{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0000_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0000_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (12237). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0000"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0000_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0000_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.5804, 0.0, 0.9955, 0.5268]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.5804, 0.4018, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.4152, 0.1116, 0.6027]}, {\"label\": \"land_transition\", \"bbox\": [0.1161, 0.0938, 0.2589, 0.1875]}, {\"label\": \"land_transition\", \"bbox\": [0.183, 0.4018, 0.2812, 0.4955]}, {\"label\": \"land_transition\", \"bbox\": [0.4062, 0.933, 0.5759, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.1116, 0.4554, 0.1875, 0.5446]}, {\"label\": \"land_transition\", \"bbox\": [0.0625, 0.3571, 0.1652, 0.4241]}, {\"label\": \"land_transition\", \"bbox\": [0.2455, 0.442, 0.317, 0.5357]}, {\"label\": \"land_transition\", \"bbox\": [0.5, 0.1696, 0.558, 0.2188]}, {\"label\": \"land_transition\", \"bbox\": [0.6518, 0.2812, 0.7411, 0.3214]}, {\"label\": \"land_transition\", \"bbox\": [0.6295, 0.4598, 0.6964, 0.5134]}, {\"label\": \"land_transition\", \"bbox\": [0.375, 0.8304, 0.4509, 0.9018]}, {\"label\": \"land_transition\", \"bbox\": [0.6295, 0.3125, 0.6562, 0.3929]}, {\"label\": \"land_transition\", \"bbox\": [0.6607, 0.1875, 0.7098, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.3348, 0.5625, 0.3795, 0.6295]}, {\"label\": \"land_transition\", \"bbox\": [0.1518, 0.5402, 0.1964, 0.5938]}, {\"label\": \"land_transition\", \"bbox\": [0.1964, 0.5045, 0.2545, 0.5536]}, {\"label\": \"land_transition\", \"bbox\": [0.2455, 0.1786, 0.2902, 0.2455]}, {\"label\": \"land_transition\", \"bbox\": [0.808, 0.4955, 0.8616, 0.5312]}]"}]}], "regions": [{"label": "land_transition", "bbox": [130, 0, 223, 118], "area_px": 4182}, {"label": "land_transition", "bbox": [0, 130, 90, 223], "area_px": 3482}, {"label": "land_transition", "bbox": [0, 93, 25, 135], "area_px": 405}, {"label": "land_transition", "bbox": [26, 21, 58, 42], "area_px": 246}, {"label": "land_transition", "bbox": [41, 90, 63, 111], "area_px": 196}, {"label": "land_transition", "bbox": [91, 209, 129, 223], "area_px": 161}, {"label": "land_transition", "bbox": [25, 102, 42, 122], "area_px": 114}, {"label": "land_transition", "bbox": [14, 80, 37, 95], "area_px": 110}, {"label": "land_transition", "bbox": [55, 99, 71, 120], "area_px": 100}, {"label": "land_transition", "bbox": [112, 38, 125, 49], "area_px": 90}, {"label": "land_transition", "bbox": [146, 63, 166, 72], "area_px": 90}, {"label": "land_transition", "bbox": [141, 103, 156, 115], "area_px": 74}, {"label": "land_transition", "bbox": [84, 186, 101, 202], "area_px": 70}, {"label": "land_transition", "bbox": [141, 70, 147, 88], "area_px": 67}, {"label": "land_transition", "bbox": [148, 42, 159, 58], "area_px": 63}, {"label": "land_transition", "bbox": [75, 126, 85, 141], "area_px": 62}, {"label": "land_transition", "bbox": [34, 121, 44, 133], "area_px": 53}, {"label": "land_transition", "bbox": [44, 113, 57, 124], "area_px": 51}, {"label": "land_transition", "bbox": [55, 40, 65, 55], "area_px": 47}, {"label": "land_transition", "bbox": [181, 111, 193, 119], "area_px": 47}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0000"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0001_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0001_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (13396). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0001"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0001_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0001_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.3304, 0.0, 0.8705, 0.5268]}, {\"label\": \"land_transition\", \"bbox\": [0.7232, 0.4777, 0.9955, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.808, 0.1161, 0.9955, 0.3929]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.6786, 0.1339, 0.8973]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.8929, 0.1518, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.1562, 0.933, 0.3259, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.6071, 0.0714, 0.6786]}, {\"label\": \"land_transition\", \"bbox\": [0.7946, 0.3839, 0.8929, 0.4821]}, {\"label\": \"land_transition\", \"bbox\": [0.75, 0.6161, 0.8214, 0.7009]}, {\"label\": \"land_transition\", \"bbox\": [0.4018, 0.2812, 0.4911, 0.3214]}, {\"label\": \"land_transition\", \"bbox\": [0.25, 0.1696, 0.308, 0.2188]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.4688, 0.067, 0.5357]}, {\"label\": \"land_transition\", \"bbox\": [0.3795, 0.4598, 0.4464, 0.5134]}, {\"label\": \"land_transition\", \"bbox\": [0.7143, 0.9554, 0.7812, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.3795, 0.3125, 0.4062, 0.3929]}, {\"label\": \"land_transition\", \"bbox\": [0.125, 0.8393, 0.2009, 0.9018]}, {\"label\": \"land_transition\", \"bbox\": [0.4107, 0.1875, 0.4598, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.0848, 0.5625, 0.1295, 0.6295]}, {\"label\": \"land_transition\", \"bbox\": [0.9554, 0.0179, 0.9955, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.8705, 0.0089, 0.9152, 0.0536]}]"}]}], "regions": [{"label": "land_transition", "bbox": [74, 0, 195, 118], "area_px": 5247}, {"label": "land_transition", "bbox": [162, 107, 223, 223], "area_px": 2235}, {"label": "land_transition", "bbox": [181, 26, 223, 88], "area_px": 746}, {"label": "land_transition", "bbox": [0, 152, 30, 201], "area_px": 561}, {"label": "land_transition", "bbox": [0, 200, 34, 223], "area_px": 503}, {"label": "land_transition", "bbox": [35, 209, 73, 223], "area_px": 160}, {"label": "land_transition", "bbox": [0, 136, 16, 152], "area_px": 155}, {"label": "land_transition", "bbox": [178, 86, 200, 108], "area_px": 132}, {"label": "land_transition", "bbox": [168, 138, 184, 157], "area_px": 131}, {"label": "land_transition", "bbox": [90, 63, 110, 72], "area_px": 90}, {"label": "land_transition", "bbox": [56, 38, 69, 49], "area_px": 89}, {"label": "land_transition", "bbox": [0, 105, 15, 120], "area_px": 88}, {"label": "land_transition", "bbox": [85, 103, 100, 115], "area_px": 74}, {"label": "land_transition", "bbox": [160, 214, 175, 223], "area_px": 70}, {"label": "land_transition", "bbox": [85, 70, 91, 88], "area_px": 67}, {"label": "land_transition", "bbox": [28, 188, 45, 202], "area_px": 65}, {"label": "land_transition", "bbox": [92, 42, 103, 58], "area_px": 63}, {"label": "land_transition", "bbox": [19, 126, 29, 141], "area_px": 62}, {"label": "land_transition", "bbox": [214, 4, 223, 18], "area_px": 54}, {"label": "land_transition", "bbox": [195, 2, 205, 12], "area_px": 48}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0001"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0002_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0002_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (14669). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0002"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0002_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0002_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.0804, 0.0, 0.6205, 0.5268]}, {\"label\": \"land_transition\", \"bbox\": [0.4732, 0.4062, 0.9286, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.558, 0.0357, 0.9554, 0.3929]}, {\"label\": \"land_transition\", \"bbox\": [0.9107, 0.2812, 0.9955, 0.4688]}, {\"label\": \"land_transition\", \"bbox\": [0.8438, 0.3214, 0.933, 0.4509]}, {\"label\": \"land_transition\", \"bbox\": [0.5446, 0.3839, 0.6429, 0.4821]}, {\"label\": \"land_transition\", \"bbox\": [0.5, 0.6161, 0.5714, 0.7009]}, {\"label\": \"land_transition\", \"bbox\": [0.1518, 0.2812, 0.2411, 0.3214]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.1696, 0.058, 0.2188]}, {\"label\": \"land_transition\", \"bbox\": [0.4643, 0.9554, 0.5312, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.1295, 0.3125, 0.1562, 0.3973]}, {\"label\": \"land_transition\", \"bbox\": [0.1607, 0.1875, 0.2098, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.7054, 0.0179, 0.75, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.1339, 0.4598, 0.1964, 0.5134]}, {\"label\": \"land_transition\", \"bbox\": [0.8884, 0.0223, 0.9509, 0.0536]}, {\"label\": \"land_transition\", \"bbox\": [0.6205, 0.0089, 0.6652, 0.0536]}, {\"label\": \"land_transition\", \"bbox\": [0.6205, 0.8125, 0.6652, 0.8661]}, {\"label\": \"land_transition\", \"bbox\": [0.308, 0.4955, 0.3616, 0.5312]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.9688, 0.0759, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.4554, 0.6295, 0.4911, 0.692]}]"}]}], "regions": [{"label": "land_transition", "bbox": [18, 0, 139, 118], "area_px": 5230}, {"label": "land_transition", "bbox": [106, 91, 208, 223], "area_px": 4122}, {"label": "land_transition", "bbox": [125, 8, 214, 88], "area_px": 1318}, {"label": "land_transition", "bbox": [204, 63, 223, 105], "area_px": 284}, {"label": "land_transition", "bbox": [189, 72, 209, 101], "area_px": 199}, {"label": "land_transition", "bbox": [122, 86, 144, 108], "area_px": 132}, {"label": "land_transition", "bbox": [112, 138, 128, 157], "area_px": 131}, {"label": "land_transition", "bbox": [34, 63, 54, 72], "area_px": 91}, {"label": "land_transition", "bbox": [0, 38, 13, 49], "area_px": 90}, {"label": "land_transition", "bbox": [104, 214, 119, 223], "area_px": 70}, {"label": "land_transition", "bbox": [29, 70, 35, 89], "area_px": 67}, {"label": "land_transition", "bbox": [36, 42, 47, 58], "area_px": 64}, {"label": "land_transition", "bbox": [158, 4, 168, 18], "area_px": 56}, {"label": "land_transition", "bbox": [30, 103, 44, 115], "area_px": 56}, {"label": "land_transition", "bbox": [199, 5, 213, 12], "area_px": 53}, {"label": "land_transition", "bbox": [139, 2, 149, 12], "area_px": 48}, {"label": "land_transition", "bbox": [139, 182, 149, 194], "area_px": 48}, {"label": "land_transition", "bbox": [69, 111, 81, 119], "area_px": 47}, {"label": "land_transition", "bbox": [0, 217, 17, 223], "area_px": 45}, {"label": "land_transition", "bbox": [102, 141, 110, 155], "area_px": 44}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0002"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0003_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0003_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (18164). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0003"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0003_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0003_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.6607, 0.0045, 0.9955, 0.8705]}, {\"label\": \"land_transition\", \"bbox\": [0.2232, 0.4062, 0.6786, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.0, 0.3705, 0.5268]}, {\"label\": \"land_transition\", \"bbox\": [0.308, 0.0357, 0.7054, 0.3929]}, {\"label\": \"land_transition\", \"bbox\": [0.7946, 0.8527, 0.9955, 0.9911]}, {\"label\": \"land_transition\", \"bbox\": [0.5938, 0.3214, 0.683, 0.4509]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.0, 0.1161, 0.0357]}, {\"label\": \"land_transition\", \"bbox\": [0.2946, 0.3839, 0.3929, 0.4821]}, {\"label\": \"land_transition\", \"bbox\": [0.8259, 0.0, 0.9062, 0.058]}, {\"label\": \"land_transition\", \"bbox\": [0.7188, 0.4777, 0.7812, 0.5357]}, {\"label\": \"land_transition\", \"bbox\": [0.2143, 0.9554, 0.2812, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.2232, 0.3884, 0.2812, 0.4464]}, {\"label\": \"land_transition\", \"bbox\": [0.4554, 0.0179, 0.5, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.6384, 0.0223, 0.7009, 0.0536]}, {\"label\": \"land_transition\", \"bbox\": [0.3705, 0.0089, 0.4152, 0.0536]}, {\"label\": \"land_transition\", \"bbox\": [0.3705, 0.8125, 0.4152, 0.8661]}, {\"label\": \"land_transition\", \"bbox\": [0.9598, 0.4732, 0.9955, 0.5179]}, {\"label\": \"land_transition\", \"bbox\": [0.058, 0.4955, 0.1116, 0.5312]}, {\"label\": \"land_transition\", \"bbox\": [0.2009, 0.6295, 0.2411, 0.692]}, {\"label\": \"land_transition\", \"bbox\": [0.933, 0.7902, 0.9688, 0.8304]}]"}]}], "regions": [{"label": "land_transition", "bbox": [148, 1, 223, 195], "area_px": 4640}, {"label": "land_transition", "bbox": [50, 91, 152, 223], "area_px": 4272}, {"label": "land_transition", "bbox": [0, 0, 83, 118], "area_px": 4147}, {"label": "land_transition", "bbox": [69, 8, 158, 88], "area_px": 1317}, {"label": "land_transition", "bbox": [178, 191, 223, 222], "area_px": 389}, {"label": "land_transition", "bbox": [133, 72, 153, 101], "area_px": 199}, {"label": "land_transition", "bbox": [0, 0, 26, 8], "area_px": 136}, {"label": "land_transition", "bbox": [66, 86, 88, 108], "area_px": 133}, {"label": "land_transition", "bbox": [185, 0, 203, 13], "area_px": 102}, {"label": "land_transition", "bbox": [161, 107, 175, 120], "area_px": 80}, {"label": "land_transition", "bbox": [48, 214, 63, 223], "area_px": 71}, {"label": "land_transition", "bbox": [50, 87, 63, 100], "area_px": 60}, {"label": "land_transition", "bbox": [102, 4, 112, 18], "area_px": 56}, {"label": "land_transition", "bbox": [143, 5, 157, 12], "area_px": 53}, {"label": "land_transition", "bbox": [83, 2, 93, 12], "area_px": 48}, {"label": "land_transition", "bbox": [83, 182, 93, 194], "area_px": 48}, {"label": "land_transition", "bbox": [215, 106, 223, 116], "area_px": 47}, {"label": "land_transition", "bbox": [13, 111, 25, 119], "area_px": 47}, {"label": "land_transition", "bbox": [45, 141, 54, 155], "area_px": 44}, {"label": "land_transition", "bbox": [209, 177, 217, 186], "area_px": 41}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0003"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0004_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0004_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (11333). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0004"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0004_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0004_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.0, 0.3304, 0.4062, 0.8482]}, {\"label\": \"land_transition\", \"bbox\": [0.75, 0.0, 0.9955, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.7366, 0.1429, 0.9107]}, {\"label\": \"land_transition\", \"bbox\": [0.4866, 0.8527, 0.6071, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.1652, 0.1116, 0.3527]}, {\"label\": \"land_transition\", \"bbox\": [0.4062, 0.683, 0.5759, 0.8125]}, {\"label\": \"land_transition\", \"bbox\": [0.6116, 0.8482, 0.692, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.183, 0.1518, 0.2812, 0.2455]}, {\"label\": \"land_transition\", \"bbox\": [0.0625, 0.1071, 0.1652, 0.1741]}, {\"label\": \"land_transition\", \"bbox\": [0.2455, 0.192, 0.317, 0.2857]}, {\"label\": \"land_transition\", \"bbox\": [0.1116, 0.2009, 0.1607, 0.2946]}, {\"label\": \"land_transition\", \"bbox\": [0.6518, 0.0312, 0.7411, 0.0759]}, {\"label\": \"land_transition\", \"bbox\": [0.4911, 0.7991, 0.5402, 0.8571]}, {\"label\": \"land_transition\", \"bbox\": [0.375, 0.5804, 0.4509, 0.6518]}, {\"label\": \"land_transition\", \"bbox\": [0.6429, 0.2098, 0.7009, 0.2679]}, {\"label\": \"land_transition\", \"bbox\": [0.6295, 0.0625, 0.6562, 0.1429]}, {\"label\": \"land_transition\", \"bbox\": [0.3348, 0.3125, 0.3795, 0.3795]}, {\"label\": \"land_transition\", \"bbox\": [0.3125, 0.942, 0.3839, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.1964, 0.2545, 0.2545, 0.3036]}, {\"label\": \"land_transition\", \"bbox\": [0.1518, 0.2902, 0.1964, 0.3438]}]"}]}], "regions": [{"label": "land_transition", "bbox": [0, 74, 91, 190], "area_px": 4230}, {"label": "land_transition", "bbox": [168, 0, 223, 58], "area_px": 1100}, {"label": "land_transition", "bbox": [0, 165, 32, 204], "area_px": 642}, {"label": "land_transition", "bbox": [109, 191, 136, 223], "area_px": 433}, {"label": "land_transition", "bbox": [0, 37, 25, 79], "area_px": 420}, {"label": "land_transition", "bbox": [91, 153, 129, 182], "area_px": 319}, {"label": "land_transition", "bbox": [137, 190, 155, 223], "area_px": 249}, {"label": "land_transition", "bbox": [41, 34, 63, 55], "area_px": 198}, {"label": "land_transition", "bbox": [14, 24, 37, 39], "area_px": 107}, {"label": "land_transition", "bbox": [55, 43, 71, 64], "area_px": 97}, {"label": "land_transition", "bbox": [25, 45, 36, 66], "area_px": 96}, {"label": "land_transition", "bbox": [146, 7, 166, 17], "area_px": 92}, {"label": "land_transition", "bbox": [110, 179, 121, 192], "area_px": 72}, {"label": "land_transition", "bbox": [84, 130, 101, 146], "area_px": 70}, {"label": "land_transition", "bbox": [144, 47, 157, 60], "area_px": 67}, {"label": "land_transition", "bbox": [141, 14, 147, 32], "area_px": 66}, {"label": "land_transition", "bbox": [75, 70, 85, 85], "area_px": 65}, {"label": "land_transition", "bbox": [70, 211, 86, 223], "area_px": 54}, {"label": "land_transition", "bbox": [44, 57, 57, 68], "area_px": 52}, {"label": "land_transition", "bbox": [34, 65, 44, 77], "area_px": 52}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0004"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0005_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0005_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10668). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0005"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0005_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0005_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.7232, 0.25, 0.9955, 0.7455]}, {\"label\": \"land_transition\", \"bbox\": [0.5, 0.0, 0.8929, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.6429, 0.1562, 0.8438]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.4286, 0.1339, 0.6473]}, {\"label\": \"land_transition\", \"bbox\": [0.2366, 0.8527, 0.3571, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.1562, 0.683, 0.3259, 0.808]}, {\"label\": \"land_transition\", \"bbox\": [0.3616, 0.8482, 0.442, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.808, 0.0, 0.9464, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.942, 0.2277, 0.9955, 0.375]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.3571, 0.0714, 0.4286]}, {\"label\": \"land_transition\", \"bbox\": [0.75, 0.3661, 0.8214, 0.4509]}, {\"label\": \"land_transition\", \"bbox\": [0.8795, 0.0714, 0.9598, 0.1429]}, {\"label\": \"land_transition\", \"bbox\": [0.4018, 0.0312, 0.4911, 0.0759]}, {\"label\": \"land_transition\", \"bbox\": [0.0045, 0.2188, 0.067, 0.2857]}, {\"label\": \"land_transition\", \"bbox\": [0.7143, 0.7054, 0.7812, 0.7545]}, {\"label\": \"land_transition\", \"bbox\": [0.2411, 0.7991, 0.2902, 0.8527]}, {\"label\": \"land_transition\", \"bbox\": [0.3929, 0.2098, 0.4509, 0.2679]}, {\"label\": \"land_transition\", \"bbox\": [0.3795, 0.0625, 0.4062, 0.1429]}, {\"label\": \"land_transition\", \"bbox\": [0.0848, 0.3125, 0.1295, 0.3795]}, {\"label\": \"land_transition\", \"bbox\": [0.125, 0.5893, 0.2009, 0.6518]}]"}]}], "regions": [{"label": "land_transition", "bbox": [162, 56, 223, 167], "area_px": 2025}, {"label": "land_transition", "bbox": [112, 0, 200, 58], "area_px": 1539}, {"label": "land_transition", "bbox": [0, 144, 35, 189], "area_px": 904}, {"label": "land_transition", "bbox": [0, 96, 30, 145], "area_px": 561}, {"label": "land_transition", "bbox": [53, 191, 80, 223], "area_px": 435}, {"label": "land_transition", "bbox": [35, 153, 73, 181], "area_px": 316}, {"label": "land_transition", "bbox": [81, 190, 99, 223], "area_px": 249}, {"label": "land_transition", "bbox": [181, 0, 212, 18], "area_px": 226}, {"label": "land_transition", "bbox": [211, 51, 223, 84], "area_px": 212}, {"label": "land_transition", "bbox": [0, 80, 16, 96], "area_px": 155}, {"label": "land_transition", "bbox": [168, 82, 184, 101], "area_px": 131}, {"label": "land_transition", "bbox": [197, 16, 215, 32], "area_px": 120}, {"label": "land_transition", "bbox": [90, 7, 110, 17], "area_px": 92}, {"label": "land_transition", "bbox": [1, 49, 15, 64], "area_px": 74}, {"label": "land_transition", "bbox": [160, 158, 175, 169], "area_px": 74}, {"label": "land_transition", "bbox": [54, 179, 65, 191], "area_px": 69}, {"label": "land_transition", "bbox": [88, 47, 101, 60], "area_px": 67}, {"label": "land_transition", "bbox": [85, 14, 91, 32], "area_px": 66}, {"label": "land_transition", "bbox": [19, 70, 29, 85], "area_px": 65}, {"label": "land_transition", "bbox": [28, 132, 45, 146], "area_px": 65}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0005"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0006_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0006_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10533). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0006"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0006_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0006_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.4732, 0.25, 0.9286, 0.7768]}, {\"label\": \"land_transition\", \"bbox\": [0.25, 0.0, 0.6429, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.692, 0.1562, 0.8259, 0.375]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.8527, 0.1071, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.9107, 0.0312, 0.9955, 0.2188]}, {\"label\": \"land_transition\", \"bbox\": [0.1116, 0.8482, 0.192, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.558, 0.0, 0.6964, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.8438, 0.0714, 0.933, 0.1964]}, {\"label\": \"land_transition\", \"bbox\": [0.5, 0.3661, 0.5714, 0.4509]}, {\"label\": \"land_transition\", \"bbox\": [0.6295, 0.0714, 0.7098, 0.1429]}, {\"label\": \"land_transition\", \"bbox\": [0.7634, 0.9554, 0.8571, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.1518, 0.0312, 0.2411, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.4643, 0.7054, 0.5312, 0.7545]}, {\"label\": \"land_transition\", \"bbox\": [0.1339, 0.2098, 0.2009, 0.2679]}, {\"label\": \"land_transition\", \"bbox\": [0.1295, 0.0625, 0.1562, 0.1473]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.7991, 0.0402, 0.8571]}, {\"label\": \"land_transition\", \"bbox\": [0.683, 0.9598, 0.7321, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.7188, 0.0759, 0.7679]}, {\"label\": \"land_transition\", \"bbox\": [0.308, 0.2455, 0.3616, 0.2812]}, {\"label\": \"land_transition\", \"bbox\": [0.6205, 0.5625, 0.6652, 0.6161]}]"}]}], "regions": [{"label": "land_transition", "bbox": [106, 56, 208, 174], "area_px": 3595}, {"label": "land_transition", "bbox": [56, 0, 144, 58], "area_px": 1534}, {"label": "land_transition", "bbox": [155, 35, 185, 84], "area_px": 558}, {"label": "land_transition", "bbox": [0, 191, 24, 223], "area_px": 416}, {"label": "land_transition", "bbox": [204, 7, 223, 49], "area_px": 301}, {"label": "land_transition", "bbox": [25, 190, 43, 223], "area_px": 248}, {"label": "land_transition", "bbox": [125, 0, 156, 18], "area_px": 226}, {"label": "land_transition", "bbox": [189, 16, 209, 44], "area_px": 197}, {"label": "land_transition", "bbox": [112, 82, 128, 101], "area_px": 131}, {"label": "land_transition", "bbox": [141, 16, 159, 32], "area_px": 120}, {"label": "land_transition", "bbox": [171, 214, 192, 223], "area_px": 97}, {"label": "land_transition", "bbox": [34, 7, 54, 18], "area_px": 96}, {"label": "land_transition", "bbox": [104, 158, 119, 169], "area_px": 74}, {"label": "land_transition", "bbox": [30, 47, 45, 60], "area_px": 67}, {"label": "land_transition", "bbox": [29, 14, 35, 33], "area_px": 66}, {"label": "land_transition", "bbox": [0, 179, 9, 192], "area_px": 66}, {"label": "land_transition", "bbox": [153, 215, 164, 223], "area_px": 65}, {"label": "land_transition", "bbox": [0, 161, 17, 172], "area_px": 57}, {"label": "land_transition", "bbox": [69, 55, 81, 63], "area_px": 49}, {"label": "land_transition", "bbox": [139, 126, 149, 138], "area_px": 48}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0006"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0007_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0007_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (12986). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0007"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0007_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0007_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.2232, 0.25, 0.6786, 0.7768]}, {\"label\": \"land_transition\", \"bbox\": [0.6607, 0.0, 0.9955, 0.6205]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.0, 0.3929, 0.2768]}, {\"label\": \"land_transition\", \"bbox\": [0.442, 0.1562, 0.5759, 0.375]}, {\"label\": \"land_transition\", \"bbox\": [0.7946, 0.6027, 0.9955, 0.7411]}, {\"label\": \"land_transition\", \"bbox\": [0.308, 0.0, 0.4464, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.5938, 0.0714, 0.683, 0.1964]}, {\"label\": \"land_transition\", \"bbox\": [0.3795, 0.0714, 0.4598, 0.1429]}, {\"label\": \"land_transition\", \"bbox\": [0.5134, 0.9554, 0.6071, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.7188, 0.2321, 0.7768, 0.2857]}, {\"label\": \"land_transition\", \"bbox\": [0.2143, 0.7054, 0.2812, 0.7545]}, {\"label\": \"land_transition\", \"bbox\": [0.433, 0.9598, 0.4821, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.2232, 0.1384, 0.2857, 0.1964]}, {\"label\": \"land_transition\", \"bbox\": [0.058, 0.2455, 0.1116, 0.2812]}, {\"label\": \"land_transition\", \"bbox\": [0.3705, 0.5625, 0.4152, 0.6161]}, {\"label\": \"land_transition\", \"bbox\": [0.2009, 0.3795, 0.2411, 0.442]}, {\"label\": \"land_transition\", \"bbox\": [0.9598, 0.2321, 0.9955, 0.2679]}, {\"label\": \"land_transition\", \"bbox\": [0.933, 0.5402, 0.9688, 0.5804]}, {\"label\": \"land_transition\", \"bbox\": [0.4107, 0.6339, 0.4509, 0.6964]}, {\"label\": \"land_transition\", \"bbox\": [0.8795, 0.9241, 0.9062, 0.9643]}]"}]}], "regions": [{"label": "land_transition", "bbox": [50, 56, 152, 174], "area_px": 3745}, {"label": "land_transition", "bbox": [148, 0, 223, 139], "area_px": 3284}, {"label": "land_transition", "bbox": [0, 0, 88, 62], "area_px": 1495}, {"label": "land_transition", "bbox": [99, 35, 129, 84], "area_px": 558}, {"label": "land_transition", "bbox": [178, 135, 223, 166], "area_px": 389}, {"label": "land_transition", "bbox": [69, 0, 100, 18], "area_px": 224}, {"label": "land_transition", "bbox": [133, 16, 153, 44], "area_px": 197}, {"label": "land_transition", "bbox": [85, 16, 103, 32], "area_px": 120}, {"label": "land_transition", "bbox": [115, 214, 136, 223], "area_px": 97}, {"label": "land_transition", "bbox": [161, 52, 174, 64], "area_px": 75}, {"label": "land_transition", "bbox": [48, 158, 63, 169], "area_px": 75}, {"label": "land_transition", "bbox": [97, 215, 108, 223], "area_px": 65}, {"label": "land_transition", "bbox": [50, 31, 64, 44], "area_px": 61}, {"label": "land_transition", "bbox": [13, 55, 25, 63], "area_px": 49}, {"label": "land_transition", "bbox": [83, 126, 93, 138], "area_px": 48}, {"label": "land_transition", "bbox": [45, 85, 54, 99], "area_px": 44}, {"label": "land_transition", "bbox": [215, 52, 223, 60], "area_px": 43}, {"label": "land_transition", "bbox": [209, 121, 217, 130], "area_px": 41}, {"label": "land_transition", "bbox": [92, 142, 101, 156], "area_px": 39}, {"label": "land_transition", "bbox": [197, 207, 203, 216], "area_px": 38}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0007"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0008_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0008_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10762). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0008"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0008_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0008_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.0, 0.0804, 0.4062, 0.5982]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.4866, 0.1429, 0.6607]}, {\"label\": \"land_transition\", \"bbox\": [0.4554, 0.6027, 0.6071, 0.7991]}, {\"label\": \"land_transition\", \"bbox\": [0.3527, 0.8348, 0.4955, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.5938, 0.7455, 0.7991, 0.9107]}, {\"label\": \"land_transition\", \"bbox\": [0.4062, 0.433, 0.5759, 0.5625]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.0, 0.1116, 0.1027]}, {\"label\": \"land_transition\", \"bbox\": [0.6116, 0.5982, 0.692, 0.7679]}, {\"label\": \"land_transition\", \"bbox\": [0.7634, 0.9062, 0.8304, 0.9866]}, {\"label\": \"land_transition\", \"bbox\": [0.9018, 0.125, 0.9911, 0.192]}, {\"label\": \"land_transition\", \"bbox\": [0.3304, 0.75, 0.4152, 0.7946]}, {\"label\": \"land_transition\", \"bbox\": [0.3839, 0.7991, 0.4911, 0.8482]}, {\"label\": \"land_transition\", \"bbox\": [0.4911, 0.5491, 0.5402, 0.6071]}, {\"label\": \"land_transition\", \"bbox\": [0.375, 0.3304, 0.4509, 0.4018]}, {\"label\": \"land_transition\", \"bbox\": [0.3348, 0.0625, 0.3795, 0.1295]}, {\"label\": \"land_transition\", \"bbox\": [0.1116, 0.0, 0.1875, 0.0446]}, {\"label\": \"land_transition\", \"bbox\": [0.3036, 0.692, 0.3839, 0.75]}, {\"label\": \"land_transition\", \"bbox\": [0.1518, 0.0402, 0.1964, 0.0938]}, {\"label\": \"land_transition\", \"bbox\": [0.1964, 0.0045, 0.2545, 0.0536]}, {\"label\": \"land_transition\", \"bbox\": [0.808, 0.0, 0.8616, 0.0312]}]"}]}], "regions": [{"label": "land_transition", "bbox": [0, 18, 91, 134], "area_px": 4208}, {"label": "land_transition", "bbox": [0, 109, 32, 148], "area_px": 642}, {"label": "land_transition", "bbox": [102, 135, 136, 179], "area_px": 627}, {"label": "land_transition", "bbox": [79, 187, 111, 223], "area_px": 584}, {"label": "land_transition", "bbox": [133, 167, 179, 204], "area_px": 464}, {"label": "land_transition", "bbox": [91, 97, 129, 126], "area_px": 319}, {"label": "land_transition", "bbox": [0, 0, 25, 23], "area_px": 258}, {"label": "land_transition", "bbox": [137, 134, 155, 172], "area_px": 257}, {"label": "land_transition", "bbox": [171, 203, 186, 221], "area_px": 133}, {"label": "land_transition", "bbox": [202, 28, 222, 43], "area_px": 86}, {"label": "land_transition", "bbox": [74, 168, 93, 178], "area_px": 86}, {"label": "land_transition", "bbox": [86, 179, 110, 190], "area_px": 74}, {"label": "land_transition", "bbox": [110, 123, 121, 136], "area_px": 72}, {"label": "land_transition", "bbox": [84, 74, 101, 90], "area_px": 70}, {"label": "land_transition", "bbox": [75, 14, 85, 29], "area_px": 62}, {"label": "land_transition", "bbox": [25, 0, 42, 10], "area_px": 60}, {"label": "land_transition", "bbox": [68, 155, 86, 168], "area_px": 60}, {"label": "land_transition", "bbox": [34, 9, 44, 21], "area_px": 53}, {"label": "land_transition", "bbox": [44, 1, 57, 12], "area_px": 51}, {"label": "land_transition", "bbox": [181, 0, 193, 7], "area_px": 46}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0008"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0009_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0009_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10152). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0009"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0009_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0009_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.7232, 0.0, 0.9955, 0.4955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.3929, 0.1562, 0.5938]}, {\"label\": \"land_transition\", \"bbox\": [0.2054, 0.6027, 0.3571, 0.7991]}, {\"label\": \"land_transition\", \"bbox\": [0.1027, 0.8348, 0.2455, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.1786, 0.1339, 0.3973]}, {\"label\": \"land_transition\", \"bbox\": [0.3438, 0.7455, 0.5491, 0.9107]}, {\"label\": \"land_transition\", \"bbox\": [0.9062, 0.7098, 0.9955, 0.9464]}, {\"label\": \"land_transition\", \"bbox\": [0.1562, 0.433, 0.3259, 0.558]}, {\"label\": \"land_transition\", \"bbox\": [0.3616, 0.5982, 0.442, 0.7679]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.1071, 0.0714, 0.1786]}, {\"label\": \"land_transition\", \"bbox\": [0.5134, 0.9062, 0.5804, 0.9866]}, {\"label\": \"land_transition\", \"bbox\": [0.75, 0.1161, 0.8214, 0.1964]}, {\"label\": \"land_transition\", \"bbox\": [0.0804, 0.75, 0.183, 0.7946]}, {\"label\": \"land_transition\", \"bbox\": [0.6518, 0.125, 0.7411, 0.192]}, {\"label\": \"land_transition\", \"bbox\": [0.7143, 0.4554, 0.7812, 0.5045]}, {\"label\": \"land_transition\", \"bbox\": [0.2411, 0.5491, 0.2902, 0.6027]}, {\"label\": \"land_transition\", \"bbox\": [0.1339, 0.7991, 0.2366, 0.8393]}, {\"label\": \"land_transition\", \"bbox\": [0.125, 0.3393, 0.2009, 0.4018]}, {\"label\": \"land_transition\", \"bbox\": [0.0848, 0.0625, 0.1295, 0.1295]}, {\"label\": \"land_transition\", \"bbox\": [0.0536, 0.692, 0.1339, 0.75]}]"}]}], "regions": [{"label": "land_transition", "bbox": [162, 0, 223, 111], "area_px": 2230}, {"label": "land_transition", "bbox": [0, 88, 35, 133], "area_px": 904}, {"label": "land_transition", "bbox": [46, 135, 80, 179], "area_px": 629}, {"label": "land_transition", "bbox": [23, 187, 55, 223], "area_px": 569}, {"label": "land_transition", "bbox": [0, 40, 30, 89], "area_px": 549}, {"label": "land_transition", "bbox": [77, 167, 123, 204], "area_px": 464}, {"label": "land_transition", "bbox": [203, 159, 223, 212], "area_px": 417}, {"label": "land_transition", "bbox": [35, 97, 73, 125], "area_px": 316}, {"label": "land_transition", "bbox": [81, 134, 99, 172], "area_px": 257}, {"label": "land_transition", "bbox": [0, 24, 16, 40], "area_px": 155}, {"label": "land_transition", "bbox": [115, 203, 130, 221], "area_px": 133}, {"label": "land_transition", "bbox": [168, 26, 184, 44], "area_px": 131}, {"label": "land_transition", "bbox": [18, 168, 41, 178], "area_px": 93}, {"label": "land_transition", "bbox": [146, 28, 166, 43], "area_px": 86}, {"label": "land_transition", "bbox": [160, 102, 175, 113], "area_px": 74}, {"label": "land_transition", "bbox": [54, 123, 65, 135], "area_px": 69}, {"label": "land_transition", "bbox": [30, 179, 53, 188], "area_px": 68}, {"label": "land_transition", "bbox": [28, 76, 45, 90], "area_px": 65}, {"label": "land_transition", "bbox": [19, 14, 29, 29], "area_px": 62}, {"label": "land_transition", "bbox": [12, 155, 30, 168], "area_px": 60}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0009"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0010_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0010_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (9757). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0010"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0010_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0010_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.4732, 0.0, 0.9286, 0.5268]}, {\"label\": \"land_transition\", \"bbox\": [0.6562, 0.7054, 0.8839, 0.9464]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.6027, 0.1071, 0.7991]}, {\"label\": \"land_transition\", \"bbox\": [0.8304, 0.9018, 0.9955, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.125, 0.7455, 0.2991, 0.9107]}, {\"label\": \"land_transition\", \"bbox\": [0.1116, 0.5982, 0.192, 0.7679]}, {\"label\": \"land_transition\", \"bbox\": [0.5, 0.1161, 0.5714, 0.1964]}, {\"label\": \"land_transition\", \"bbox\": [0.2679, 0.9062, 0.3304, 0.9821]}, {\"label\": \"land_transition\", \"bbox\": [0.4018, 0.125, 0.4911, 0.192]}, {\"label\": \"land_transition\", \"bbox\": [0.4643, 0.4554, 0.5312, 0.5045]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.5491, 0.0402, 0.6071]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.4688, 0.0759, 0.5179]}, {\"label\": \"land_transition\", \"bbox\": [0.308, 0.0, 0.3616, 0.0312]}, {\"label\": \"land_transition\", \"bbox\": [0.6607, 0.3839, 0.7009, 0.4464]}, {\"label\": \"land_transition\", \"bbox\": [0.6295, 0.3259, 0.6652, 0.3661]}, {\"label\": \"land_transition\", \"bbox\": [0.5536, 0.8438, 0.6116, 0.8705]}, {\"label\": \"land_transition\", \"bbox\": [0.3527, 0.9554, 0.3795, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.817, 0.0536, 0.8571]}, {\"label\": \"land_transition\", \"bbox\": [0.4911, 0.808, 0.5134, 0.8438]}, {\"label\": \"land_transition\", \"bbox\": [0.4821, 0.4196, 0.5268, 0.4509]}]"}]}], "regions": [{"label": "land_transition", "bbox": [106, 0, 208, 118], "area_px": 3990}, {"label": "land_transition", "bbox": [147, 158, 198, 212], "area_px": 1164}, {"label": "land_transition", "bbox": [0, 135, 24, 179], "area_px": 523}, {"label": "land_transition", "bbox": [186, 202, 223, 223], "area_px": 486}, {"label": "land_transition", "bbox": [28, 167, 67, 204], "area_px": 435}, {"label": "land_transition", "bbox": [25, 134, 43, 172], "area_px": 256}, {"label": "land_transition", "bbox": [112, 26, 128, 44], "area_px": 131}, {"label": "land_transition", "bbox": [60, 203, 74, 220], "area_px": 125}, {"label": "land_transition", "bbox": [90, 28, 110, 43], "area_px": 86}, {"label": "land_transition", "bbox": [104, 102, 119, 113], "area_px": 74}, {"label": "land_transition", "bbox": [0, 123, 9, 136], "area_px": 66}, {"label": "land_transition", "bbox": [0, 105, 17, 116], "area_px": 57}, {"label": "land_transition", "bbox": [69, 0, 81, 7], "area_px": 46}, {"label": "land_transition", "bbox": [148, 86, 157, 100], "area_px": 39}, {"label": "land_transition", "bbox": [141, 73, 149, 82], "area_px": 37}, {"label": "land_transition", "bbox": [124, 189, 137, 195], "area_px": 36}, {"label": "land_transition", "bbox": [79, 214, 85, 223], "area_px": 36}, {"label": "land_transition", "bbox": [0, 183, 12, 192], "area_px": 34}, {"label": "land_transition", "bbox": [110, 181, 115, 189], "area_px": 32}, {"label": "land_transition", "bbox": [108, 94, 118, 101], "area_px": 31}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0010"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0011_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0011_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10764). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0011"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0011_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0011_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.2232, 0.0, 0.6786, 0.5268]}, {\"label\": \"land_transition\", \"bbox\": [0.7857, 0.0, 0.9955, 0.3705]}, {\"label\": \"land_transition\", \"bbox\": [0.4062, 0.7054, 0.6339, 0.9464]}, {\"label\": \"land_transition\", \"bbox\": [0.5804, 0.9018, 0.7768, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.7946, 0.3527, 0.9955, 0.4911]}, {\"label\": \"land_transition\", \"bbox\": [0.0134, 0.9062, 0.0804, 0.9866]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.7455, 0.0491, 0.8125]}, {\"label\": \"land_transition\", \"bbox\": [0.2143, 0.4554, 0.2812, 0.5045]}, {\"label\": \"land_transition\", \"bbox\": [0.1741, 0.1295, 0.2411, 0.192]}, {\"label\": \"land_transition\", \"bbox\": [0.7188, 0.0, 0.7768, 0.0357]}, {\"label\": \"land_transition\", \"bbox\": [0.058, 0.0, 0.1116, 0.0312]}, {\"label\": \"land_transition\", \"bbox\": [0.7946, 0.317, 0.8259, 0.3795]}, {\"label\": \"land_transition\", \"bbox\": [0.933, 0.2902, 0.9688, 0.3304]}, {\"label\": \"land_transition\", \"bbox\": [0.4107, 0.3839, 0.4509, 0.4464]}, {\"label\": \"land_transition\", \"bbox\": [0.8795, 0.6741, 0.9062, 0.7143]}, {\"label\": \"land_transition\", \"bbox\": [0.3795, 0.3259, 0.4152, 0.3661]}, {\"label\": \"land_transition\", \"bbox\": [0.2321, 0.4062, 0.2768, 0.4554]}, {\"label\": \"land_transition\", \"bbox\": [0.9062, 0.6027, 0.9732, 0.6429]}, {\"label\": \"land_transition\", \"bbox\": [0.1027, 0.9554, 0.1295, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.3036, 0.8438, 0.3616, 0.8705]}]"}]}], "regions": [{"label": "land_transition", "bbox": [50, 0, 152, 118], "area_px": 4136}, {"label": "land_transition", "bbox": [176, 0, 223, 83], "area_px": 1534}, {"label": "land_transition", "bbox": [91, 158, 142, 212], "area_px": 1164}, {"label": "land_transition", "bbox": [130, 202, 174, 223], "area_px": 561}, {"label": "land_transition", "bbox": [178, 79, 223, 110], "area_px": 389}, {"label": "land_transition", "bbox": [3, 203, 18, 221], "area_px": 133}, {"label": "land_transition", "bbox": [0, 167, 11, 182], "area_px": 106}, {"label": "land_transition", "bbox": [48, 102, 63, 113], "area_px": 75}, {"label": "land_transition", "bbox": [39, 29, 54, 43], "area_px": 68}, {"label": "land_transition", "bbox": [161, 0, 174, 8], "area_px": 49}, {"label": "land_transition", "bbox": [13, 0, 25, 7], "area_px": 46}, {"label": "land_transition", "bbox": [178, 71, 185, 85], "area_px": 45}, {"label": "land_transition", "bbox": [209, 65, 217, 74], "area_px": 41}, {"label": "land_transition", "bbox": [92, 86, 101, 100], "area_px": 39}, {"label": "land_transition", "bbox": [197, 151, 203, 160], "area_px": 38}, {"label": "land_transition", "bbox": [85, 73, 93, 82], "area_px": 37}, {"label": "land_transition", "bbox": [52, 91, 62, 102], "area_px": 37}, {"label": "land_transition", "bbox": [203, 135, 218, 144], "area_px": 37}, {"label": "land_transition", "bbox": [23, 214, 29, 223], "area_px": 36}, {"label": "land_transition", "bbox": [68, 189, 81, 195], "area_px": 35}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0011"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0012_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0012_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10886). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0012"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0012_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0012_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.0, 0.0, 0.4062, 0.3482]}, {\"label\": \"land_transition\", \"bbox\": [0.4286, 0.7946, 0.6071, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.8482, 0.7054, 0.9955, 0.933]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.2321, 0.1429, 0.4107]}, {\"label\": \"land_transition\", \"bbox\": [0.4554, 0.3527, 0.6071, 0.5491]}, {\"label\": \"land_transition\", \"bbox\": [0.3527, 0.5848, 0.4955, 0.7634]}, {\"label\": \"land_transition\", \"bbox\": [0.5938, 0.4955, 0.7991, 0.6607]}, {\"label\": \"land_transition\", \"bbox\": [0.4062, 0.183, 0.5759, 0.3125]}, {\"label\": \"land_transition\", \"bbox\": [0.6116, 0.3482, 0.692, 0.5179]}, {\"label\": \"land_transition\", \"bbox\": [0.7321, 0.8929, 0.8125, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.7634, 0.6562, 0.8304, 0.7366]}, {\"label\": \"land_transition\", \"bbox\": [0.3259, 0.8304, 0.4643, 0.8929]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.7277, 0.0446, 0.7946]}, {\"label\": \"land_transition\", \"bbox\": [0.4911, 0.2679, 0.5491, 0.3571]}, {\"label\": \"land_transition\", \"bbox\": [0.3304, 0.5, 0.4152, 0.5446]}, {\"label\": \"land_transition\", \"bbox\": [0.9375, 0.9375, 0.9955, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.2946, 0.9643, 0.3884, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.6875, 0.817, 0.7589, 0.8705]}, {\"label\": \"land_transition\", \"bbox\": [0.3839, 0.5491, 0.4911, 0.5982]}, {\"label\": \"land_transition\", \"bbox\": [0.375, 0.0804, 0.4509, 0.1518]}]"}]}], "regions": [{"label": "land_transition", "bbox": [0, 0, 91, 78], "area_px": 2872}, {"label": "land_transition", "bbox": [96, 178, 136, 223], "area_px": 729}, {"label": "land_transition", "bbox": [190, 158, 223, 209], "area_px": 664}, {"label": "land_transition", "bbox": [0, 52, 32, 92], "area_px": 646}, {"label": "land_transition", "bbox": [102, 79, 136, 123], "area_px": 627}, {"label": "land_transition", "bbox": [79, 131, 111, 171], "area_px": 625}, {"label": "land_transition", "bbox": [133, 111, 179, 148], "area_px": 464}, {"label": "land_transition", "bbox": [91, 41, 129, 70], "area_px": 323}, {"label": "land_transition", "bbox": [137, 78, 155, 116], "area_px": 257}, {"label": "land_transition", "bbox": [164, 200, 182, 223], "area_px": 137}, {"label": "land_transition", "bbox": [171, 147, 186, 165], "area_px": 133}, {"label": "land_transition", "bbox": [73, 186, 104, 200], "area_px": 102}, {"label": "land_transition", "bbox": [0, 163, 10, 178], "area_px": 101}, {"label": "land_transition", "bbox": [110, 60, 123, 80], "area_px": 95}, {"label": "land_transition", "bbox": [74, 112, 93, 122], "area_px": 86}, {"label": "land_transition", "bbox": [210, 210, 223, 223], "area_px": 84}, {"label": "land_transition", "bbox": [66, 216, 87, 223], "area_px": 81}, {"label": "land_transition", "bbox": [154, 183, 170, 195], "area_px": 76}, {"label": "land_transition", "bbox": [86, 123, 110, 134], "area_px": 74}, {"label": "land_transition", "bbox": [84, 18, 101, 34], "area_px": 72}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0012"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0013_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0013_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10432). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0013"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0013_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0013_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.5982, 0.7054, 0.8705, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.1429, 0.1562, 0.3438]}, {\"label\": \"land_transition\", \"bbox\": [0.1786, 0.7857, 0.3571, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.2054, 0.3527, 0.3571, 0.5491]}, {\"label\": \"land_transition\", \"bbox\": [0.1027, 0.5848, 0.2455, 0.7634]}, {\"label\": \"land_transition\", \"bbox\": [0.817, 0.0, 0.9955, 0.2455]}, {\"label\": \"land_transition\", \"bbox\": [0.3438, 0.4955, 0.5491, 0.6607]}, {\"label\": \"land_transition\", \"bbox\": [0.9062, 0.4598, 0.9955, 0.6964]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.0, 0.1339, 0.1473]}, {\"label\": \"land_transition\", \"bbox\": [0.1562, 0.183, 0.3259, 0.308]}, {\"label\": \"land_transition\", \"bbox\": [0.3616, 0.3482, 0.442, 0.5179]}, {\"label\": \"land_transition\", \"bbox\": [0.4821, 0.8929, 0.5625, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.5134, 0.6562, 0.5804, 0.7366]}, {\"label\": \"land_transition\", \"bbox\": [0.8661, 0.0, 0.9464, 0.0759]}, {\"label\": \"land_transition\", \"bbox\": [0.7143, 0.1696, 0.7812, 0.2545]}, {\"label\": \"land_transition\", \"bbox\": [0.0759, 0.8304, 0.2143, 0.8929]}, {\"label\": \"land_transition\", \"bbox\": [0.0804, 0.5, 0.183, 0.5446]}, {\"label\": \"land_transition\", \"bbox\": [0.2411, 0.2679, 0.2991, 0.3527]}, {\"label\": \"land_transition\", \"bbox\": [0.0446, 0.9643, 0.1384, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.4375, 0.817, 0.5089, 0.8705]}]"}]}], "regions": [{"label": "land_transition", "bbox": [134, 158, 195, 223], "area_px": 1137}, {"label": "land_transition", "bbox": [0, 32, 35, 77], "area_px": 913}, {"label": "land_transition", "bbox": [40, 176, 80, 223], "area_px": 742}, {"label": "land_transition", "bbox": [46, 79, 80, 123], "area_px": 629}, {"label": "land_transition", "bbox": [23, 131, 55, 171], "area_px": 610}, {"label": "land_transition", "bbox": [183, 0, 223, 55], "area_px": 500}, {"label": "land_transition", "bbox": [77, 111, 123, 148], "area_px": 464}, {"label": "land_transition", "bbox": [203, 103, 223, 156], "area_px": 417}, {"label": "land_transition", "bbox": [0, 0, 30, 33], "area_px": 394}, {"label": "land_transition", "bbox": [35, 41, 73, 69], "area_px": 318}, {"label": "land_transition", "bbox": [81, 78, 99, 116], "area_px": 257}, {"label": "land_transition", "bbox": [108, 200, 126, 223], "area_px": 137}, {"label": "land_transition", "bbox": [115, 147, 130, 165], "area_px": 133}, {"label": "land_transition", "bbox": [194, 0, 212, 17], "area_px": 111}, {"label": "land_transition", "bbox": [160, 38, 175, 57], "area_px": 108}, {"label": "land_transition", "bbox": [17, 186, 48, 200], "area_px": 98}, {"label": "land_transition", "bbox": [18, 112, 41, 122], "area_px": 93}, {"label": "land_transition", "bbox": [54, 60, 67, 79], "area_px": 92}, {"label": "land_transition", "bbox": [10, 216, 31, 223], "area_px": 82}, {"label": "land_transition", "bbox": [98, 183, 114, 195], "area_px": 76}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0013"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0014_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0014_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (10209). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0014"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0014_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0014_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.567, 0.0, 0.9286, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.7634, 0.6518, 0.9955, 0.8929]}, {\"label\": \"land_transition\", \"bbox\": [0.6562, 0.4554, 0.8839, 0.6964]}, {\"label\": \"land_transition\", \"bbox\": [0.3482, 0.7054, 0.6205, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.3527, 0.1071, 0.5491]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.7946, 0.1071, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.125, 0.4955, 0.2991, 0.6607]}, {\"label\": \"land_transition\", \"bbox\": [0.1116, 0.3482, 0.192, 0.5179]}, {\"label\": \"land_transition\", \"bbox\": [0.2321, 0.8929, 0.3125, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.2679, 0.6562, 0.3304, 0.7321]}, {\"label\": \"land_transition\", \"bbox\": [0.6161, 0.0, 0.6964, 0.0759]}, {\"label\": \"land_transition\", \"bbox\": [0.4643, 0.1696, 0.5312, 0.2545]}, {\"label\": \"land_transition\", \"bbox\": [0.1875, 0.817, 0.2589, 0.8973]}, {\"label\": \"land_transition\", \"bbox\": [0.7366, 0.8616, 0.8036, 0.9241]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.2679, 0.0491, 0.3571]}, {\"label\": \"land_transition\", \"bbox\": [0.125, 0.8214, 0.1696, 0.8884]}, {\"label\": \"land_transition\", \"bbox\": [0.2009, 0.7411, 0.25, 0.8214]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.2188, 0.0759, 0.2679]}, {\"label\": \"land_transition\", \"bbox\": [0.9598, 0.875, 0.9955, 0.9107]}, {\"label\": \"land_transition\", \"bbox\": [0.1473, 0.8571, 0.183, 0.9107]}]"}]}], "regions": [{"label": "land_transition", "bbox": [127, 0, 208, 58], "area_px": 1478}, {"label": "land_transition", "bbox": [171, 146, 223, 200], "area_px": 1243}, {"label": "land_transition", "bbox": [147, 102, 198, 156], "area_px": 1164}, {"label": "land_transition", "bbox": [78, 158, 139, 223], "area_px": 1137}, {"label": "land_transition", "bbox": [0, 79, 24, 123], "area_px": 523}, {"label": "land_transition", "bbox": [0, 178, 24, 223], "area_px": 510}, {"label": "land_transition", "bbox": [28, 111, 67, 148], "area_px": 435}, {"label": "land_transition", "bbox": [25, 78, 43, 116], "area_px": 256}, {"label": "land_transition", "bbox": [52, 200, 70, 223], "area_px": 139}, {"label": "land_transition", "bbox": [60, 147, 74, 164], "area_px": 125}, {"label": "land_transition", "bbox": [138, 0, 156, 17], "area_px": 111}, {"label": "land_transition", "bbox": [104, 38, 119, 57], "area_px": 108}, {"label": "land_transition", "bbox": [42, 183, 58, 201], "area_px": 98}, {"label": "land_transition", "bbox": [165, 193, 180, 207], "area_px": 91}, {"label": "land_transition", "bbox": [0, 60, 11, 80], "area_px": 89}, {"label": "land_transition", "bbox": [28, 184, 38, 199], "area_px": 65}, {"label": "land_transition", "bbox": [45, 166, 56, 184], "area_px": 61}, {"label": "land_transition", "bbox": [0, 49, 17, 60], "area_px": 57}, {"label": "land_transition", "bbox": [215, 196, 223, 204], "area_px": 57}, {"label": "land_transition", "bbox": [33, 192, 41, 204], "area_px": 54}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0014"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0015_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0015_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-14 and 2025-07-27) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (9247). 20 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0015"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00002_t0015_t0.png"}, {"type": "image", "image": "images/landshift_00002_t0015_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.317, 0.0, 0.6786, 0.2589]}, {\"label\": \"land_transition\", \"bbox\": [0.5134, 0.6518, 0.8348, 0.8929]}, {\"label\": \"land_transition\", \"bbox\": [0.4062, 0.4554, 0.6339, 0.6964]}, {\"label\": \"land_transition\", \"bbox\": [0.0982, 0.7054, 0.3705, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.7946, 0.1027, 0.9955, 0.2411]}, {\"label\": \"land_transition\", \"bbox\": [0.8125, 0.0, 0.9955, 0.1205]}, {\"label\": \"land_transition\", \"bbox\": [0.7098, 0.8705, 0.8259, 0.9509]}, {\"label\": \"land_transition\", \"bbox\": [0.0134, 0.6562, 0.0804, 0.7366]}, {\"label\": \"land_transition\", \"bbox\": [0.2143, 0.1562, 0.2812, 0.2545]}, {\"label\": \"land_transition\", \"bbox\": [0.3661, 0.0, 0.4464, 0.0759]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.4955, 0.0491, 0.5625]}, {\"label\": \"land_transition\", \"bbox\": [0.0, 0.8929, 0.0625, 0.9598]}, {\"label\": \"land_transition\", \"bbox\": [0.4866, 0.8616, 0.5536, 0.9241]}, {\"label\": \"land_transition\", \"bbox\": [0.3705, 0.0625, 0.4152, 0.1161]}, {\"label\": \"land_transition\", \"bbox\": [0.3304, 0.0, 0.3616, 0.0491]}, {\"label\": \"land_transition\", \"bbox\": [0.933, 0.0402, 0.9688, 0.0804]}, {\"label\": \"land_transition\", \"bbox\": [0.567, 0.9062, 0.6384, 0.9375]}, {\"label\": \"land_transition\", \"bbox\": [0.8795, 0.4241, 0.9062, 0.4643]}, {\"label\": \"land_transition\", \"bbox\": [0.3348, 0.2768, 0.3884, 0.317]}, {\"label\": \"land_transition\", \"bbox\": [0.9062, 0.3527, 0.9732, 0.3929]}]"}]}], "regions": [{"label": "land_transition", "bbox": [71, 0, 152, 58], "area_px": 1478}, {"label": "land_transition", "bbox": [115, 146, 187, 200], "area_px": 1382}, {"label": "land_transition", "bbox": [91, 102, 142, 156], "area_px": 1164}, {"label": "land_transition", "bbox": [22, 158, 83, 223], "area_px": 1146}, {"label": "land_transition", "bbox": [178, 23, 223, 54], "area_px": 393}, {"label": "land_transition", "bbox": [182, 0, 223, 27], "area_px": 312}, {"label": "land_transition", "bbox": [159, 195, 185, 213], "area_px": 189}, {"label": "land_transition", "bbox": [3, 147, 18, 165], "area_px": 133}, {"label": "land_transition", "bbox": [48, 35, 63, 57], "area_px": 115}, {"label": "land_transition", "bbox": [82, 0, 100, 17], "area_px": 111}, {"label": "land_transition", "bbox": [0, 111, 11, 126], "area_px": 106}, {"label": "land_transition", "bbox": [0, 200, 14, 215], "area_px": 96}, {"label": "land_transition", "bbox": [109, 193, 124, 207], "area_px": 91}, {"label": "land_transition", "bbox": [83, 14, 93, 26], "area_px": 48}, {"label": "land_transition", "bbox": [74, 0, 81, 11], "area_px": 41}, {"label": "land_transition", "bbox": [209, 9, 217, 18], "area_px": 41}, {"label": "land_transition", "bbox": [127, 203, 143, 210], "area_px": 39}, {"label": "land_transition", "bbox": [197, 95, 203, 104], "area_px": 38}, {"label": "land_transition", "bbox": [75, 62, 87, 71], "area_px": 37}, {"label": "land_transition", "bbox": [203, 79, 218, 88], "area_px": 37}], "metadata": {"event_id": "landshift_00002", "profile": "landshift", "tile_stem": "landshift_00002_t0015"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0000_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0000_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0000"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0001_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0001_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0001"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0002_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0002_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0002"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0003_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0003_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0003"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0004_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0004_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0004"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0005_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0005_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0005"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0006_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0006_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0006"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0007_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0007_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0007"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0008_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0008_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0008"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0009_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0009_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0009"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0010_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0010_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0010"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0011_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0011_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "No dominant land-cover transitions are detected above threshold. Observed differences may be minor seasonal or acquisition variations."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0011"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0012_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0012_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (203). 2 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0012"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0012_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0012_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.9509, 0.9688, 0.9821, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.8661, 0.9643, 0.9018, 0.9866]}]"}]}], "regions": [{"label": "land_transition", "bbox": [213, 217, 220, 223], "area_px": 22}, {"label": "land_transition", "bbox": [194, 216, 202, 221], "area_px": 20}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0012"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0013_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0013_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (263). 3 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0013"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0013_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0013_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.9509, 0.9688, 0.9643, 0.9911]}, {\"label\": \"land_transition\", \"bbox\": [0.7009, 0.9688, 0.7321, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.6161, 0.9643, 0.6518, 0.9866]}]"}]}], "regions": [{"label": "land_transition", "bbox": [213, 217, 216, 222], "area_px": 23}, {"label": "land_transition", "bbox": [157, 217, 164, 223], "area_px": 22}, {"label": "land_transition", "bbox": [138, 216, 146, 221], "area_px": 20}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0013"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0014_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0014_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (311). 3 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0014"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0014_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0014_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.7009, 0.9688, 0.7143, 0.9911]}, {\"label\": \"land_transition\", \"bbox\": [0.4509, 0.9688, 0.4821, 0.9955]}, {\"label\": \"land_transition\", \"bbox\": [0.3661, 0.9643, 0.4018, 0.9866]}]"}]}], "regions": [{"label": "land_transition", "bbox": [157, 217, 160, 222], "area_px": 23}, {"label": "land_transition", "bbox": [101, 217, 108, 223], "area_px": 22}, {"label": "land_transition", "bbox": [82, 216, 90, 221], "area_px": 20}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0014"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0015_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0015_t1.png"}, {"type": "text", "text": "Compare these two Sentinel-2 images (2025-06-29 and 2025-08-13) and describe major land-cover transitions."}]}, {"role": "assistant", "content": [{"type": "text", "text": "Major land-cover transitions are: vegetation_shift (263). 3 region(s) were localized for grounding in this pair."}]}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0015"}}
{"messages": [{"role": "system", "content": [{"type": "text", "text": "You are a geospatial analyst specializing in satellite imagery interpretation. Analyze the provided Sentinel-2 satellite images and report findings grounded in visible evidence. Use [x1, y1, x2, y2] bounding boxes normalized to 0-1 relative to image dimensions. This is optical-only observation. Avoid certainty claims beyond visible evidence, and state confidence and limitations where appropriate."}]}, {"role": "user", "content": [{"type": "image", "image": "images/landshift_00006_t0015_t0.png"}, {"type": "image", "image": "images/landshift_00006_t0015_t1.png"}, {"type": "text", "text": "Locate major land-cover transition regions and return JSON list with labels and normalized bboxes."}]}, {"role": "assistant", "content": [{"type": "text", "text": "[{\"label\": \"land_transition\", \"bbox\": [0.4509, 0.9688, 0.4643, 0.9911]}, {\"label\": \"land_transition\", \"bbox\": [0.1161, 0.9643, 0.1518, 0.9866]}, {\"label\": \"land_transition\", \"bbox\": [0.2054, 0.9688, 0.2321, 0.9955]}]"}]}], "regions": [{"label": "land_transition", "bbox": [101, 217, 104, 222], "area_px": 23}, {"label": "land_transition", "bbox": [26, 216, 34, 221], "area_px": 20}, {"label": "land_transition", "bbox": [46, 217, 52, 223], "area_px": 19}], "metadata": {"event_id": "landshift_00006", "profile": "landshift", "tile_stem": "landshift_00006_t0015"}}