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id: sea_ice
type: element
name: Sea ice
task_types: [semantic_segmentation, classification, change_detection]
preferred_heads: [validity, context, semantic_segmentation, change_detection]
label_formats: [mask, polygon, image_label]
positive_label: sea_ice
negative_policy: unlabeled_is_ignore
typical_sensors: [SAR, MSI, OLI]
typical_resolutions_m: [10, 30]
---
# Sea Ice
Sea ice can be mapped from optical or SAR data, but the feature appearance changes
with sensor, illumination, weather, and season.
## Required Context
- Clouds, snow, bright land, and sea ice must not be collapsed into one class.
- Sensor-specific normalization and augmentations are required.
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