{
    "id": "maya4-sar",
    "dataset_version": "1.0.0",
    "description": "Sentinel-1 SAR data with raw, range compression, RCMC, and azimuth compression levels",
    "licenses": [
        "CC-BY-4.0"
    ],
    "providers": [
        {
            "name": "MAYA4 Project",
            "roles": [
                "producer"
            ],
            "url": null,
            "links": null
        }
    ],
    "tasks": [
        "other"
    ],
    "taco_version": "0.5.0",
    "title": "MAYA4 SAR Processing Dataset",
    "curators": null,
    "keywords": [
        "SAR",
        "Sentinel-1",
        "radar",
        "complex",
        "raw"
    ],
    "extent": {
        "spatial": [
            -180.0,
            -90.0,
            180.0,
            90.0
        ],
        "temporal": null
    },
    "taco:pit_schema": {
        "root": {
            "n": 4,
            "type": "FOLDER"
        },
        "hierarchy": {
            "1": [
                {
                    "n": 20,
                    "type": [
                        "FILE",
                        "FILE",
                        "FILE",
                        "FILE",
                        "FILE"
                    ],
                    "id": [
                        "az",
                        "raw",
                        "rc",
                        "rcmc",
                        "pulses"
                    ]
                }
            ]
        }
    },
    "taco:field_schema": {
        "level0": [
            [
                "id",
                "string",
                "Unique sample identifier within parent scope. Must be unique among siblings."
            ],
            [
                "type",
                "string",
                "Sample type discriminator (FILE or FOLDER)."
            ],
            [
                "sar:polarization",
                "string",
                "Polarization mode (HH, VV, HV, VH)"
            ],
            [
                "sar:swath",
                "string",
                "Swath identifier"
            ],
            [
                "sar:orbit",
                "uint32",
                "Orbit number"
            ],
            [
                "sar:tx_ramp_rate",
                "double",
                "Transmit chirp ramp rate (Hz/s)"
            ],
            [
                "sar:tx_pulse_start_freq",
                "double",
                "Transmit pulse start frequency (Hz)"
            ],
            [
                "sar:tx_pulse_length",
                "double",
                "Transmit pulse length (s)"
            ],
            [
                "sar:pri",
                "double",
                "Pulse Repetition Interval (s)"
            ],
            [
                "internal:current_id",
                "int64",
                "Current sample position at this level (0-indexed). Enables O(1) random access and relational JOINs (ZIP, FOLDER, TACOCAT)."
            ],
            [
                "internal:parent_id",
                "int64",
                "Foreign key referencing parent sample position in previous level (ZIP, FOLDER, TACOCAT)."
            ]
        ],
        "level1": [
            [
                "id",
                "string",
                "Unique sample identifier within parent scope. Must be unique among siblings."
            ],
            [
                "type",
                "string",
                "Sample type discriminator (FILE or FOLDER)."
            ],
            [
                "sar:compression_ratio",
                "float",
                "Compression ratio (raw/compressed)"
            ],
            [
                "sar:max_err",
                "float",
                "Maximum error from precision loss"
            ],
            [
                "sar:rmse",
                "float",
                "RMSE from complex128→complex64 conversion"
            ],
            [
                "sar:size_gb",
                "float",
                "Compressed TIFF size in GB"
            ],
            [
                "taco:header",
                "binary",
                "Binary TACOTIFF header (35 bytes + tile counts) for fast reading without IFD parsing"
            ],
            [
                "internal:current_id",
                "int64",
                "Current sample position at this level (0-indexed). Enables O(1) random access and relational JOINs (ZIP, FOLDER, TACOCAT)."
            ],
            [
                "internal:parent_id",
                "int64",
                "Foreign key referencing parent sample position in previous level (ZIP, FOLDER, TACOCAT)."
            ],
            [
                "internal:relative_path",
                "string",
                "Relative path from DATA/ directory. Format: {parent_path}/{id} or {id} for level0 (ZIP, FOLDER, TACOCAT)."
            ]
        ]
    }
}