{
  "taco:version": "3.0.0",
  "id": "geoenrich-example",
  "description": "Example collection using the geoenrich extension",
  "licenses": [
    "CC-BY-4.0"
  ],
  "providers": [
    {
      "name": "Asterisk Labs",
      "roles": [
        "producer"
      ]
    }
  ],
  "taco:structure": [
    "image.tif"
  ],
  "taco:metadata": {
    "sample": {
      "stac:geometry": {
        "type": "binary",
        "nullable": true,
        "description": "Footprint in EPSG:4326 as WKB, when the producer supplies one"
      },
      "stac:bbox": {
        "type": "list<double>",
        "nullable": true,
        "description": "Bounds of geometry [west, south, east, north]; west > east crosses the antimeridian"
      },
      "stac:centroid": {
        "type": "struct<lon: float, lat: float>",
        "nullable": false,
        "description": "Center of the grid, or of the footprint without a grid, in EPSG:4326"
      },
      "stac:datetime": {
        "type": "timestamp[us, UTC]",
        "nullable": true,
        "description": "Acquisition time; null when only a range is known"
      },
      "stac:start_datetime": {
        "type": "timestamp[us, UTC]",
        "nullable": true,
        "description": "First time covered by the observation, inclusive"
      },
      "stac:end_datetime": {
        "type": "timestamp[us, UTC]",
        "nullable": true,
        "description": "Last time covered by the observation, inclusive"
      },
      "stac:proj_code": {
        "type": "string",
        "nullable": true,
        "description": "CRS of the grid as AUTHORITY:CODE, e.g. EPSG:32718"
      },
      "stac:proj_shape": {
        "type": "list<int64>",
        "nullable": true,
        "description": "Grid size in pixels as [height, width]"
      },
      "stac:proj_transform": {
        "type": "list<double>",
        "nullable": true,
        "description": "Affine transform [a, b, c, d, e, f]: x = a*column + b*row + c, y = d*column + e*row + f"
      },
      "majortom:code": {
        "type": "string",
        "nullable": false,
        "description": "MajorTOM spherical grid cell identifier at 10 km"
      },
      "geoenrich:elevation": {
        "type": "float",
        "nullable": true,
        "description": "Elevation in metres (Copernicus GLO-30 DEM)"
      },
      "geoenrich:population": {
        "type": "float",
        "nullable": true,
        "description": "Population density in people per km2, 0 over water and Antarctica (GPW v4.11, 2020)"
      },
      "geoenrich:admin_countries": {
        "type": "string",
        "nullable": false,
        "description": "Country name at the centroid, or Ocean/Sea/Lakes"
      }
    },
    "children": {}
  },
  "taco:extensions": [
    "https://asterisk.coop/taco/spec/extensions/geoenrich/v1.0.0/schema.json",
    "https://asterisk.coop/taco/spec/extensions/majortom/v1.0.0/schema.json",
    "https://asterisk.coop/taco/spec/extensions/stac/v1.0.0/schema.json"
  ],
  "majortom:dist_km": 10.0,
  "majortom:extra": {},
  "majortom:latitude_range": [
    -85.0,
    85.0
  ],
  "majortom:longitude_range": [
    -180.0,
    180.0
  ],
  "majortom:sep": "_",
  "majortom:centroid": "stac:centroid",
  "geoenrich:backend": "majortom-index",
  "geoenrich:index_url": "https://data.source.coop/major-tom/index/global.parquet"
}