Skip to content

degenerate geometries in clms_lst-tci_global_3km_10daily_v3_cog metadata #13

Description

@soxofaan

(not sure if this is the best place to report this, so feel free to refer to a better place)

The STAC items from https://stac.dataspace.copernicus.eu/v1/collections/clms_lst-tci_global_3km_10daily_v3_cog seem to have degenerate geoemetries, causing broken spatial filtering in STAC API requests.

for example, STAC API request with a simple bbox around lon=3,lat=50:
https://stac.dataspace.copernicus.eu/v1/search?limit=100&bbox=3.0%2C50.0%2C3.1%2C50.1&datetime=2025-09-01T00%3A00%3A00Z%2F2025-09-09T23%3A59%3A59.999000Z&collections=clms_lst-tci_global_3km_10daily_v3_cog
returns 0 matches

removing the bbox parameter returns 1 match: https://stac.dataspace.copernicus.eu/v1/search?limit=100&datetime=2025-09-01T00%3A00%3A00Z%2F2025-09-09T23%3A59%3A59.999000Z&collections=clms_lst-tci_global_3km_10daily_v3_cog

which contains item https://stac.dataspace.copernicus.eu/v1/collections/clms_lst-tci_global_3km_10daily_v3_cog/items/c_gls_LST10-TCI_202509010000_GLOBE_GEO_V3.0.1_cog

which has this bbox and geometry:

  "bbox":[-179.9999999,-79.97868240000001,179.9999999,80.0233214],
  "geometry": {
    "type": "MultiPolygon",
    "coordinates": [
      [
        [
          [-1e-8, 80.0233214],
          [-1e-8, 80.0223214],
          [-0.0111564000000044, 80.0223214],
          [-179.9999999, 80.0223214],
          [-179.9999999, 80.0233214],
          [-1e-8, 80.0233214]
        ]
      ],
      [
        [
          [-179.9999999, -79.97868240000001],
          [-179.9999999, -79.9776824],
          [-0.0111564000000044, -79.9776824],
          [-1e-8, -79.9776824],
          [-1e-8, -79.97868240000001],
          [-179.9999999, -79.97868240000001]
        ]
      ],
      [
        [
          [179.9999999, 80.0233214],
          [179.9999999, -79.97868240000001],
          [1e-8, -79.97868240000001],
          [1e-8, -79.9776824],
          [179.9776872, -79.9776824],
          [179.9776872, 80.0223214],
          [1e-8, 80.0223214],
          [1e-8, 80.0233214],
          [179.9999999, 80.0233214]
        ]
      ]
    ]
  }

which looks like this (a multipolygon of three razor-thin polygons):

Image

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions