Search

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search(aoi, products=None, start_datetime=None, end_datetime=None, cloud_fraction=None, limit=100, sort_field=None, sort_order='asc', date_field='acquired', query=None, randomize=False, raster_client=None, metadata_client=None)

Search for Scenes in the Descartes Labs catalog.

Returns a SceneCollection of Scenes that overlap with an area of interest, and meet the given search criteria.

Parameters:

• aoi (GeoJSON-like dict, GeoContext, or object with __geo_interface__) – Search for scenes that intersect this area by any amount. If a GeoContext, a copy is returned as ctx, with missing values filled in. Otherwise, the returned ctx will be an AOI, with this as its geometry.
• products (str or List[str], optional) – Descartes Labs product identifiers
• start_datetime (str, datetime-like, optional) – Restrict to scenes acquired after this datetime
• end_datetime (str, datetime-like, optional) – Restrict to scenes acquired before this datetime
• cloud_fraction (float, optional) – Restrict to scenes that are covered in clouds by less than this fraction (between 0 and 1)
• limit (int or None, optional, default 100) – Maximum number of Scenes to return, or None for all results.
• sort_field (str, optional) – Field name in Scene.properties by which to order the results
• sort_order (str, optional, default 'asc') – "asc" or "desc"
• date_field (str, optional, default 'acquired') – The field used when filtering by date ("acquired", "processed", "published")
• query (descarteslabs.common.property_filtering.Expression, optional) – Expression used to filter Scenes by their properties, built from dl.properties. Example value: 150 < dl.properties.azimuth_angle < 160 & dl.properties.cloud_fraction < 0.5
• randomize (bool, default False, optional) – Randomize the order of the results. You may also use an int or str as an explicit seed.
• raster_client (Raster, optional) – Unneeded in general use; lets you use a specific client instance with non-default auth and parameters.
• metadata_client (Metadata, optional) – Unneeded in general use; lets you use a specific client instance with non-default auth and parameters.

Returns:

• scenes (SceneCollection) – Scenes matching your criteria.

• ctx (GeoContext) – The given aoi as a GeoContext (if it isn’t one already), with reasonable default parameters for loading all matching Scenes.

  If aoi was a GeoContext, ctx will be a copy of aoi, with any properties that were None assigned the defaults below.

  If aoi was not a GeoContext, an AOI instance will be created with aoi as its geometry, and defaults assigned as described below:

  Default Spatial Parameters:

  • resolution: the finest resolution of any band of all matching scenes
  • crs: the most common CRS used of all matching scenes