DEM items with no support for datetime filter

A request for data inside the available DEM collections could return results not matching the datetime filter.

For example, the following request:

https://hda.data.destination-earth.eu/stac/collections/EO.DEM.DAT.COP-DEM_GLO-30-DGED/items?limit=10&datetime=2024-06-01T00:00:00Z/2024-06-01T01:00:00Z

will return results outside of the specified datetime range.

If the provider parameter is not specified, HDA searches through all available data providers in a cascading manner. What happens next, will depend on the capabilities of the data provider.

In the example above, there is no item matching the provided datetime filter in CREODIAS data provider. The request then fallbacks to WEkEO data provider.

However, DEM items with WEkEO do not support a datetime filter but only the bbox/geometry filter. So, when requesting a DEM dataset with provider WEkEO, the datetime filter is ignored and all the products are returned.

A suggestion is to use a specific provider in the request (dedl and creodias support the datetime filter).

For example:

https://hda.data.destination-earth.eu/stac/collections/EO.DEM.DAT.COP-DEM_GLO-30-DGED/items?limit=10&datetime=2024-06-01T00:00:00Z/2024-06-01T01:00:00Z&provider=dedl