Loading a collection that has items with distinct CRSs

[leotizzei]

Hi everyone,

It is not clear to me what should be the expected CRS of the datacube that is returned by load_collection process. Is it the CRS that is specified by the cube:dimension field of the collection metadata (see https://github.com/stac-extensions/datacube/tree/main#horizontal-spatial-raster-dimension-object) ? If the items that are part of a given collection have multiple reference systems, should openEO service reproject them to the reference system specified in cube:dimension at the collection level? If so, the CRS that is part of the spatial_extent parameter (see https://processes.openeo.org/#load_collection) defines only the reference system of the bounding box (west, east, south, north) and not the reference system of the datacube that is returned, right?

Thanks!

[soxofaan]

Just a quick comment to point you to https://openeo.org/documentation/1.0/datacubes.html#coordinate-reference-system-as-a-dimension which hopefully already clarifies some aspects of your question