Downloading
The download interface is implemented following the Web Coverage Service (WCS) as well as the Download Service for Earth Observation Products Best Practice (DSEO) standards.
These interfaces support both, the simple download of entire products via DSEO
as well as flexible customized downloads via WCS. Both services can be accessed
at the path /ows?.
The WCS offers the following customizations in order to optimize downloads and minimize unnecessarily used bandwidth:
Meaningful default configuration
Spatial subset to retrieve only the geographic area of interest
Range subset to retrieve only the band(s) of interest
Scaling to required resolution
Format selection
Interpolation selection if needed
Projection selection
Note that the download size in WCS is restricted in order to not block the service. Clients are advised to download bigger coverages in chunks and put them together afterwards.
Another method of downloading the data is via a service
proxying requests to the readily available COGs on object storage.
The service supports HTTP range requests in order to allow clients
to optimally exploit the capabilities of COGs and is reachable on endpoint /http/storage
The final chapter Sample Service Requests holds a list of sample requests against the various services described in this user guide.