Where can I get the topography data used in the CARRA

Datasets and Usage C3S - Datasets and Usage
1

Hi,

Is it possible to get the elevation/topography data in 2.5km resolution used in the CARRA? I would like to get the difference between CARRA and in-situ observation over Greenland, in which effects by the lapse rate will be considered.

Best regards
Tinghai