Copernicus DEM Global 90m
GLO-90 is a Digital Elevation Model that offers global coverage at a resolution of 90 metres. Surface coverage is ~ 149 M km 2
The dataset is presented as a Zarr archive.
How to download the data
The default (and preferred) way to access the data requires accessing the api.earthdatahub.destine.eu domain and a valid API key.
Method 1: quick access
It is possible to include the token directly in the URL.
1import xarray as xr 2 3xr.open_dataset( 4 "https://edh:<your personal access token>@api.earthdatahub.destine.eu/copernicus-dem/GLO-90-v0.zarr", 5 chunks={}, 6 engine="zarr", 7 decode_coords="all", 8 mask_and_scale=False, 9)
Method 2: advanced access
The Python snippet gather the token from a netrc file.
It's required to before running the code snippet below.
1import xarray as xr 2 3xr.open_dataset( 4 "https://api.earthdatahub.destine.eu/copernicus-dem/GLO-90-v0.zarr", 5 storage_options={"client_kwargs":{"trust_env":True}}, 6 chunks={}, 7 engine="zarr", 8 decode_coords="all", 9 mask_and_scale=False, 10)
Variables
| Short Name | Units | Description |
|---|---|---|
dsm | m | altitude over the geoid |