Adapt ERA5 atmospheric forcing generation scripts #13
Description
ECMWF changed their API. The change in the API results in that the script generation of atmospheric forcing based on ERA5 (mkforcing/download_ERA5.py) does not work properly.
With the new API one get zip-file containing multiple netcdf-files, instead of just getting one netcdf-file. In addition a few adaptions in the naming are needed according to the new API. The forcing script needs to be revised for the new API.