README.md

generate-ismip7-grid-files-py

Python scripts to generate ISMIP7 grid description files used for CDO regridding.
(The grids did not change since ISMIP6)
See also matlab version of scripts

Setup

Needs a python3 environment with
numpy, netCDF4

Usage

The scripts can generate 3 different types of files for Greenland and Antarctica

grid description files (needed for CDO regridding)

grid_ISMIP7_g?_IS_res.nc

xy coordinates

xy_ISMIP7_g?_IS_res.nc

area factors

af2_ISMIP7_g?_IS_res.nc

All files are produced for the diagnostic grid g1 (ice thickness, SMB, ..)
The scripts can also generate files for a staggered grid g0, where e.g. CISM defines horizontal velocities.

ISMIP7_AIS_multigrid_generator_nc.py
ISMIP7_GrIS_multigrid_generator_nc.py

using

polar_stereo.py
wnc.py