Q&A

• Ice is stuck on the border of the domain (no fluxes), what can I do?

Set parameter exclude_borders_from_iceflow to True

• I see some numerical artifacts (e.g. waves) occurring when modeling glacier evolution, what can I do?

Reduce the CFL parameter

• How to create/modify NetCDF files?

There are many ways to prepare NetCDF files (matlab, python, GIS tools, ...). The NCO toolkit permits easy operations in command lines, e.g.

   ncks -x -v thk file.nc file.nc              # this removes the variable 'thk' from file.nc
   ncks -v usurf file.nc file.nc               # this extracts the variable usurf from file.nc
   ncap2 -h -O -s 'thk=0*thk' file.nc file.nc  # this does operations on file.nc, here force zero thk
   ncrename -v apc,strflowctrl file.nc         # this renames varible apc to strflowctrl in file.nc

• oggm_shop produces error on windows

This is expected, OGGM is not supported on windows, however, modifying the tarfile.py file at line 2677 from name == member_name to name.replace(os.sep, '/') == member_name seems to fix the issue on Windows. Thanks Alexi Morin for proposing this workaround.