Hi Stuart,
A development model problem. I am not sure this will solve your issues
completely, but can you try adding SurfaceDummy at the start of your
iy_surface_agenda?
The new variables you are seeing are part of a method Patrick is working on
for calculating the Jacobian of surface features.
I'm currently trying to use the ARTS version of FASTEM via iySurfaceFastem in
iy_surface_agenda. This used to work, but on the latest version of the ARTS
trunk (2.3.1146) it fails with:
Run-time error in method: AgendaSet
The agenda iy_surface_agenda must generate the output WSV dsurface_rmatrix_
