downscaling solar using hillslope

[Fuhow]

Hi, I am now using the newest ctsm5.3.

I found that there is a hill slope downscaling subroutine in atm2lndMod, but I didn't find out how to use the switches：use_hillslope and downscale_hillslope_meteorology.
Is there a way to open this subroutine?

Best,
Hao

 

[slevis]

In the file .../bld/namelist_files/namelist_definition_ctsm.xml you will find simple documentation of these namelist variables.

@samrabin are you aware of more extensive documentation of use_hillslope at this time?

 

[samrabin]

I'm not, no. I've created an issue about it. Some basic information about those variables can be found in namelist_definition_ctsm.xml. The hillslope-related code is in HillslopeHydrologyMod.F90 and HillslopeHydrologyUtilsMod.F90.

We have a hillslope test that has this in the user_nl_clm file:

use_hillslope = .true.
use_hillslope_routing = .true.
downscale_hillslope_meteorology = .false.
hillslope_head_gradient_method = 'Darcy'
hillslope_transmissivity_method = 'LayerSum'
hillslope_pft_distribution_method = 'PftLowlandUpland'
hillslope_soil_profile_method = 'Uniform'

use_ssre = .false.

So if you set up a run like that it should work. Note that you can enable meteorological downscaling with downscale_hillslope_meteorology = .true..

For further information, @swensosc would be the one to ask.