The definition of clm's 'sand' and 'clay' variables in wrf

[youhq]

Dear all,
I try to add a new variable to the clm of wrf, called 'rock', which will work together with 'sand' and 'clay' in the parameterization.
In wrf, the module_sf_clm.F file contains all the modules of clm. I need to define 'rock' in it and refer to the existing 'sand' and 'clay'.
I found this code in the module clm_varcon:
##############################################
real(r8) :: sand(19) ! percent sand
real(r8) :: clay(19) ! percent clay
integer :: soic(19)

integer, allocatable :: plant(:,:)
real(r8),allocatable :: cover(:,:)

data(sand(i), i=1,19)/92.,80.,66.,20.,5.,43.,60.,&
10.,32.,51., 6.,22.,39.7,0.,100.,54.,17.,100.,92./
data(clay(i), i=1,19)/ 3., 5.,10.,15.,5.,18.,27.,&
33.,33.,41.,47.,58.,14.7,0., 0., 8.5,54., 0., 3./
data(soic(i), i=1,19)/1,2,2,3,3,4,5,5,6,7,7,8,8,0,&
1,1,4,7,1/

! soil type from MM5
! (1) sand
! (2) loamy-sand
! (3) sandy-loam
! (4) silt-loam
! (5) silt
! (6) loam
! (7) sandy-clay-loam
! (8) silty-clay-loam
.........
! (17) playa
! (18) lava
! (19) white-sand
#############################################
It should mean the percentage content of 'sand' and 'clay' in the 19 land types?
As far as I know, 'sand' and 'clay' should have 10 levels of content in clm, not the above form. So is clm in wrf simplified?

 

[oleson]

Where did you obtain the wrf-clm version you are using? We don't support wrf-clm other than the wrf-ctsm coupling through lilac:

3.4.1. Using CTSM with WRF — ctsm CTSM master documentation

escomp.github.io

 

[youhq]

Where did you obtain the wrf-clm version you are using? We don't support wrf-clm other than the wrf-ctsm coupling through lilac:

3.4.1. Using CTSM with WRF — ctsm CTSM master documentation

escomp.github.io

hi, I use the normal WRF-4.1.2 version, I just set sf_surface_physics = 5 to use clm as the land surface mode. Is there any help that can be given to me regarding this wrf version of clm?
I don’t know much about CTSM, would you suggest me to use it?

 

[oleson]

I believe WRF-4.1.2 has an older version of CLM (CLM4.0). We've discontinued support for CLM4 here anyway. You should direct your questions to WRF support.

The WRF-CTSM version I mentioned uses CLM5.0. CLM is essentially an instantiation of CTSM (Community Terrestrial Systems Model), which is the land surface model used in CESM (Community Earth System Model) (see GitHub - ESCOMP/CTSM: Community Terrestrial Systems Model (includes the Community Land Model of CESM)). The version of CLM5.0 in WRF is somewhat simplified for NWP applications.

 

[youhq]

I believe WRF-4.1.2 has an older version of CLM (CLM4.0). We've discontinued support for CLM4 here anyway. You should direct your questions to WRF support.

The WRF-CTSM version I mentioned uses CLM5.0. CLM is essentially an instantiation of CTSM (Community Terrestrial Systems Model), which is the land surface model used in CESM (Community Earth System Model) (see GitHub - ESCOMP/CTSM: Community Terrestrial Systems Model (includes the Community Land Model of CESM)). The version of CLM5.0 in WRF is somewhat simplified for NWP applications.

Thank you for your suggestion.