How to start with lower soil moisture

[jinmuluo]

Hi,

I'm using the compset "I2000Clm51BgcCrop" and I'm wondering where I can change the initial condition for the soil moisture (etc reduce the water to half).

Best,

Jinmu Luo

 

[slevis]

Your initial/restart file should contain the variables H2OSOI_LIQ and H2OSOI_ICE and the model should read those when initializing. Brainstorming very quickly, I think that you could modify the variables in the file, or you could modify the variables as soon as they get read by the model. You may find it useful to look through the variables in your initial/restart file in case you find others that you want to change as well.

 

[jinmuluo]

Your initial/restart file should contain the variables H2OSOI_LIQ and H2OSOI_ICE and the model should read those when initializing. Brainstorming very quickly, I think that you could modify the variables in the file, or you could modify the variables as soon as they get read by the model. You may find it useful to look through the variables in your initial/restart file in case you find others that you want to change as well.

Hi sam,

Thank you for your suggestion. Could you tell me where I can find the initial file for my case, Is this initial file public to all users or specific to my case?

JInmu

 

[oleson]

It is the initial file specific to your case. The file specified by "finidat" in your lnd_in file.

 

[jinmuluo]

It is the initial file specific to your case. The file specified by "finidat" in your lnd_in file.

Hi keith,

Thank you for your answer, I can copy, modify this file and redefine the "finidat" address.

 

[oleson]

Yes, you would redefine the location in your user_nl_clm.

 

[jinmuluo]

Yes, you would redefine the location in your user_nl_clm.

Hi,

I used ncap2 command to change the variable values, but after that, CLM didn't recognize this file and asked me to turn on the transient run.
Not sure what happened to that, do you have any idea about this error?
my log file is here.
/glade/derecho/scratch/jinmuluo/webster123kgN/run/lnd.log.3714657.desched1.240305-151456

 

[oleson]

Add this to your user_nl_clm:

use_init_interp = .true.

 

[snowtt]

Add this to your user_nl_clm:

use_init_interp = .true.

Hi oleson, how to modify the "*clm2.r*" file for a given region, the variables stored in it have the coordinate of "column" not the lat, lon.

 

[slevis]

Yes, but note in the same file that there are helpful variables, such as cols1d_lon cols1d_lat that you can use to map from column to lat, lon.