Runing Bgc-Crop mode with CRUJRA forcing data

[Fuhow]

Hi, I am going to run a BGC-crop case from 2000 to 2024. Since the last GSWP3 forcing data is 2014, and I found the latest atm date is 2023-12-31 for CRUJRA (- Revision 70330: /trunk/inputdata/glade/campaign/cesm/cesmdata/inputdata/atm/datm7/atm_forcing.datm7.CRUJRA.0.5d.c20241231/inputs/three_stream). So, I am trying to use CRUJRA in BGC_Crop mode.

My question are as follows:

1. BGC-crop mode is essential for my study, and I was wondering whether CRUJRA forcing data is suitable for this mode.
2. How can I direct DATM_MODE to CRUNJRA.

Many thanks for your reply!

Hao

 

[slevis]

It is suitable, but you need to make the necessary changes yourself because we do not support this, yet. If you were to download a recent CTSM development tag (e.g. the latest one) you would find that we have made it easier to select CRUJRA because in the next clm release we plan to make this the default.

 

[Fuhow]

It is suitable, but you need to make the necessary changes yourself because we do not support this, yet. If you were to download a recent CTSM development tag (e.g. the latest one) you would find that we have made it easier to select CRUJRA because in the next clm release we plan to make this the default.

Hi @slevis,
I am currently using ctsm 5.3, but I didn't find any setting related to CRUJRA in env_run.xml file.



I noticed that Maria successfully loaded CRUJRA in a BGC mode case by modifying user_nl_datm and user_nl_datm_stream (CRUJRA Atmospheric Forcing Data for CLM5).

Yet, I haven't find any reference files for using CRUJRA. I would really appreciated it if you share some reference file for this issue, such as user_nl_datm and user_nl_datm_streams.

Looking forward to your reply!

Hao

 

[slevis]

Since you're in clm5.3, try this "grep" command to find references to crujra:
git grep -i cruj
In cime_config/config_compsets.xml you should see compsets that use the CRUJRA data. I would start creating new cases using some of these compsets that you find appropriate for your work.

 

[Fuhow]

Since you're in clm5.3, try this "grep" command to find references to crujra:
git grep -i cruj
In cime_config/config_compsets.xml you should see compsets that use the CRUJRA data. I would start creating new cases using some of these compsets that you find appropriate for your work.

Hi @slevis ,

Thanks for your reply.

As before, I didn't find any compset about CRUJRA in my version when using grep.
After recloning the newest CTSM version, these CRUJRA compsets do exist.

Many thanks for your help!

Hao