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CTSM resolution problem

maruf2812

Montasir Maruf
Member
I was trying to run CTSM cases and looking for 27 km resolution model. I tried this one (./create_newcase --case /glade/u/home/maruf/CLM_test4 --compset I2000Ctsm50NwpBgcCropGswp --res f10_f10_musgs) and found the resolution is very low. Since f10_f10 is not working for me, what can I change for 27 km resolution model run.

Thank you!!
 

aherring

Adam
New Member
Your best bet is to try ne120pg3_ne120pg3_mt13, but I can't be certain that it will work. This grid alias pertains to the 1/4 degree spectral-element unstructured grid. What code base are you running?
 

maruf2812

Montasir Maruf
Member
I was trying to run the cases offline. In that case which resolution should I use to get 27 km domain?
 

oleson

Keith Oleson
CSEG and Liaisons
Staff member
I don't think that 27 km grid is supported in offline mode, but I'll ask someone to check on that.
 

maruf2812

Montasir Maruf
Member
Hi @negins thank you for your reply. In that case can we use some other grid options close to 27 km. Our goal is to build high resolution model for whole USA. Can we use NLDAS-2 grid over the U.S which is 0.125 degree resolution. I have attached the screenshot.

Capture.JPG
 

oleson

Keith Oleson
CSEG and Liaisons
Staff member
I tried this with cesm2.2.0:

--compset I2000Ctsm50NwpSpGswp --res nldas2_rnldas2_mnldas2

and that ran for 1 month.
There doesn't appear to be an nldas2 surface dataset for the BgcCrop version of this compset (I2000Ctsm50NwpBgcCropGswp) so you'd have to create one.
You can create one using:

./mksurfdata.pl -res 0.125nldas2 -y 2000
 

maruf2812

Montasir Maruf
Member
@oleson thank your kind help. After executing the command ./mksurfdata.pl -res 0.125nldas2 -y 2000 the following error showed up. Could you please enlighten me with some ideas what I need to change?
 

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maruf2812

Montasir Maruf
Member
Hi @oleson thank you for the help. It's working now!! Can we use NLDAS forcing and BGC to create this following case: --compset I2000Ctsm50NwpBgcCropNldas --res nldas2_rnldas2_mnldas2
 

oleson

Keith Oleson
CSEG and Liaisons
Staff member
That compset shortname doesn't exist.
You can see available clm compsets using:
./query_config --compsets clm

However, you could pick a compset that is close to what you want (I2000Ctsm50NwpBgcCropNldas) and modify its longname:

2000_DATM%NLDAS2_CLM50%NWP-SP_SICE_SOCN_MOSART_SGLC_SWAV_SIAC_SESP

in your create_newcase command:

--compset 2000_DATM%NLDAS2_CLM50%NWP-BGC-CROP_SICE_SOCN_MOSART_SGLC_SWAV_SIAC_SESP
 

maruf2812

Montasir Maruf
Member
Hi @oleson, I appreciate your kind support. I tried with the newcase (--compset 2000_DATM%NLDAS2_CLM50%NWP-BGC-CROP_SICE_SOCN_MOSART_SGLC_SWAV_SIAC_SESP) and this error showed up during case build. Do I need to again create the surface data?

Capture.JPG
 

oleson

Keith Oleson
CSEG and Liaisons
Staff member
You need to tell the model where to find the surface dataset you made and what the name is of that dataset.
Add this into your user_nl_clm in your case directory:

fsurdat = 'YOUR_SURFACE_DATASET'
 

oleson

Keith Oleson
CSEG and Liaisons
Staff member
The exclamation point in front of the statement means that it will be interpreted as a comment.
Put it below this lower line without an exclamation point in front of it:

!-------------------------------------------------------------------------------------------

If you haven't already, I recommend you take a look at the CTSM Tutorial material:


And more broadly the CESM tutorial material and the CESM Distance Learning Course:

 
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