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How do I use interannual variable LAI in CLM5

xiaom

X M
New Member
Hi, the version of the model I'm using is CESM2.1.3, and the compset is FHIST (HIST_CAM60_CLM50%SP_CICE%PRES_DOCN%DOM_MOSART_SGLC_SWAV). I plan to use annually varying LAI in the model. I can provide a 10-year monthly LAI dataset based on other satellite observations, but I found that the variable related to LAI in the surfdata file ('monthly_lai') has a time dimension of time=12, without an option for interannual variation. I'm not sure how to implement the use of interannually varying LAI. Could you give me some suggestions? Or is it that the compset I chose is not suitable?
Looking forward to your reply, thank you.
 

slevis

Moderator
Staff member
Interesting question. You are using the correct compset. I'm not aware of infrastructure in the code to handle this. In case I'm wrong, I'm pinging @wwieder @oleson @erik.

But if I'm correct, then you would need to make modifications to the datasets and the code.
 

slevis

Moderator
Staff member
An inconvenient alternative that does not require modifying code:
You could run one year at a time. Each year you could change the fsurdat file to the one with the new LAI and branch the simulation.
 

oleson

Keith Oleson
CSEG and Liaisons
Staff member
There is an LAI streams capability in CLM5. The default setting is for years 2001-2013. This post may be useful:

 
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