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Inquiry about Calculating Apparent Heat Source and Moisture Sink in CAM6.0

X

xiaom

X M
New Member
I am currently using the CAM6.0 model and would like to calculate the apparent heat source and moisture sink. From previous discussions on this topic, I found some answers regarding CAM3:

For temperature, the total physics tendency is PTTEND, where:
PTTEND = DTCOND + QRS + QRL + DTV + TTGWORO

For moisture, the total physics tendency is PTEQ, where:
PTEQ = DCQ + VD01 + DMEQ

However, in my model results, I cannot find the variables TTGWORO and DMEQ. Additionally, I noticed that someone mentioned in CAM6, the temperature tendency due to vertical turbulent transport is included in DTCOND, unlike in CAM5 where it was in DTV.

Could you please clarify how to calculate PTTEND and PTEQ in CAM6?

Thank you for your time and assistance.
 
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A

aherring

Adam
Member
Your PTTEND breakdown looks correct to me, but I would replace TTGWORO w/ TTGW, to include non-orographic gravity wave contributions. In CAM6, you're correct that PBL mixing is part of DTCOND (since CLUBB handles moist shallow convection, cloud macrophysics and PBL mixing), whereas in CAM5, PBL mixing is represented by DTV. I think DTV is zero in CAM6, but you could include it just in case.

Your PTEQ breakdown looks correct as well. The DMEQ term is comparatively small, and it's not even used in the SE dycore.
 
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