How to Combine Sunlit and Shaded Leaf Stomatal Conductance into Total Canopy Stomatal Conductance (gs)?

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pengzhou

peng zhou
Member
Dear Scientists,


In my CTSM SP-mode simulations, I have obtained separate stomatal conductance values for sunlit and shaded leaves. I would like to understand how to combine these two values into a single total canopy stomatal conductance (gs). Could you kindly clarify the method used in CTSM for combining the stomatal conductance values of sunlit and shaded leaves? Is it simply a matter of adding them together, or is there a specific calculation involved?


Thank you for your help!


Best regards,
Peng
 
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pengzhou

peng zhou
Member
slevis said:
@pengzhou I searched for "sunlit" in the clm Technote and found a few things that may help you:

First, I see in history that we output FSUN and FSHA, which are the sunlit and shaded canopy fractions. The other links that came up give details that I think you will find useful in your work.
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Thank you very much for your help and for pointing me to the CLM technical note.
 
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