Water balance issue

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mizukami

New Member
Hi,
I have two questions.  I thought those are related, so post them together.    I am checking water balance manually annual and daily scale from outputs of fluxes/states based on BalanceCheckMod.F90 (and eq. page 117 on CLM technical note).  I never get water balance errors similar to ERRH20 computed by CLM. I wonder why. because I am getting larger water balance error, I started looking in more detail, and I found some negative evapotranspiration (QSOIL and QVEGE).  I am not sure what that mean. Is it physically reasonable?  I checked Latent heat flux, and have both sign, so does it mean getting dew?  Does it cause large some water balance error?   To close water balance, do I need to include dew?
thanks in advance for any hints. naoki  

 

slevis

Moderator
Staff member
Yes, negative values represent dew formation and should generally be small and more likely at night.Sam Levis 
 
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