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Water balance issue

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