[RegCNET] Dry bias in RegCM4-CLM4.5

[Matthew Wozniak]

Hello RegCM community!

I need a bit of help. While running RegCM4.6 coupled to CLM4.5, whether it
is Tiedtke, Emanuel or Grell, there is a dry bias in my the United States
(CONUS) domain, particularly over the eastern portion of the continent and
especially over summer (we are seeing a dry bias in summer of ~50%. Default
parameters are used in all cases. We have been able to reproduce observed
precipitation better in Tiedtke by increasing the autoconversion
coefficient and decreasing the below-cloud evaporation coefficient...
however, I am curious if anybody else has had this problem, and what they
have done to solve it.

Productive information about this issue would be much appreciated!

Best,

Matt



-- 
Matthew Wozniak
Ph.D. Candidate
Department of Atmospheric, Oceanic and Space Sciences
University of Michigan
412-260-2263 <(412)%20260-2263>

Personal: https://sites.google.com/a/umich.edu/matthew-wozniak/
Group: http://aoss-research.engin.umich.edu/faculty/steiner/
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