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<DIV>Hi All,</DIV>
<DIV> </DIV>
<DIV>I'm posting this email for help about the base potential temperature in the
WRF model (the real-data mode).</DIV>
<DIV> </DIV>
<DIV>Perturbation potential temperature is a standard WRF output
with the name "T".</DIV>
<DIV> </DIV>
<DIV>The total potential temperature is pt0 = T + 300K, as said in the WRF
manual (see "Special WRF Output Variables").</DIV>
<DIV> </DIV>
<DIV>Does it mean that the base state potential temperature is simply 300K? If
so, it immediately suggests a neutral atmosphere with N^2 = 0, where N
is the buoyancy frequency.</DIV>
<DIV> </DIV>
<DIV>In my opinion, the base pt0 should be at least height-dependent, that is,
pt0 = pt0(z).</DIV>
<DIV> </DIV>
<DIV>As the WRF vertical coordinate is not horizontal, it may be the
function of (x,y) also. </DIV>
<DIV> </DIV>
<DIV>Does anyone know about that?</DIV>
<DIV> </DIV>
<DIV>Moreover, the total temperature is diagnosed from the poison equation.
But how to get the base-state temperature (this is actually related to the
base-state pt)?</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Appreciate for any kind help.</DIV>
<DIV> </DIV>
<DIV>Xin</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
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