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20020326: Formulation of moisture divergence in gempak

  • Subject: 20020326: Formulation of moisture divergence in gempak
  • Date: Wed, 27 Mar 2002 13:12:53 -0700
>From: Chris Hennon <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200203261622.g2QGMva03124

>Steve -
>
>I am using gfunc = sdiv(mixr(dwpc,pres),wnd) to compute moisture
>divergence at a level. I am trying to find a mathematical representation
>that shows how gempak computes this, 

Appendix B1:
$NAWIPS/doc/User_guide/pdf
or
http://www.unidata.ucar.edu/packages/gempak/GEMPAK5.6/doc/pdf/


>and the units of the result (g/kg
>s^-1?).  Can you give me a formulation or tell me where to look?  Thanks.


Computation of SDIV:
$GEMPAK/source/gemlib/dv/dvsdiv.f

Computation of MIXR in g/g:
$GEMPAK/source/gemlib/pd/pdmixr.f

Scaling of MIXR grid to g/kg:
$GEMPAK/source/gemlib/dg/dggrid.f



>
>Chris
>
>


Steve Chiswell