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Moist Static Energy Equation and the Gross Moist Stability

The moist static energy equation is

  equation928

where the gross moist stability

  equation935

acts as an effective stability for the system in moist regions. Note that tex2html_wrap_inline2001 , the vertical velocity profile corresponding to the velocity profile tex2html_wrap_inline1973 , is given by (gif).

We have specified nothing about the convective closure on moisture so far, only aspects of the closure on temperature. In convective regions, all that is needed from the convective closure for (gif) is the vertical mean moisture and surface moisture (related to tex2html_wrap_inline1573 and the large scale circulation). Thus the essence of the model does not place any demands on the particulars of the convective closure on moisture, nor on the numerical treatment of moisture.



Johnny Wei-Bing Lin
Thu Sep 9 13:11:12 PDT 1999