ldb         Pressure at cloud base from RAS

</PRE>
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<A NAME="CHANGES">
<HR>
<H4>CHANGE HISTORY</H4>
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<PRE>
<B><A HREF=".doc.log#ras.f90">Revision history</A></B>


<b>changes</b> (10/4/1999)

     MPP version created. Minor changes for open_file, error_mesg,
     and Fortran write statements. Answers should reproduce the
     previous version.

<b>changes</b> (8/31/1999)

    Code is 