Hi, <br><br>I have asked a similar question a few days ago. Here is the answer provided by Jeff Duda: <br><br>-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
The pressure gradient is simply 1/rho * del(p), where del(p) is the
gradient operator, which can be displayed in Grads using the
mathematical decomposition of the gradient operator (i.e., derivatives
in the x- and y-directions). Use cdiff for those derivatives. Note,
you'll have to define your x- and y- grid spacing values as well. See
the examples on the <a href="http://www.iges.org/grads/gadoc/gradfunccdiff.html" target="_blank">cdiff help page</a> for how to do that.<br>
<br>Jeff Duda<br>-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
<br>Regards<br>--<br clear="all">Djordje Romanic<br>M.Sc. in Meteorology<br><br>
<br><br><div class="gmail_quote">On Tue, Aug 14, 2012 at 10:25 AM, sushant puranik <span dir="ltr"><<a href="mailto:sushantpuranik@gmail.com" target="_blank">sushantpuranik@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi<br>Is there any script or predefined function available in GrADS for the computation of pressure gradient force?<br><br><br><br><br>Thanks<span class="HOEnZb"><font color="#888888"><br><br><br><br>Sushant<br>
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