<HTML>
<HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META content="OPENWEBMAIL" name=GENERATOR>
</HEAD>
<BODY bgColor=#ffffff>
<font size="2">The code of the scorr function can be found in the gafunc.c subroutine, directory src. You have to download some GrADS src code.
<br />Basically, it is the same correlation used in 1D analysis (extended to 2D, of course) and using an areal average, which is weighted with laltitude. scorr=COV(var1,var2)/(Sigma(var1)*Sigma(var2)), where sigma(var) is the standard deviation of the variable var.
<br />
<br />Regards,
<br />Ricardo
<br /><b>
<br />On Fri, 16 Nov 2012 13:58:06 +0900, Craig R. FERGUSON wrote</b>
<br />> I am
curious how 'spatial correlation' is defined/computed in the GrADS
sense. Could someone please explain? Is there a way to see the hard code of the
scorr function?
<br />>
<br />> Thank you.
<br />>
<br />> <a href="http://www.iges.org/grads/gadoc/gradfuncscorr.html">http://www.iges.org/grads/gadoc/gradfuncscorr.html</a>
<br clear="all" />
<br />
<br />
</font>
</BODY>
</HTML>