On Wed, May 14, 2008 at 10:32 AM, Arlindo Meque <<a href="mailto:mequitomz@yahoo.com.br">mequitomz@yahoo.com.br</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Dear all,<br>
<br>
I am trying to do a comparison between GFS products (1X1 degree of resolution) and RFE products (0.1X0.1 degree resolution). I do not know how to decrease the resolution of RFE products to 1X1 as GFS.<br>
</blockquote><div><br><br>Your best bet would be use use the extension re() or the older regrid2() UDF with the box-averaging method. Documentation for re() is here:<br><br> <a href="http://opengrads.org/doc/udxt/re/">http://opengrads.org/doc/udxt/re/</a><br>
<br>None of these are yet available with GrADS v2. The built in lterp() function in GrADS v2 will very likely introduce aliasing when going to a much lower resolution, so I'd not recommend it.<br></div></div><br clear="all">
Arlindo<br><br><br><br><br>-- <br>Arlindo da Silva<br><a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a>