Ron,<br><br>g2ctl can only handle grib files with one grid. So you will have to separate the grids into their own files.<br><br> wgrib2 reg_00_024.grib2 -grid -one_line | grep "493 x 399" | wgrib2 -i reg_00_024.grib2 -grib grid1<br>
wgrib2 reg_00_024.grib2 -grid -one_line | grep -v "493 x 399" | wgrib2 -i reg_00_024.grib2 -grib grid2<br><br>However, once you made your ctl files, you can modify the "dset" to point to the original file.<br>
gribmap is smart enough to handle grib files with different grids.<br><br> Wesley<br><br><br><br><div class="gmail_quote">On Fri, Jun 8, 2012 at 4:14 PM, Goodson,Ron [Edm] <span dir="ltr"><<a href="mailto:Ron.Goodson@ec.gc.ca" target="_blank">Ron.Goodson@ec.gc.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
<div>
<div dir="ltr" align="left"><span lang="en-ca"><font face="Arial"><font><span><font color="#0000ff">Hi</font></span></font></font></span></div>
<div dir="ltr" align="left"><span lang="en-ca"><font face="Arial"><font><span></span></font></font></span> </div>
<div dir="ltr" align="left"><span lang="en-ca"><font><span></span><font face="Arial"><font><span><font color="#0000ff">I already mentioned to Lewis (we
work for the same organization) that his problem is that his grib-file contains
2 different grids (depending upon
variable).</font></span></font></font></font></span></div>
<div dir="ltr" align="left"><span lang="en-ca"><font><font face="Arial"><font color="#0000ff"><span></span></font></font></font></span> </div>
<div dir="ltr" align="left"><span lang="en-ca"><font><font face="Arial"><font color="#0000ff"><span>I answer him to the entire
list, though, in case somebody knows how to handle this situation (other than
breaking the file into two files .. each with their own
grid).</span></font></font></font></span></div>
<div dir="ltr" align="left"><span lang="en-ca"><font><font face="Arial"><font color="#0000ff"><span></span></font></font></font></span> </div>
<div dir="ltr" align="left"><span lang="en-ca"><font><font face="Arial"><font color="#0000ff"><span>tks</span></font></font></font></span></div>
<div dir="ltr" align="left"><span lang="en-ca"><font><font face="Arial"><font color="#0000ff"><span></span></font></font></font></span> </div>
<div dir="ltr" align="left"><span lang="en-ca"><font><font face="Arial"><font color="#0000ff"><span>ron</span></font></font></font></span></div><br>
<div dir="ltr" align="left" lang="en-us">
<hr>
<font face="Tahoma"><b>From:</b> <a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a>
[mailto:<a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a>] <b>On Behalf Of </b>Poulin,Lewis
[CMC]<br><b>Sent:</b> June 8, 2012 9:40 AM<br><b>To:</b>
<a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br><b>Subject:</b> [gradsusr] Problem posting nps grib2
data in grads<br></font><br></div>
<div></div>
<p><font face="Arial">Hello</font> </p>
<p><font face="Arial">I am having difficulty in posting in GrADS my grib2
data on a north polar stereographic grid</font> </p>
<p><font face="Arial">I placed all relevent files and information in the
directory at: </font><br><a href="http://collaboration.cmc.ec.gc.ca/cmc/CMOI/grads/regional/" target="_blank"><u><font face="Arial" color="#0000ff">http://collaboration.cmc.ec.gc.ca/cmc/CMOI/grads/regional/</font></u></a>
</p>
<p><font face="Arial">From this site you can see my grib2 file: called
reg_00_024.grib2</font> </p>
<p><font face="Arial">I am using grads-2.0.a5</font> </p>
<p><font face="Arial">I made the following ctl and idx files (available
that above site)</font> <br><font face="Arial">
reg_00_024.grib2.ctl</font> <br><font face="Arial">
reg_00_024.grib2.idx</font> </p>
<p><font face="Arial">When I run the following simple script: </font></p>
<p><font face="Arial">*start sample script</font> </p>
<p><font face="Arial">'open reg_00_024.grib2.ctl'</font> </p>
<p><font face="Arial">'clear'</font> <br><font face="Arial">'set lon
230 310'</font> <br><font face="Arial">'set lat 30 70'</font> <br><font face="Arial">'set mpvals 235 305 35 65' </font><br><font face="Arial">'set mproj nps'</font> </p>
<p><font face="Arial">'set lev 850'</font> <br><font face="Arial">'d
HGTprs'</font> </p>
<p><font face="Arial">'set lev 500'</font> <br><font face="Arial">'d
TMPprs'</font> </p>
<p><font face="Arial">*end sample script</font> </p><br><br>
<p><font face="Arial">I get the following messages: </font></p>
<p><font face="Arial">Notice: Implied interpolation for file
reg_00_024.grib2.ctl</font> <br><font face="Arial"> Interpolation will
be performed on any data displayed from this file</font> <br><font face="Arial">Cannot contour grid - all undefined values </font><br><font face="Arial">Cannot contour grid - all undefined values </font></p><br><br>
<p><font face="Arial">I cannot get my data to display. </font></p>
<p><font face="Arial">Thanks in advance for your suggestions and
assistance. </font></p>
<p><font face="Arial">Lewis</font> </p></div>
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<br></blockquote></div><br>