<div class="gmail_quote">On Wed, Apr 8, 2009 at 11:55 AM, P.Romero <span dir="ltr"><<a href="mailto:romero619@hotmail.com">romero619@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I have questions about converting my grib2 data to binary:</span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I tried running “wgrib2 mygrib2file.grb2 –bin mydata.bin”,
which created a very large binary file.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I then tried to use my existing .ctl file (that I had
created with g2ctl.pl), and modify it to point to the new binary file.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">This seemed to work, grads didn’t complain when I
tried to load the control file.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">However, when I tried to plot something, the values were
completely off.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><br>
Whats the correct way to export a grib2 file to binary using wgrib2 &
create a proper .ctl file for this binary file?</span></font></p>
<p><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p></div></div></blockquote><div><br></div><div>Lats4d would give you a binary file in the same order as the ctl:</div><div>
<br></div><div>lats4d -i mydata.ctl -o mydata -format stream -v</div><div><br></div><div>(or use "-format sequential" for a fortran sequential file). This should work with your ctl. In addition you can any kind of subsetting/regridding that lats4d usually does. See</div>
<div><br></div><div> <a href="http://opengrads.org/doc/scripts/lats4d/">http://opengrads.org/doc/scripts/lats4d/</a><br></div><div> </div><div>Remember, with grads v2 lats4d can only write binaries.</div><div><br></div>
<div> Arlindo</div><div><br></div><div>- </div></div>Arlindo da Silva<br><a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a><br>