<div style="direction: ltr;"><span class="q">On 3/25/06, <b class="gmail_sendername"><a href="mailto:clfang_pla@sohu.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">clfang_pla@sohu.com</a></b> <
<a href="mailto:clfang_pla@sohu.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">clfang_pla@sohu.com</a>> wrote:</span></div>
<div style="direction: ltr;"><span class="q"><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="direction: ltr;">
> Dear da Silva,<p>> Thank you for your great contributions to <a href="http://lats4d.gs/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">lats4d.gs</a> ,well,would I ask you some questions ,which was
</p><p> encountered during my using <a href="http://lats4d.gs/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">lats4d.gs</a>? </p></div></blockquote></span></div>
<div style="direction: ltr;"><span class="q"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div style="direction: ltr;"><p>> well,I intend to convert a grads format data (normal binary data) with the help of
<a href="http://lats4d.gs/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">lats4d.gs</a> ,</p><p> but after the converting , I use the function grib2ctl.pl to extract the ctl file from the newly </p>
<p> created grib file,then some warnings come up :(below)</p></div></blockquote><div><br>
[snip] <br>
</div><br></span></div>
Two issues here:<br>
<br>
1) No need to use grib2ctl; the option "-format grads_grib" should generate a .ctl for you as well.<br>
<br>
2) The creation of NCEP or ECMWF compliant grib files require that you
specify a proper LATS parameter table. The default is to create
something on the fly which does not conform to NCEP or any other center
conventions. For details on the creation of this table, consult the LAT
S documentation at PCMDI: <a href="http://www-pcmdi.llnl.gov/software/lats/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www-pcmdi.llnl.gov/software/lats/</a>.
Only use the automatically generated table is NCEP compatibility is not
a requirement, say, to use lats4d as a quick lossy compression utility.<br>
<br>
Good Luck,<br>
<br>
Arlindo<br clear="all"><br>-- <br>Arlindo da Silva<br><a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a>