<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Have a look at <a href="http://iges.org/grads/gadoc/grib.html">http://iges.org/grads/gadoc/grib.html</a> -- this doc page gives pretty explicit instructions for how to handle grib and grib2 data with GrADS. The gribmap utility (which is part of the GrADS distribution) handles grib and grib2 files. The g2ctl program is extremely handy, but not strictly required for creating a descriptor file. Perl will probably work out of your home directory, but be sure to change the path in the first line of the g2ctl code to point to your custom location. <div>--Jennifer</div><div><br><div><div><br><div><div>On Oct 5, 2011, at 8:17 PM, Bo Zhang wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi all dear Grads users,<br><br>I am trying to use GrADS 2.0.a9 to interpret Grib2 data on a linux machine. First, I don't have grab2map in my package which seems essential to create a ctl file. Second, another potential option is by using g2ctl. If I am understanding correct this would need perl, which I don't have the privilege to install on the server.(I assume it won't work If I just install it under my home directory. Correct me if I am wrong.) Is there a way to Read Grib2 with GrADS? On GrADS, it sounds like a build-in function for the newest version. Grab2scan does work, and here is what it displays.<br><br>Record 247 <br> Reference Time = 2009-07-19 18:00:00 Start of Forecast<br> Field 1 <br> GDT=0 (Lat/Lon) nx*ny=65160<br> PDT=0, 3 Hour Forecast, Valid Time = 2009-07-19 21:00 <br> Parameter: disc,cat,num = 0,3,0<br> Level: ltype,lval = 6,0 <br><br>Record 248 <br> Reference Time = 2009-07-19 18:00:00 Start of Forecast<br> Field 1 <br> GDT=0 (Lat/Lon) nx*ny=65160<br> PDT=0, 3 Hour Forecast, Valid Time = 2009-07-19 21:00 <br> Parameter: disc,cat,num = 0,3,5<br> Level: ltype,lval = 6,0 <br><br><br>Bo Zhang<br>Dow 824,Civil and Environmental Engineering<br>Michigan Tech University<br>1400 Townsends Drive. <br>Houghton, MI, 49931<br>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>http://gradsusr.org/mailman/listinfo/gradsusr<br></div></blockquote></div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span></div></span> </div><br></div></div></div></body></html>