<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Sorry, but my build of GrADS doesn't have any problems with udunits parsing of the units in that syntax. I don't know why it's not working in your environment. Perhaps John Huddleston (who provided the ubuntu build) can help. <div>--Jennifer<br><div><br><div><div>On Mar 11, 2010, at 10:56 AM, Song Feng wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><font face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size="2">Hi All:<br><br>The output from ncdump -hc on the netcdf file are listed as the following. The GrADS I installed cannot also display the 'ndtcdf' files from the NCEP-NCAR reanalysis. <br><br><span style="text-decoration: underline;">netcdf pr_A1_sum {<br>dimensions:<br> lat = 64 ;<br> bnds = 2 ;<br> lon = 128 ;<br> time = UNLIMITED ; // (150 currently)<br>variables:<br> double lat(lat) ;<br> lat:long_name = "Latitude" ;<br> lat:standard_name = "latitude" ;<br> lat:axis = "Y" ;<br> lat:units = "degrees_north" ;<br> lat:bounds = "lat_bnds" ;<br> double lat_bnds(lat, bnds) ;<br> lat_bnds:long_name = "Latitude bounds" ;<br> double lon(lon) ;<br> lon:long_name = "Longitude" ;<br> lon:standard_name = "longitude" ;<br> lon:axis = "X" ;<br> lon:units = "degrees_east" ;<br> lon:bounds = "lon_bnds" ;<br> double lon_bnds(lon, bnds) ;<br> lon_bnds:long_name = "Longitude bounds" ;<br> float pr(time, lat, lon) ;<br> pr:long_name = "Accumulated Total Precipitation" ;<br> pr:original_units = "mm/day" ;<br> pr:units = "kg m-2 s-1" ;<br> pr:missing_value = 1.e+20f ;<br> pr:_FillValue = 1.e+20f ;<br> pr:cell_methods = "time: mean (interval: 30 minutes)" ;<br> pr:standard_name = "precipitation_flux" ;<br> double time(time) ;<br> time:long_name = "Time" ;<br> time:units = "days since 1800-1-1 00:00:0.0" ;<br> time:axis = "T" ;<br> time:calendar = "gregorian" ;<br> time:delta_t = "0000-01-00 00:00:00" ;<br> time:avg_period = "0000-01-00 00:00:00" ;<br> time:prev_avg_period = "0000-00-00 06:00:00" ;<br> time:standard_name = "time" ;<br> time:bounds = "time_bnds" ;<br> double time_bnds(time, bnds) ;<br><br>// global attributes:<br> :title = "BCCR model output prepared for IPCC Fourth Assessment Report climate of the 20th Century experiment (20C3M)" ;<br> :project_id = "IPCC Fourth Assessment" ;<br> :table_id = "Table A1" ;<br> :experiment_id = "climate of the 20th Century experiment (20C3M)" ;<br></span><br><br>Blessings,<br><br>Song <br><br><a href="mailto:-----gradsusr-bounces@gradsusr.org">-----gradsusr-bounces@gradsusr.org</a> wrote: -----<br><div><font color="#990099"><br></font><blockquote style="border-left: 2px solid #000000; padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">To: GrADS Users Forum <<a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a>><br>From: Jennifer Adams <<a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a>><br>Sent by: <a href="mailto:gradsusr-bounces@gradsusr.org">gradsusr-bounces@gradsusr.org</a><br>Date: 03/11/2010 08:40AM<br>Subject: Re: [gradsusr] GrADS on ubuntu<br><br>What is the output from ncdump -hc on pr_A1_sum.nc? <div><br><div><div>On Mar 10, 2010, at 5:38 PM, Song Feng wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><font face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size="2">Hi All:<br><br>I installed the GrADS (version 2.0.a7.1) on ubuntu 9.1. The GrADS works well to display files on 'binary' and 'grib' format. However, the GrADS can not open the 'NetCDF' file. The following are the error message I got:<br><br>ga> sdfopen pr_A1_sum.nc<br>Scanning self-describing file: pr_A1_sum.nc<br>ut_get_converter(): Units not convertible<br>ut_get_converter(): Units not convertible<br>ut_get_converter(): Units not convertible<br>ut_get_converter(): Units not convertible<br>ut_get_converter(): Units not convertible<br>ut_get_converter(): Units not convertible<br>ut_get_converter(): Units not convertible<br>Success<br>ut_get_converter(): Couldn't get converter from seconds<br>ut_get_converter(): Units in different unit-systems<br>Success<br>ut_get_converter(): Couldn't get converter from seconds<br>ut_get_converter(): Units not convertible<br>Success<br>ut_get_converter(): Couldn't get converter from seconds<br>gadsdf: Error parsing time units in SDF file.<br><br>I have used the GrADS on RedHat and Unix system and I am pretty sure I can display the file ' pr_A1_sum.nc' using 'sdfopen'. Any ideas/suggestions?<br><br>Blessings,<br><br>Song <br></font>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br><a href="http://gradsusr.org/mailman/listinfo/gradsusr">http://gradsusr.org/mailman/listinfo/gradsusr</a><br></blockquote></div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><font color="#000000"><div style="word-wrap: break-word;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><font color="#000000"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><font color="#000000"><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"></font></span></font></span></div></font></span> </div><br></div><font face="Courier New,Courier,monospace" size="3">_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br><a href="http://gradsusr.org/mailman/listinfo/gradsusr">http://gradsusr.org/mailman/listinfo/gradsusr</a><br></font> </blockquote><br></div></font></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></body></html>