<div dir="ltr">GrADS community,<div><br></div><div>I am running into a strange issue concerning the TDEF entry in my dummy control file. I am trying to change the TDEF interval entry from '1dy' to '1mo', as I need the first day of every month for computational purposes. However, when I change it to an interval of 1 month and open up the file / display the variable, the interval is correct, but the data displays as if the interval is still daily. For example, if I set the time environment from t=1 to t=2, the interval that shows up is 00Z01jan2000 to 00Z01feb2000, but the actual data that displays is from 00Z01jan2000 to 00Z02jan2000; this is pretty clear because I am plotting total precipitable water, and there isn't much variation between the two time steps. I've also compared this with what should be showing up for 00Z01feb2000. I'm not sure what's going on, as I was able to get this working with another dataset.</div><div><br></div><div>Here is the output of ncdump -h:</div><div><br></div><div><div><div>netcdf NVAP-M_2000-2009.time.grid.rmp.fill.dummy.USE {</div><div>dimensions:</div><div> lon = 360 ;</div><div> lat = 180 ;</div><div> time = UNLIMITED ; // (3653 currently)</div><div>variables:</div><div> double lon(lon) ;</div><div> lon:standard_name = "longitude" ;</div><div> lon:long_name = "longitude" ;</div><div> lon:units = "degrees_east" ;</div><div> lon:axis = "X" ;</div><div> double lat(lat) ;</div><div> lat:standard_name = "latitude" ;</div><div> lat:long_name = "latitude" ;</div><div> lat:units = "degrees_north" ;</div><div> lat:axis = "Y" ;</div><div> double time(time) ;</div><div> time:standard_name = "time" ;</div><div> time:long_name = "Time" ;</div><div> time:units = "minutes since 2000-1-1 00:00:00" ;</div><div> time:calendar = "standard" ;</div><div> time:axis = "T" ;</div><div> double tpw(time, lat, lon) ;</div><div> tpw:_FillValue = -999000000. ;</div><div> tpw:missing_value = -999000000. ;</div><div><br></div><div>// global attributes:</div><div> :CDI = "Climate Data Interface version 1.7.2 (<a href="http://mpimet.mpg.de/cdi">http://mpimet.mpg.de/cdi</a>)" ;</div><div> :Conventions = "CF-1.4" ;</div><div> :history = "Thu Jul 05 16:42:12 2018: cdo remapcon2,/home/jhicks/Downloads/mygridIN.txt <a href="http://NVAP-M_2000-2009.time.grid.rmp.fill.dummy.nc">NVAP-M_2000-2009.time.grid.rmp.fill.dummy.nc</a> <a href="http://NVAP-M_2000-2009.time.grid.rmp.fill.dummy.USE.nc">NVAP-M_2000-2009.time.grid.rmp.fill.dummy.USE.nc</a>" ;</div><div> :CDO = "Climate Data Operators version 1.7.2 (<a href="http://mpimet.mpg.de/cdo">http://mpimet.mpg.de/cdo</a>)" ;</div><div>}</div></div><div><br></div><div><br></div><div><br></div><div>And here is the dummy control file:</div><div><br></div><div><div>dset /data2/NVAP-M/<a href="http://NVAP-M_2000-2009.time.grid.rmp.fill.dummy.USE.nc">NVAP-M_2000-2009.time.grid.rmp.fill.dummy.USE.nc</a> </div><div>title NASA Water Vapor Project - MEaSUREs Dataset</div><div>undef -9999</div><div>dtype netcdf</div><div>xdef 360 linear -179.5 1</div><div>ydef 180 linear -89.5 1</div><div>zdef 1 linear 0 1</div><div>tdef 120 linear 00Z01JAN2000 1mo</div><div>vars 1</div><div>tpw=>tpw 0 t,y,x NVAP-M Climate Total Column Water Vapor</div><div>endvars</div></div><div><br></div><div><br></div><div>Thanks,</div><div><br></div><div>-Justin</div><div><br></div><div><br></div><div><br></div><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8px"><span style="font-size:10pt;font-family:"Times New Roman",serif;background-image:initial;background-repeat:initial"><font color="#000000"><b>Justin Hicks</b></font></span></span><br></div><div><i style="font-size:12.8px"><span style="font-size:10pt;font-family:"Times New Roman",serif;background-image:initial;background-repeat:initial"><font color="#000000">Undergraduate<br>Atmospheric Sciences Major</font></span></i></div><div><i style="font-size:12.8px"><span style="font-size:10pt;font-family:"Times New Roman",serif;background-image:initial;background-repeat:initial"><font color="#000000">GIS Minor<br>University of Maryland-College Park</font></span></i><font color="#000000" face="arial, helvetica, sans-serif" size="2"><b><br></b></font></div></div></div></div></div>
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