<div dir="ltr"><div>Thank you for the reply. </div>I added:<div><div>istatus = nf90_def_var(ncid,"lat", nf90_float, ila, ilat )</div><div> write (6,*) trim(nf90_strerror(istatus))</div><div>i<b>status = nf90_put_att(ncid, ilat, 'units', 'degrees_north')</b></div><div>istatus = nf90_def_var(ncid,"lon", nf90_float, ilo, ilon )</div><div> write (6,*) trim(nf90_strerror(istatus))</div><div><b>istatus = nf90_put_att(ncid, ilon, 'units', 'degrees_east')</b></div></div><div><br></div><div>To give units to the latitude and longitude. Now I have a new error:</div><div><div><br></div><div>ga-> sdfopen <a href="http://foo.nc">foo.nc</a> </div><div>Scanning self-describing file: <a href="http://foo.nc">foo.nc</a></div><div>SDF file has no discernable time coordinate -- using default values.</div><div>gadsdf: SDF file does not have any non-coordinate variables.</div></div><div><br></div><div>What does that mean? </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 15, 2015 at 11:53 AM, James T. Potemra <span dir="ltr"><<a href="mailto:jimp@hawaii.edu" target="_blank">jimp@hawaii.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hi Tom,<br>
<br>
I think you'll need to add attributes to your variables,
specifically the units. For lat and lon these<br>
should be "degrees_north" and "degrees_east". <br>
<br>
Jim<div><div class="h5"><br>
<br>
<div>On 1/15/15 11:38 AM, Thomas Robinson
wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr">Aloha Grads Users,
<div><br>
</div>
<div>I am bringing in some data and running calculations using
fortran 90. I want to output the data as a netCDF file, and I
would like it to be readable by grads. I have no problem
creating a file called <a href="http://foo.nc" target="_blank">foo.nc</a> and putting my lat, lon, and
ref variables in the file. The problem is if I go to grads
and type 'sdfopen <a href="http://foo.nc" target="_blank">foo.nc</a>', it says </div>
<div>
<div>ga-> sdfopen <a href="http://foo.nc" target="_blank">foo.nc</a> </div>
<div>Scanning self-describing file: <a href="http://foo.nc" target="_blank">foo.nc</a></div>
<div>gadsdf: SDF file has no discernable X coordinate.</div>
<div> To open this file with GrADS, use a descriptor file
with an XDEF entry.</div>
<div> Documentation is at <a href="http://iges.org/grads/gadoc/SDFdescriptorfile.html" target="_blank">http://iges.org/grads/gadoc/SDFdescriptorfile.html</a></div>
</div>
<div>What do I need to add to make the file self describing?</div>
<div> I'm not sure what I need to add to get this to work.
Here is what I have so far:</div>
<div><br>
</div>
<div>
<div>istatus = nf90_create(path = "<a href="http://foo.nc" target="_blank">foo.nc</a>", cmode = nf90_noclobber,
ncid = ncid)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div><br>
</div>
<div>istatus =nf90_def_dim(ncid,'latitude',ny,ila)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus =nf90_def_dim(ncid,'longitude',nx,ilo)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus =nf90_def_dim(ncid,'time',1,itt)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div><br>
</div>
<div>iids = (/ilo,ila,itt/)</div>
<div><br>
</div>
<div>istatus = nf90_def_var(ncid,"ref", nf90_float, iids, iref
)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus = nf90_def_var(ncid,"lat", nf90_float, ila, ilat
)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus = nf90_def_var(ncid,"lon", nf90_float, ilo, ilon
)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus = nf90_enddef(ncid)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div><br>
</div>
<div>istatus = nf90_put_var(ncid,iref,ref)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus = nf90_put_var(ncid,ilat,latrad)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
<div>istatus = nf90_put_var(ncid,ilon,lonref)</div>
<div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
</div>
<div>
<div><br>
</div>
<div>istatus = nf90_close(ncid)</div>
<div> write (6,*) trim(nf90_strerror(istatus))</div>
</div>
<div><br>
</div>
-- <br>
<div>
<div dir="ltr">
<div>
<div dir="ltr">Tom Robinson<br>
Treasurer - Graduate Student Organization <br>
Secretary - Student Athletic Fee Committee <br>
Graduate Student - Department of Atmospheric Science <br>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><pre>_______________________________________________
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</blockquote>
<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr">Tom Robinson<br>Treasurer - Graduate Student Organization <br>Secretary - Student Athletic Fee Committee <br>Graduate Student - Department of Atmospheric Science <br></div></div></div></div>
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