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<p>Karl and Jeff,</p>
<p> The problem is that the GOES-16 data aren't on a constant
grid or on a standard map projection, so I don't know of an easy
way to make a GrADS control file that can adequately capture the
navigation information in the file. I've resorted to writing
FORTRAN 90 code to remap the GOES-16 data onto a lat / lon grid
and then plotting that in GrADS.<br>
</p>
<p>Cheers,</p>
<p>Bob<br>
</p>
<div class="moz-cite-prefix">On 11/7/2018 1:50 PM, Jeff Duda wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAAig09BHT920MSR2fUkQ0zS9ZXOSvOZzsWyaR5n5BnKaWsD=Mg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div dir="ltr">This page (<a
href="http://cola.gmu.edu/grads/gadoc/gradcomdxdfopen.html"
moz-do-not-send="true">http://cola.gmu.edu/grads/gadoc/gradcomdxdfopen.html</a>)
will give you all the information you need to create a control
file. You can use ncdump -h or ncdump -c to get the attribute
and dimension information and coordinate dumps needed.
<div><br>
</div>
<div>Jeff Duda</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Wed, Nov 7, 2018 at 11:36 AM Schneider, Karl P
<<a href="mailto:kps5442@psu.edu" moz-do-not-send="true">kps5442@psu.edu</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto">
Bob, to clarify, I can create an image, but the problem is
that like you mentioned, I’m not sure of a way to overlay
the basemap.
<div><br>
</div>
<div>Jeff, </div>
<div>That seems like what I need to do. Could you provide an
example of a control file that might do the trick? </div>
<div><br>
</div>
<div>Karl<br>
<br>
<div dir="ltr"><br>
On Nov 7, 2018, at 1:12 PM, Jeff Duda <<a
href="mailto:jeffduda319@gmail.com" target="_blank"
moz-do-not-send="true">jeffduda319@gmail.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">Have you tried writing a short control
file and using xdfopen instead? That is a way of
getting around netcdf files that aren't perfectly
formatted.
<div><br>
</div>
<div>Jeff Duda</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Wed, Nov 7, 2018 at 9:45 AM
Schneider, Karl P <<a
href="mailto:kps5442@psu.edu" target="_blank"
moz-do-not-send="true">kps5442@psu.edu</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div
id="m_-1042449384326600893m_285517113583969585divtagdefaultwrapper"
style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif"
dir="ltr">
<p style="margin-top:0;margin-bottom:0">Hi
everyone,</p>
<p style="margin-top:0;margin-bottom:0">I'm
looking for a way to plot some satellite
data in GrADS. I've found a source for
GOES-16 netcdf data, but its format is not
compatible as shown below; the lat and lon
are set to the number of grid points in the
file, not the lat/lon extent of the file:</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<div>ga-> sdfopen
OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc<br>
Scanning self-describing file:
OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc<br>
SDF file has no discernable time coordinate
-- using default values.<br>
SDF file
OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc
is open as file 1<br>
LON set to 0 9999 <br>
LAT set to 0 5999 <br>
</div>
<div><br>
</div>
<div>I've seen this issue pop up previously on
the forum, but there was no good answer I
could make sense of. I'm hoping someone
could share some code with me to help
resolve the issue, or better yet point me to
a source of netcdf's that can be read in via
the sdfopen command. <br>
</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Karl<br>
<br>
</div>
<br>
</div>
</div>
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<div><font size="2"><span>Jeff
Duda, Research Scientist<br>
</span></font>
<p
style="margin-bottom:0.0001pt"><font
size="2"><span><span>University
of Colorado Boulder</span></span></font></p>
<font size="2"><span></span></font>
<p
style="margin-bottom:0.0001pt"><font
size="2"><span><span>Cooperative
Institute for Research
in Environmental
Sciences</span></span></font></p>
<font size="2"><span></span></font>
<p
style="margin-bottom:0.0001pt"><font
size="2"><span><span>NOAA/OAR/ESRL/Global
Systems Division</span></span></font></p>
<font size="2"><span><span>Boulder,
CO</span></span></font> </div>
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<div><font size="2"><span>Jeff Duda, Research
Scientist<br>
</span></font>
<p style="margin-bottom:0.0001pt"><font
size="2"><span><span>University of
Colorado Boulder</span></span></font></p>
<font size="2"><span>
</span></font>
<p style="margin-bottom:0.0001pt"><font
size="2"><span><span>Cooperative
Institute for Research in
Environmental Sciences</span></span></font></p>
<font size="2"><span>
</span></font>
<p style="margin-bottom:0.0001pt"><font
size="2"><span><span>NOAA/OAR/ESRL/Global
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<font size="2"><span>
<span>Boulder, CO</span></span></font>
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<pre class="moz-signature" cols="72">--
Bob Kuligowski, Ph.D.
Meteorologist
NOAA/NESDIS/Center for Satellite Applications and Research (STAR)
Mailing Address:
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Bob Kuligowski
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