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<p>You could use ncks for a single line extraction (see PSD page
below that Dennis helpfully supplied). e.g. <br>
</p>
<p> ncks -v lat
<a class="moz-txt-link-freetext" href="https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/interp_OLR/olr.mon.mean.nc">https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/interp_OLR/olr.mon.mean.nc</a>
a.nc</p>
<p>or</p>
<p>ncks -v olr
<a class="moz-txt-link-freetext" href="https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/interp_OLR/olr.mon.mean.nc">https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/interp_OLR/olr.mon.mean.nc</a>
a.nc</p>
<p>(ncks keeps coordinate variables too)<br>
</p>
<p>NCL will read and write a netCDF file with a single variable
usinfg the OPEnDAP URL though you have to write a few lines of
code. You could even make that work as command line routine and
read in variable/file to save.<br>
</p>
<p>I'm sure there are other ways, too.<br>
</p>
<p>Cathy<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 6/10/19 11:35 AM, Dennis Shea wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOF1d_5Eq5pLPcVf2qths7Bu8gFPUbJChJbKaszZG_0rcynC0w@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div><br>
</div>
<div>re: " ... <b>only downloading specific variables of a
NetCDF file"</b></div>
<div><br>
</div>
<div>The question is unclear. In what context? <br>
</div>
<div>Are you talking about accessing a variable from a remote
site [ eg: a NOAA server ] from within a NCL script? <br>
</div>
<div> See: <a
href="https://www.ncl.ucar.edu/Applications/opendap.shtml"
moz-do-not-send="true"><b>https://www.ncl.ucar.edu/Applications/opendap.shtml</b></a></div>
<div><br>
</div>
<div>----</div>
<div><br>
</div>
<div>The ESRL: PSD site provides <br>
</div>
<div><a
href="https://www.esrl.noaa.gov/psd/data/gridded/using_dods.html#software"
moz-do-not-send="true"><b>https://www.esrl.noaa.gov/psd/data/gridded/using_dods.html#software</b></a></div>
<div><br>
</div>
<div>links to a number of tools to do what you want</div>
<div><br>
</div>
<div>Good luck<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Jun 10, 2019 at 10:01
AM Micah Sklut <<a href="mailto:micahs2005@gmail.com"
moz-do-not-send="true">micahs2005@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>I haven't found any info regarding only downloading
specific variables of a NetCDF file, but I just wanted to
check with the NCL community in case I am missing
something. </div>
<div><br>
</div>
<div>Thank you. </div>
<div><br>
</div>
</div>
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<a class="moz-txt-link-freetext" href="https://www.esrl.noaa.gov/psd/people/cathy.smith/">https://www.esrl.noaa.gov/psd/people/cathy.smith/</a>
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