<div dir="ltr"><div><div><div>I have attached a script that, I hope, does what you want. It performs the following tasks:<br><br></div>[1} read variable(s)<br><br> h_narr = f_narr->HGT_221_ISBL ; 0 1 2 3<br> x_narr = f_narr->TMP_221_ISBL ; ( initial_time0_hours, lv_ISBL4, gridx_221, gridy_221 )<br><br></div>[2] A function to interpolate to user specified HGT levels on the original NARR grid.<br></div>[3] Use the ESMF weight files generated by <br><div><div><div><div><br> <a href="http://www.ncl.ucar.edu/Applications/ESMF.shtml">http://www.ncl.ucar.edu/Applications/ESMF.shtml</a><br></div><div> Examples 30<br> <br></div><div> to interpolate to a high-resolution rectilinear grid.<br><br></div><div>[4] Use the output from [3] to interpolate to user defined locations.<br><br> <a href="http://www.ncl.ucar.edu/Document/Functions/Contributed/linint2_points_Wrap.shtml">http://www.ncl.ucar.edu/Document/Functions/Contributed/linint2_points_Wrap.shtml</a><br><br></div><div>==============================================q<br></div><div><br><div>I have put the NARR file I used at:<br><br></div><div>ftp <a href="http://ftp.cgd.ucar.edu" target="_blank">ftp.cgd.ucar.edu</a><br></div><div>anonymous<br></div><div>your_email<br></div><div>cd pub/shea<br></div><div>get narr-a_221_20110508_0000_000.<wbr>grb<br></div>quit</div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Mar 2, 2017 at 8:45 AM, Jim Means <span dir="ltr"><<a href="mailto:jim@weatherextreme.com" target="_blank">jim@weatherextreme.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Hello ncl-talk,<br>
<br>
I would like to interpolate NARR data to particular points in space
(lat, lon, height). I have done something like this before by doing
a vertical interpolation using the geopotential heights on NARR's
pressure levels (I think every 25 mb) and then a horizontal
interpolation. It seemed kind clunky, but it worked.<br>
<br>
This was quite a few years ago and when I was researching how to do
the problem again, I came across the functions wrf_user_vert_interp
and wrf_interp_3d_z for WRF models. Does anyone know if there is
anything similar that I could use for NARR (or other models)?<br>
<br>
Thanks,<br>
Jim<span class="HOEnZb"><font color="#888888"><br>
<br>
-- <br>
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<strong style="text-decoration:none;color:#000000;font-size:11px;font-family:Verdana">
James D. Means, Ph.D.</strong><br>
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