<div dir="ltr">Hi Jerry,<br><div><br><a href="http://jra.kishou.go.jp/JRA-55/document/JRA-55_handbook_TL319_en.pdf">http://jra.kishou.go.jp/JRA-55/document/JRA-55_handbook_TL319_en.pdf</a><br><a href="http://jra.kishou.go.jp/JRA-55/index_en.html">http://jra.kishou.go.jp/JRA-55/index_en.html</a><br><br>===<br></div><div>NCAR's Climate Analysis Section's Climate Data Guide has information contributed by a JRA expert: Shinya Kobayashi (Japan Meteorological Agency)</div><div><br><a href="https://climatedataguide.ucar.edu/climate-data/jra-55">https://climatedataguide.ucar.edu/climate-data/jra-55</a><br><br>====<br>I think I created the 'pres_hybrid_jra55' script and the '<a href="http://JRA55.hybrid_levels.nc">JRA55.hybrid_levels.nc</a>' file based on a request by NCAR's Data Support Section.<br><br></div><div>I am not sure what you mean by: <span style="font-family:arial,helvetica,sans-serif"><font size="2">"Do you have suggestions before I try it?" </font></span></div><div>===<br></div><div><br></div><div>%> ncdump -h <a href="http://JRA55.hybrid_levels.nc">JRA55.hybrid_levels.nc</a><br><br>==<br>netcdf JRA55.hybrid_levels {<br>dimensions:<br> ilev = 61 ;<br> lev = 60 ;<br>variables:<br> double P0 ;<br> P0:units = "Pa" ;<br> P0:long_name = "reference pressure" ;<br> double ilev(ilev) ;<br> ilev:formula = "p(k) = ai(k) + bi(k)*P0" ;<br> ilev:units = "Pa" ;<br> ilev:long_name = "hybrid level at interfaces" ;<br> double lev(lev) ;<br> lev:formula = "p(k) = exp[(1/delp(k))*[p(k-0.5)*log(p(k-0.5)) - p(k+0.5)*log(p(k+0.5))]-1]" ;<br> lev:standard_name = "atmosphere_hybrid_sigma_pressure_coordinate" ;<br> lev:units = "Pa" ;<br> lev:long_name = "hybrid level at midpoints" ;<br> double hyai(ilev) ;<br> hyai:long_name = "hybrid A coefficient at layer interfaces (half levels)" ;<br> double hybi(ilev) ;<br> hybi:long_name = "hybrid B coefficient at layer interfaces (half levels)" ;<br><br>// global attributes:<br> :creation_date = "Thu Mar 12 08:37:10 MDT 2015" ;<br> :Conventions = "None" ;<br> :netCDF_type = "Classic" ;<br> :source_info = "<a href="http://rda.ucar.edu/datasets/ds628.0/docs/JRA-55.handbook_TL319_en.pdf">http://rda.ucar.edu/datasets/ds628.0/docs/JRA-55.handbook_TL319_en.pdf</a>" ;<br> :title = "JRA55: hybrid interface coefficients and nominal pressure levels" <br><br>==============<br><br></div><div>Regards<br></div><div>D<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 29, 2018 at 9:13 AM, Potter, Gerald Lee. (GSFC-606.2)[UNIVERSITIES SPACE RESEARCH ASSOCIATION] via ncl-talk <span dir="ltr"><<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p><font size="+1" face="Times New Roman, Times, serif">Hello,<br>
</font><font size="+1" face="Times New Roman, Times, serif"><br>
I'm interested in trying the pres_hybrid_jra55 script. Do you have<br>
suggestions before I try it. Also do you have the hyai and hybi<br>
coefficients for JRA-55 available in netcdf? Specifically, I am interested in the file
</font><font size="+1" face="Times New
Roman, Times, serif"><a href="http://JRA55.hybrid_levels.nc" target="_blank">JRA55.hybrid_levels.nc</a></font><font size="+1" face="Times New Roman, Times, serif"> that is mentioned in the example Pres_hybrid_jra55</font><br>
</p>
<p><br>
Thank you,<br>
<br>
Jerry</p><span class="HOEnZb"><font color="#888888">
<pre class="m_8073370710382051316moz-signature" cols="72">--
Gerald (Jerry) Potter
NASA Goddard Space Flight Center
e-mail <a class="m_8073370710382051316moz-txt-link-abbreviated" href="mailto:gerald.potter@nasa.gov" target="_blank">gerald.potter@nasa.gov</a>
Office 28-S5241
Phone <a href="tel:(707)%20315-8314" value="+17073158314" target="_blank">707-315-8314</a>
Department GSFC:606.2</pre>
</font></span></div>
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