<div dir="ltr"><div>Hi Dennis,</div><div><br></div><div>The variables in the range 62000 to 62010 in the updated grib2 table "<a href="http://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_table4-233.shtml" target="_blank">http://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_table4-233.shtml</a>" are "optical depth" and has no units associated with them. </div><div><br></div><div><span class="gmail-il">62000</span> Total Aerosol<br> 62001 Dust Dry<br> 62006 Sulphate Dry<br> 62008 Sea Salt Dry<br> 62009 Black Carbon Dry<br> 62010 Particulate Organic Matter Dry</div><div><br></div><div>62010-62016 are mixing ratios in kg/kg</div><div><br></div><div>Debasish</div><div><br></div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 26, 2016 at 2:13 PM, Dennis Shea <span dir="ltr"><<a href="mailto:shea@ucar.edu" target="_blank">shea@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 dir="ltr"><div><div><div>Again, I will forward this. please send to ncl-talk. Otherwise, I am just a middleman forwarding the emails.<br><br></div>Usually the GRIB tables have units:<br><br></div></div>Examples: <br><a href="http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/ncep_141.htm" target="_blank">http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/ncep_141.htm</a><br><a href="http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/ecmwf_132.htm" target="_blank">http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/ecmwf_132.htm</a><br><br>NCL ... see GRIB section<br>See: <a href="http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclFormatSupport.shtml" target="_blank">http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclFormatSupport.shtml</a><br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 26, 2016 at 12:05 PM, Debasish Hazra <span dir="ltr"><<a href="mailto:debasish.hazra5@gmail.com" target="_blank">debasish.hazra5@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div dir="ltr"><div>The link updated grib2 table is here : </div><div><br></div><div><div><a href="http://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_table4-233.shtml" target="_blank">http://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_table4-233.shtml</a></div><div><br></div><div>Thanks</div><span><font color="#888888"><div>Debasish</div></font></span></div></div><div class="gmail_extra"><br><div class="gmail_quote"><span>On Tue, Jul 26, 2016 at 1:33 PM, Dennis Shea <span dir="ltr"><<a href="mailto:shea@ucar.edu" target="_blank">shea@ucar.edu</a>></span> wrote:<br></span><div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div dir="ltr"><div><div>The issue is that the NGAC grib tables are not publicly available.<br></div>If you know of where they are located, they can be included within NCL<br><br></div>In fact, there is a JIRA ticket on this:<br><div><h2><font size="2"><span style="font-weight:normal">[JIRA] (NCL-2442) GRIB-2: warning: Entry (not found in code table file .../grib2_codetables</span></font><font size="2"><span style="font-weight:normal">/ncep/4/4.3.table</span></font></h2>Just yesterday, a comment was made on this ticket:<br><br>---------<br>
<br>
Unfortunately the "not found in code table file" errors<br>
that Dennis reported in this ticket cannot be corrected<br>
because the entries for that were not found are not documented<br>
by the NCEP GRIB2 web pages. Table 4.3 contains the generating process<br>
mapping. The values found in the file, all in the range 62000 to 62016,<br>
probably refer to local "generating processes" related to the <span>NGAC</span> model.<br>
If documentation can be found to describe these I would be happy to add<br>
them to the tables. <br><br>The other option to get rid of these admittedly annoying<br>
messages might be to just not print the warnings for this piece of metadata<br>
since it is not usually of that much interest to the data consumer. I would<br>
be happy to consider this.<br><br>---------<br></div><div>Note: the *values* returned by NCL are correct. The meta data is not because the<br>NCEP GRIB2 web pages are not available.<br><br>--------<br><br></div><div>Again, if you know where the appropriate tables are located, please send to ncl-talk.<br><br></div><div>THX<br></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Tue, Jul 26, 2016 at 11:21 AM, Debasish Hazra <span dir="ltr"><<a href="mailto:debasish.hazra5@gmail.com" target="_blank">debasish.hazra5@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div><div><div dir="ltr"><div>Hi,</div><div><br></div><div>I am trying to read grib2 file with ncl (v6.3) and it shows the following error while trying to open it:</div><div><br></div><div>fatal:An internal error has occurred. The file format requested does not appear to be supported, could not open (ngac.t00z.aerf24.grib2)</div><div>Variable: f<br>Type: file<br>(0) File Missing Value : -1</div><div><br></div><div>I kept the data file in ftp. Any help on this is appreciated.</div><div><br></div><div>Thanks.</div><span><font color="#888888"><div>Debasish</div></font></span></div>
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