<html><head></head><body>zero it's ok: it is the byte offset, e.g: 587452 -> the second grib message starts 587452 bytes after the beginning of the file, 0 -> it is the first grib message.<div>...</div><div>Bye</div><div>Davide<br><br><div style="margin: 0px; padding: 0px; box-sizing: content-box; color: rgb(34, 34, 34);"><i style="box-sizing: content-box;"><font size="2" style="box-sizing: content-box;"><span id="mcntmcntext-gen4583" style="box-sizing: content-box; font-family: Calibri, sans-serif;">Dott. Davide Sacchetti</span></font></i></div><div style="margin: 0px; padding: 0px; box-sizing: content-box; color: rgb(34, 34, 34);"><i style="box-sizing: content-box;"><font size="2" style="box-sizing: content-box;"><span id="mcntmcntext-gen4583" style="box-sizing: content-box; font-family: Calibri, sans-serif;"></span></font></i></div><i style="box-sizing: content-box; color: rgb(34, 34, 34);"><font size="2" style="box-sizing: content-box;"><span id="mcntmcntext-gen4583" style="box-sizing: content-box; font-family: Calibri, sans-serif;">Dipartimento Stato dell’Ambiente e Tutela dai Rischi Naturali<br style="box-sizing: content-box;">U.O. Clima Meteo Idro<br style="box-sizing: content-box;">Viale Brigate Partigiane 2, 16129 Genova (I)<br style="box-sizing: content-box;">tel: +39 0106437535<br style="box-sizing: content-box;">mail: <a href="mailto:mauro.damonte@arpal.liguria.it" class="mailto" title="Send email to mauro.damonte@arpal.liguria.it" target="_blank" style="box-sizing: content-box;">davide.sacchetti@arpal.liguria.it</a> web: <a href="http://www.meteoliguria.it/" title="http://www.meteoliguria.it" target="_blank" style="box-sizing: content-box;">https://www.arpal.liguria.it/homepage/meteo.html</a></span></font></i><br><br><br><div><strong>
Da:
</strong>
CW Weather <weatherstu@chorleyweather.com>
<br>
<strong>
A:
</strong>
GrADS Users Forum <gradsusr@gradsusr.org>
<br>
<strong>
Inviato:
</strong>
14/06/2022 21:46
<br>
<strong>
Oggetto:
</strong>
[gradsusr] Precip Issue with ECM/MET office data
<br><br><blockquote class="mori" style="margin:0 0 0 .8ex;border-left:1px solid #CCC;padding-left:1ex;"><div style="font-size: 10pt; font-family: Tahoma,Arial,Helvetica,sans-serif">
<p>Hello Grads users, </p>
<p><br></p>
<p>When using ECMWF data and also certain Met Office data the precipitation values are undefined. On closer inspection when I inventory the grib as shown below, the first line has 0 figure (in bold) at the start where there should be a value. No matter what hour I start on it shows a zero value. I believe this is preventing the data running. I use curl to download the grib and perl to create the ctl file. (example at the bottom)</p>
<p><br></p>
<p>1:<strong>0</strong>:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:10 hour fcst:<br>2:587452:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:11 hour fcst:<br>3:1174904:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:12 hour fcst:<br>4:1762356:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:13 hour fcst:<br>5:2349808:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:14 hour fcst:<br>6:2937260:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:15 hour fcst:<br>7:3524712:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:16 hour fcst:<br>8:4112164:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:17 hour fcst:<br>9:4699616:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:18 hour fcst:<br>10:5287068:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:19 hour fcst:<br>11:5874520:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:20 hour fcst:<br>12:6461972:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:21 hour fcst:<br>13:7049424:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:22 hour fcst:<br>14:7636876:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:23 hour fcst:<br>15:8224328:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:24 hour fcst:<br>16:8811780:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:3 hour fcst:<br>17:9399232:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:4 hour fcst:<br>18:9986684:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:5 hour fcst:<br>19:10574136:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:6 hour fcst:<br>20:11161588:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:7 hour fcst:<br>21:11749040:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:8 hour fcst:<br>22:12336492:d=2022052100:var discipline=0 master_table=27 parmcat=1 parm=65:surface:9 hour fcst:</p>
<p><br></p>
<p>Perl: </p>
<p>@ECHO Please wait, concatenating grb files...<br>cat *.grb > metoglb_grib.grib2<br>@ECHO Please wait, creating ctl file...<br>perl g2ctl.pl -verf metoglb_grib.grib2 > metogl_grib.ctl<br>@ECHO Please wait, creating idx file...<br>gribmap -i metoglb_grib.ctl -e</p>
<div id="mcntsignature">-- <br>
<p>Kind regards,</p>
<p><strong>Stuart Markham</strong></p>
<p><em><img src="cid:6b66f0ed98388166210072475f549d2c@chorleyweather.com" width="78" height="51"></em></p>
<p><em>Founder of CW Weather</em></p>
<p><em>Website: <a title="www.chorleyweather.com" href="https://urlsand.esvalabs.com/?u=https%3A%2F%2Fwww.chorleyweather.com%2F&e=7f48b148&h=f3943ebc&f=y&p=n" target="_blank">chorleyweather.com</a></em></p>
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