<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.StileMessaggioDiPostaElettronica17
{mso-style-type:personal-compose;
font-family:Arial;
color:windowtext;}
@page Section1
{size:595.3pt 841.9pt;
margin:70.85pt 2.0cm 2.0cm 2.0cm;}
div.Section1
{page:Section1;}
/* List Definitions */
@list l0
{mso-list-id:419722521;
mso-list-type:hybrid;
mso-list-template-ids:563383860 68157441 68157443 68157445 68157441 68157443 68157445 68157441 68157443 68157445;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:36.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l1
{mso-list-id:723719349;
mso-list-type:hybrid;
mso-list-template-ids:558295882 68157441 68157443 68157445 68157441 68157443 68157445 68157441 68157443 68157445;}
@list l1:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:36.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=IT link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I have seen that<o:p></o:p></span></font></p>
<ul style='margin-top:0cm' type=disc>
<li class=MsoNormal style='mso-list:l1 level1 lfo1'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>in a grib file there
can be more than one grib record and also that each record can contain information
about a validity of forecast time, or about a geographical zone, different
from the other record. These is also highlighted using wgrib. <o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l1 level1 lfo1'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>The grib2ctl issue a
descriptor file without information about forecast validity (doesn’t
it?) <o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l1 level1 lfo1'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>The grib2ctl issue a
descriptor file with geographical information contained in only one record<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l1 level1 lfo1'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>GrADS can show only
information descripted in the descriptor file: It shows only the data correspondent
to an internal zone of the geographical area just setted in the descriptor
file<o:p></o:p></span></font></li>
</ul>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>My questions are:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<ul style='margin-top:0cm' type=disc>
<li class=MsoNormal style='mso-list:l0 level1 lfo2'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>The maps issued by
GrADS, at what validity is referred (in the case of more validity present
in a grib file)?<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo2'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>In the case that I
have a file with records referred to more than one forecast validity, how
can I extract the map correspondent to all validity?<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo2'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>How can I extract
information about all geographical zone contained in the unique grib file?<o:p></o:p></span></font></li>
</ul>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>These are the product I’m using:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>grib2ctl v0.9.12.5p45<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>wgrib v1.8.0.12<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>GrADS Ver. 2.0.a7.1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>In the attachment, there is an example of the two
kind of files I spoke above: file LFPW_70.b is referred to a unic forecast
validity of 30 Hours, and cover a geographical zone Lat(-90,90), Lon (-120,150).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>The other file contains 2 validity: 12 Hours and 6 Hours<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Diego<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Diego Morelli<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>T.R.S. S.p.A.<o:p></o:p></span></font></p>
</div>
</body>
</html>