<div class="eI0">
  <div class="eI1">Mod&egrave;le:</div>
  <div class="eI2"><h2><a href="http://www.emc.ncep.noaa.gov/GFS/doc.php" target="_blank">GFS</a> (Global Forecast System) Global Model from the "National Centers for Environmental Prediction" (NCEP)</h2></div>
 </div>
 <div class="eI0">
  <div class="eI1">Mise &agrave; jour:</div>
  <div class="eI2">4 times per day, from 3:30, 09:30, 15:30 and 21:30 UTC</div>
 </div>
 <div class="eI0">
  <div class="eI1">Greenwich Mean Time:</div>
  <div class="eI2">12:00 UTC = 13:00 CET</div>
 </div>
 <div class="eI0">
  <div class="eI1">R&eacute;solution:</div>
  <div class="eI2">0.5&deg; x 0.5&deg; for forecast time <= 384 hrs</div>
 </div>
 <div class="eI0">
  <div class="eI1">Param&egrave;tre:</div>
  <div class="eI2">Kind of precipitation</div>
 </div>
 <div class="eI0">
  <div class="eI1">Description:</div>
  <div class="eI2">
<table width="450" cellspacing="0" cellpadding="3" border="0">
 <tr><!-- Row 2 -->
  <td align="left" width="180" height="138"><img
src="//www.wofrance.fr/daten/expertgifs/precipkind_map1.gif"
alt="kind of precipitation"></td>
  <td align="left" width="10" height="138">&nbsp;</td>
  <td align="left" valign="top"><font face="Arial,Helvetica"
size="2">Rain or shower? 
  This chart 
  shows the kind of precipitation that is likely to fall given the
atmospheric 
  and surface conditions at a certain place. <br><br>The following table
explains the 
  symbols:
  </td>
 </tr>
 </table>
 <br>
 <table border="0" cellpadding="0" cellspacing="1" width="450" height="195">
  <tr>
   <td width="32%" height="18" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Precipitation</td>
   <td width="22%" align="center" height="18"
bgcolor="#EEEEEE"><font face="Arial,Helvetica"
size="2">Light</td>
   <td width="23%" align="center" height="18"
bgcolor="#EEEEEE"><font face="Arial,Helvetica"
size="2">Moderate</td>
   <td width="23%" align="center" height="18"
bgcolor="#EEEEEE"><font face="Arial,Helvetica"
size="2">Heavy</td>
  </tr>
 <tr>
  <td width="32%" height="25" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Rain</td>
  
  <td width="22%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/16.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/17.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/18.gif"></td>
 </tr>
 
 <tr>
  <td width="32%" height="25" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Rain shower</td>
  
  <td width="22%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/15.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/14.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/14.gif"></td>
 </tr>
 
 <tr>
  <td width="32%" height="25" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Snow</td>
  
  <td width="22%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/21.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/22.gif"></td>
  <td width="23%" align="center" height="25"
bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/23.gif"></td>
 </tr>
 
 <tr>
  <td width="32%" height="25" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Snow shower</td>
  
  <td width="22%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/19.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/20.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/20.gif"></td>
 </tr>
 
 <tr>
 <td width="32%" height="25" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Sleet</td>
 
  <td width="22%" align="center" height="25"><font
face="Arial,Helvetica" size="2"><img border="0"
src="//www.wofrance.fr/daten/expertgifs/24.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/25.gif"></td>
  <td width="23%" align="center" height="25" bgcolor="#FFFFFF"><img
border="0" src="//www.wofrance.fr/daten/expertgifs/25.gif"></td>
 </tr>
 <tr>
  <td width="32%" height="25" bgcolor="#EEEEEE"><font
face="Arial,Helvetica" size="2">Freezing rain</td>
  
  <td width="22%" align="center" height="25"><img border="0"
src="//www.wofrance.fr/daten/expertgifs/13.gif"></td>
  <td width="23%" align="center" height="25"><img border="0"
src="//www.wofrance.fr/daten/expertgifs/12.gif"></td>
  <td width="23%" align="center" height="25"><img border="0"
src="//www.wofrance.fr/daten/expertgifs/12.gif"></td>
 
 </tr>
          <tr>
            <td width="32%" align="center" height="25" bgcolor="#FFFFFF"></td>
            <td width="17%" align="center" height="25" bgcolor="#FFFFFF"></td>
            <td width="17%" align="center" height="25" bgcolor="#FFFFFF"></td>
            <td width="17%" align="center" height="25" bgcolor="#FFFFFF"></td>
            <td width="17%" align="center" height="25" bgcolor="#FFFFFF"></td>
            
          </tr>
          <tr>
            <td width="32%" height="18" bgcolor="#EEEEEE">Cloud Cover</td>
            <td width="17%" align="center" height="18" bgcolor="#EEEEEE">0-2</td>
            <td width="17%" align="center" height="18" bgcolor="#EEEEEE">3-4</td>
            <td width="17%" align="center" height="18" bgcolor="#EEEEEE">5-7</td>
            <td width="17%" align="center" height="18" bgcolor="#EEEEEE">8</td>
          </tr>
          <tr>
            <td width="32%" height="25" bgcolor="#EEEEEE">(eights)</td>
            
            <td width="17%" align="center" height="25"><img border="0" src="//www.wofrance.fr/daten/expertgifs/few.gif"></td>
            <td width="17%" align="center" height="25"><img border="0" src="//www.wofrance.fr/daten/expertgifs/sct.gif"></td>
            <td width="17%" align="center" height="25"><img border="0" src="//www.wofrance.fr/daten/expertgifs/bkn.gif"></td>
            <td width="17%" align="center" height="25"><img border="0" src="//www.wofrance.fr/daten/expertgifs/ovc.gif"></td>
            
          </tr>
 </table>
      
    
  </div>
 </div>
 <div class="eI0">
  <div class="eI1">GFS:</div>
  <div class="eI2">The Global Forecast System (<a href="http://www.emc.ncep.noaa.gov/gmb/moorthi/gam.html" target="_blank">GFS</a>) is a global numerical weather prediction computer model run by NOAA. This mathematical model is run four times a day and produces forecasts up to 16 days in advance, but with decreasing spatial and temporal resolution over time it is widely accepted that beyond 7 days the forecast is very general and not very accurate.<br>
<br>
The model is run in two parts: the first part has a higher resolution and goes out to 180 hours (7 days) in the future, the second part runs from 180 to 384 hours (16 days) at a lower resolution. The resolution of the model varies in each part of the model: horizontally, it divides the surface of the earth into 35 or 70 kilometre grid squares; vertically, it divides the atmosphere into 64 layers and temporally, it produces a forecast for every 3rd hour for the first 180 hours, after that they are produced for every 12th hour.
</div></div>
 <div class="eI0">
  <div class="eI1">NWP:</div>
  <div class="eI2">La pr&eacute;vision num&eacute;rique du temps (PNT) est une application de la m&eacute;t&eacute;orologie et de l'informatique. Elle repose sur le choix d'&eacute;quations math&eacute;matiques offrant une proche approximation du comportement de l'atmosph&egrave;re r&eacute;elle. Ces &eacute;quations sont ensuite r&eacute;solues, &agrave; l'aide d'un ordinateur, pour obtenir une simulation acc&eacute;l&eacute;r&eacute;e des &eacute;tats futurs de l'atmosph&egrave;re. Le logiciel mettant en &oelig;uvre cette simulation est appel&eacute; un mod&egrave;le de pr&eacute;vision num&eacute;rique du temps.<br><br>
<br>Pr&eacute;vision num&eacute;rique du temps. (2009, d&eacute;cembre 12). Wikip&eacute;dia, l'encyclop&eacute;die libre. Page consult&eacute;e le 20:48, f&eacute;vrier 9, 2010 &agrave; partir de <a href="http://fr.wikipedia.org/w/index.php?title=Pr%C3%A9vision_num%C3%A9rique_du_temps&oldid=47652746" target="_blank">http://fr.wikipedia.org/w/index.php?title=Pr%C3%A9vision_num%C3%A9rique_du_temps&oldid=47652746</a>.<br>
</div></div>
</div>