<div class="eI0">
  <div class="eI1">模式:</div>
  <div class="eI2"><h2>Times Series from the GFS Ensemble</h2></div>
 </div>
 <div class="eI0">
  <div class="eI1">更新:</div>
  <div class="eI2">2 times per day, from 10:00 and 23:00 UTC</div>
 </div>
 <div class="eI0">
  <div class="eI1">格林尼治平时:</div>
  <div class="eI2">12:00 UTC = 20:00 北京时间</div>
 </div>
 <div class="eI0">
  <div class="eI1">Resolution:</div>
  <div class="eI2">1.0&deg; x 1.0&deg;</div>
 </div>
 <div class="eI0">
  <div class="eI1">参量:</div>
  <div class="eI2"><font face="夹发砰" size="2"> 海平面气压:<br>地面图，海平面气压(百帕)</div>
 </div>
 <div class="eI0">
  <div class="eI1">描述:</div>
  <div class="eI2">
地面图(也称海平面天气图)显示根据本站气压实测值换算到海平面上的气压值的
分布情况。从中能够看出大的天气形势，如高、低压中心，槽、脊线位置等等。
此外，这幅图还能帮助您识别天气尺度系统，同时还可用于粗略地估计中尺度锋
面的位置。<br><br>
    
  </div>
 </div>
 <div class="eI0">
  <div class="eI1">NWP:</div>
  <div class="eI2">Numerical weather prediction uses current weather conditions as input into mathematical models of the atmosphere to predict the weather. Although the first efforts to accomplish this were done in the 1920s, it wasn't until the advent of the computer and computer simulation that it was feasible to do in real-time. Manipulating the huge datasets and performing the complex calculations necessary to do this on a resolution fine enough to make the results useful requires the use of some of the most powerful supercomputers in the world. A number of forecast models, both global and regional in scale, are run to help create forecasts for nations worldwide. Use of model ensemble forecasts helps to define the forecast uncertainty and extend weather forecasting farther into the future than would otherwise be possible.<br>
<br>Wikipedia, Numerical weather prediction, <a href="http://zh.wikipedia.org/wiki/數值天氣預報" target="_blank">http://zh.wikipedia.org/wiki/數值天氣預報</a>(as of Feb. 9, 2010, 20:50 UTC).<br>
</div></div>
</div>