<div class="eI0"> <div class="eI1">模å¼:</div> <div class="eI2"><h2>Times Series from the MetOffice</h2></div> </div> <div class="eI0"> <div class="eI1">æ›´æ–°:</div> <div class="eI2">Update monthly</div> </div> <div class="eI0"> <div class="eI1">æ ¼æž—å°¼æ²»å¹³æ—¶:</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° x 1.0°</div> </div> <div class="eI0"> <div class="eI1">å‚é‡:</div> <div class="eI2"><font face="夹å‘ç °" size="2"> 500百帕风:<br>500百帕ç‰åŽ‹é¢ä¸Šçš„风 </div> </div> <div class="eI0"> <div class="eI1">æè¿°:</div> <div class="eI2"> 这幅图显示æ¯ä¸ªæ¨¡å¼æ ¼ç‚¹(模å¼æ ¼è·çº¦ä¸º80公里)500百帕ç‰åŽ‹é¢ä¸Šæ¨¡å¼è®¡ç®—çš„å¹³å‡é£ŽçŸ¢é‡ã€‚ æ ¹æ®å¹³å‡æµ·å¹³é¢æ°”压值(约为1010百帕)推算,500百帕ç‰åŽ‹é¢é«˜åº¦åœ¨500米左å³ã€‚ 这幅图对低空飞行的滑翔è¿åŠ¨çˆ±å¥½è€…å’Œçƒæ°”çƒé©¾é©¶å‘˜å分有用。 (<a href="javascript:NeuFenster()">风计算器</a>)<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é å ±" target="_blank">http://zh.wikipedia.org/wiki/數值天氣é å ±</a>(as of Feb. 9, 2010, 20:50 UTC).<br> </div></div> </div>