美宇航局拍摄到5级台风“西利亚”红外图像-凯发k8官网

美宇航局拍摄到5级台风“西利亚”红外图像
文章来源:未知 文章作者:meng 发布时间:2010-06-27 06:37 字体: [ ] 
(单词翻译:双击或拖选)

celia has exploded into a monster hurricane in the eastern pacific, and is now a category 5 storm over open waters. nasa's aqua(浅绿色) satellite captured an 1(红外线的) image (that shows temperature) of celia's clouds and clearly shows an eye in the storm. celia's eye appears well-defined and is between 15-20 2 miles(海里) wide. the 3(大气的) infrared sounder, or airs instrument provides infrared imagery of cloud tops and sea surface temperatures, two things that are important to tropical 4(热带气旋) . high, cold cloud tops indicate strong thunderstorms around a tropical cyclone's center. airs imagery on june 25 noticed that celia had a very large area of high, icy cold clouds that are so very high in the troposphere(对流层) (to the tropopause) that they're as cold as -94 to -112 (-75 to -80 celsius) 5! the national hurricane center called celia a "very impressive hurricane" this morning.

warm sea surface temperatures are also critical for a tropical cyclone's development, and airs infrared imagery is able to read those temperatures from space, too. airs imagery taken on friday, july 25 at 9:05 utc (5:05 a.m. edt) showed that the sea surface temperatures around celia were over the 80 degree fahrenheit threshold needed to continue powering tropical cyclones. as celia continues to move west-northwestward, however, those waters will become cooler and they are expected to weaken celia.

at 5 a.m. edt (2 a.m. pdt) on friday, june 25, powerful category five hurricane celia was packing maximum sustained winds near 160 mph (260 km/hr). hurricane force winds extend outward up to 50 miles (85 km) from the center...and tropical storm force winds extend outward up to 140 miles (220 km). celia's center was located about 805 nautical miles southwest of the southern tip of baja california, near 13.4 north and 117.0 west. celia's minimum central pressure is 926 millibars(毫巴) , and she is moving west-northwest near 13 mph (20 km/hr).

the cooler waters that lie in celia's path are expected to quickly help weaken the storm. the national hurricane center expects celia to be downgraded to tropical storm strength late on sunday, june 27.



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1 dx0yp     
adj./n.红外线(的)
参考例句:
  • infrared is widely used in industry and medical science.红外线广泛应用于工业和医学科学。
  • infrared radiation has wavelengths longer than those of visible light.红外辐射的波长比可见光的波长长。
2 q5azx     
adj.海上的,航海的,船员的
参考例句:
  • a nautical mile is 1,852 meters.一海里等于1852米。
  • it is 206 nautical miles from our present location.距离我们现在的位置有206海里。
3 6eayr     
adj.大气的,空气的;大气层的;大气所引起的
参考例句:
  • sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
4 17cc49112c36617738bb1601499ae56d     
n.气旋( cyclone的名词复数 );旋风;飓风;暴风
参考例句:
  • the pricipal objective in designing cyclones is to create a vortex. 设计旋风除尘器的主要目的在于造成涡旋运动。 来自辞典例句
  • middle-latitude cyclones originate at the popar front. 中纬度地区的气旋发源于极锋。 来自辞典例句
5 hlhx9     
n./adj.华氏温度;华氏温度计(的)
参考例句:
  • he was asked for the boiling point of water in fahrenheit.他被问到水的沸点是华氏多少度。
  • the thermometer reads 80 degrees fahrenheit.寒暑表指出华氏80度。
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