加州是极端天气的“故乡”-凯发k8官网

加州是极端天气的“故乡”
文章来源:未知 文章作者:enread 发布时间:2012-11-05 06:25 字体: [ ] 
(单词翻译:双击或拖选)
california isn't going to face a superstorm like hurricane sandy because the pacific ocean is too cold to feed that kind of weather system. but that doesn't mean california won't see extreme weather, say researchers from the university of california, merced.
 
"we can see very big storms, and there are a couple of issues related to climate change to think about," said roger bales, director of the sierra nevada research institute. "most of our biggest storms are snow storms, which builds up snowpack in the mountains. the snowpack is a reservoir, storing water that will be used throughout the year across the state.
 
"but if you warm the climate," he said, "those storms become rain events -- there's more 1 runoff(径流,决赛), less water storage, and the rain will actually melt some of the existing snowpack."
 
the worst-case winter 2 would be a series of storms that cause flooding, said james brotherton, warning-coordination meteorologist for the national weather service in hanford.
 
"we definitely have the potential to be impacted by major winter storms, or a series of them," brotherton said.
 
"it's not 3 during the winter, at least once, that we will see storms coming off the pacific and drop more than 100 inches of snow in the mountains over short durations," said project scientist and lecturer robert rice, with snri. "that could translate into 10 inches of 4 water -- numbers similar to what they're measuring in hurricane sandy. snow events, which we commonly see in the sierra, and across the western u.s., are generally unheard of on the east coast, even during hurricane sandy, or a nor'easter."
 
there have been years when what's commonly called the pineapple express -- a 5, strong flow of 6 moisture coming from the area near hawaii -- has pummeled the west coast. those kinds of "atmospheric rivers" historically caused problems in california, flooding sacramento and the central valley. but land use has changed dramatically from the last time that was a problem -- in the 1800s -- and california has much more control of its waterways, brotherton said.
 
"we have very large storms that cross into california and affect our region -- not with the same widespread damage as hurricane sandy, but with water and wind that are comparable to hurricanes and tornados," rice said.
 
rice cited a storm over the last weekend of november 2011 that included a wind event similar to a category 3 7 or category 4 hurricane, with sustained winds higher than 100 mph and 8 of more than 150 mph.
 
"these storms would be very destructive and 9 to urban areas," rice said, "and they are more frequent than most people imagine. not much attention is focused on them because they rarely affect large urban populations, more often being restricted to the sierra."


点击收听单词发音收听单词发音  

1 aapxh     
adj.立即的;直接的,最接近的;紧靠的
参考例句:
  • his immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
  • we declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。
2 lzoxm     
n.剧本,脚本;概要
参考例句:
  • but the birth scenario is not completely accurate.然而分娩脚本并非完全准确的。
  • this is a totally different scenario.这是完全不同的剧本。
3 alpwo     
adj.罕见的,非凡的,不平常的
参考例句:
  • such attitudes were not at all uncommon thirty years ago.这些看法在30年前很常见。
  • phil has uncommon intelligence.菲尔智力超群。
4 62ebdd80402ea60082e5ffbc9a70c658     
adj.可沉淀的,沉淀性的
参考例句:
  • a new instrument for measuring the total precipitable water in the atmosphere is introduced. 介绍一种测量大气水汽总量的新方法和仪器。 来自互联网
5 bsuzg     
adj.坚持不懈的,执意的;持续的
参考例句:
  • albert had a persistent headache that lasted for three days.艾伯特连续头痛了三天。
  • she felt embarrassed by his persistent attentions.他不时地向她大献殷勤,使她很难为情。
6 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。
7 inowl     
n.飓风,龙卷风
参考例句:
  • a tornado whirled into the town last week.龙卷风上周袭击了这座城市。
  • the approaching tornado struck awe in our hearts.正在逼近的龙卷风使我们惊恐万分。
8 656c664e0ecfa47560efde859556ddfa     
一阵强风( gust的名词复数 ); (怒、笑等的)爆发; (感情的)迸发; 发作
参考例句:
  • her profuse skirt bosomed out with the gusts. 她的宽大的裙子被风吹得鼓鼓的。
  • turbulence is defined as a series of irregular gusts. 紊流定义为一组无规则的突风。
9 7zxxh     
adj.昂贵的,价值高的,豪华的
参考例句:
  • it must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
  • this dictionary is very useful,only it is a bit costly.这本词典很有用,左不过贵了些。
上一篇:生产氢气的天然方法 下一篇:
tag标签: weather climate
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:点击我更换图片
最新评论
网站地图