英语科普小知识 南北半球气温差异导致热带降水模式改变

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1、海量资料下载 免费学习英语 (申请网址)洛基国际英语 竭诚为您服务One often ignored consequence of global climate change is that the Northern Hemisphere is becoming warmer than the Southern Hemisphere, which could significantly alter tropicalprecipitation(降水,沉淀)(降水,沉淀) patterns, according to a new study by climatologists from the

2、University of California, Berkeley, and the University of Washington, Seattle. Such a shift could increase or decrease seasonal rainfall in areas such as the Amazon, sub-Saharan Africa or East Asia, leaving some areas wetter and some drier than today.“A key finding is a tendency to shift tropical ra

3、infall northward, which could mean increases in monsoon weather systems in Asia or shifts of the wet season from south to north in Africa and South America,“ said UC Berkeley graduate student Andrew R. Friedman, who led the analysis.“Tropical rainfall likes the warmer hemisphere,“ summed up John Chi

4、ang, UC Berkeley associate professor of geography and a member of the Berkeley Atmospheric Sciences Center. “As a result, tropical rainfall cares a lot about the temperature difference between the two hemispheres.“Chiang and Friedman, along with University of Washington colleagues Dargan M. W. Frier

5、son and graduate student Yen-Ting Hwang, report their findings in a paper now accepted by the Journal of Climate, a publication of the American Meteorological Society. It will appear in an upcoming issue.Generally, rainfall patterns fall into bands at specific latitudes, such as the Intertropical Co

6、nvergence Zone. The researchers say that a warmer northern hemisphere causes atmospheric overturning to weaken in the north and strengthen in the south, shifting rain bands northward.The regions most affected by this shift are likely to be on the bands north and south edges, Frierson said.“It really

7、 is these borderline regions that will be most affected, which, not coincidentally, are some of the most vulnerable places: areas like the Sahel where rainfall is variable from year to year and the people tend to be dependent on subsistence agriculture,“ said Frierson, associate professor of atmosph

8、eric sciences. “We are making major climate changes to the planet and to expect that rainfall patterns would stay the same is very nave.“一个经常被忽略的全球气候变化的后果是,北半球比南半球,这可能显着改变热带降水(降水,沉淀)降水(降水,沉淀)模式,根据一项新的研究由大学加州大学伯克利分校的气候学家温暖,西雅图华盛顿大学的。这种转变海量资料下载 免费学习英语 (申请网址)洛基国际英语 竭诚为您服务可能会增加或减少季节性降雨的地区,如亚马逊,撒哈拉以南非洲地

9、区或东亚,留下一些地区多雨及一些比今天少雨。“加州大学伯克利分校的研究生安德鲁弗里德曼说:”一个关键的发现是一个热带降雨向北转移的趋势,这可能意味着增加在亚洲的季风天气系统或雨季从南到北,在非洲和南美洲的变化,谁率领分析。“热带降雨喜欢温暖的半球”,总结了江俊辉,加州大学伯克利分校的地理学副教授和大学伯克利分校大气科学中心的成员。“其结果是,很多热带降雨关心两个半球之间的温差。”蒋介石和弗里德曼,以及驻华盛顿的同事达根 MW 瑞森和研究生黄颜婷大学,现接受杂志的气候,美国气象学会出版的一纸报告他们的发现。它会出现在即将发行。一般来说,降雨模式陷入乐队在特定纬度地区,如辐合带。研究人员说,一个温暖的北半球会导致大气倾覆在北部减弱和加强在南方,转移雨带北移。这种转变影响最严重的地区可能是带的北部和南部边缘,瑞森说。“这真的是这些边缘地区,将受到最大的影响,这不是巧合,是一些最脆弱的地方:像萨赫勒地区降雨变量每年,人们往往要依赖农业为生,”瑞森说,大气科学副教授。“我们正在主要的气候变化的星球,并期望降雨模式将保持不变,是非常幼稚的。”“成千上万人疯狂下载。 。 。 。 。 。更多价值连城的绝密英语学习资料,洛基内部秘密英语,技巧,策略请在 网上 申请报名”

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