地球物理可以减缓南极冰川消融-凯发k8官网

地球物理可以减缓南极冰川消融
文章来源:未知 文章作者:enread 发布时间:2015-11-13 06:16 字体: [ ] 
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the anticipated melting of the massive west antarctic ice sheet could be slowed by two big factors that are largely overlooked in current computer models, according to a new study. the findings, published online in nature communications, suggest that the impact on global sea levels from the retreating ice sheet could be less drastic - or at least more gradual -- than recent computer simulations have indicated.
 
over the past year, numerous studies have warned that parts of the west antarctic ice sheet are on the 1 of a 2 retreat. just last week a high-profile research paper forecast that this could lead eventually to a rise in global sea levels of as much as three metres.
 
the authors of the new nature communications paper, however, focus on two geophysical elements that they say aren't adequately reflected in computer simulations for this region: the surprisingly powerful gravitational pull of the immense ice sheet on surrounding water, and the unusually fluid nature of the 3 beneath the bedrock that the ice sits on. 
 
"the fate of the polar ice sheets in a warming world is a major concern for policy 4 -- and attention is rightly focused on the importance of restraining co2 5 and preparing for rising sea levels," says lead author natalya gomez, an assistant professor of earth and planetary sciences at mcgill university in montreal. "but our study shows that for antarctica, in particular, computer models also need to take into account how gravitational effects and variations in earth structure could affect the pace of future ice-sheet loss."


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1 gutzq     
n.边,边缘;v.接近,濒临
参考例句:
  • the country's economy is on the verge of collapse.国家的经济已到了崩溃的边缘。
  • she was on the verge of bursting into tears.她快要哭出来了。
2 jd4y5     
n.逃走的人,逃亡,亡命者;adj.逃亡的,逃走的
参考例句:
  • the police have not found the runaway to date.警察迄今没抓到逃犯。
  • he was praised for bringing up the runaway horse.他勒住了脱缰之马受到了表扬。
3 y7tzs     
n.斗篷,覆罩之物,罩子;v.罩住,覆盖,脸红
参考例句:
  • the earth had donned her mantle of brightest green.大地披上了苍翠欲滴的绿色斗篷。
  • the mountain was covered with a mantle of snow.山上覆盖着一层雪。
4 22a4efff03ac42c1785d09a48313d352     
n.制造者,制造商(maker的复数形式)
参考例句:
  • the makers of the product assured us that there had been no sacrifice of quality. 这一产品的制造商向我们保证说他们没有牺牲质量。
  • the makers are about to launch out a new product. 制造商们马上要生产一种新产品。 来自《简明英汉词典》
5 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
参考例句:
  • most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
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tag标签: ice antarctic sheet
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