首页
登录
职称英语
The vast ice sheets of Greenland and Antarctica are melting faster than prev
The vast ice sheets of Greenland and Antarctica are melting faster than prev
游客
2024-08-02
20
管理
问题
The vast ice sheets of Greenland and Antarctica are melting faster than previously thought, and that melting is accelerating, according to a new report that verifies 18 years of melting via two independent techniques. Left unchecked, the extra water dumped into the oceans could push average global sea level six inches higher by 2050, the report finds. That would mark the ice sheets as the largest contributors to sea level rise, outstripping(超过)melting from Earth’s two other huge, frozen reservoirs, mountain glaciers and polar ice caps.
The new estimate of ice sheet melting—and the subsequent rise in sea level—outstrips more modest figures offered by the International Panel on Climate Change in 2007, the last time that international body published a comprehensive assessment of the ice sheets. "It’s going to be a concern for people in coastal areas," said Isabella Velicogna of the California Institute of Technology and NASA’s Jet Propulsion Laboratory, a co-author of the report online at Geophysical Research Letters. While six inches of additional sea height may sound small, the increase will distribute unevenly across the globe, Velicogna said, and disproportionately(不匀称地)impact low-lying countries like Bangladesh.
The study used two techniques to measure the melting of the ice sheets. The most thorough data set, from 1992 through the present, employed satellite radar readings of ice movement, soundings of ice thickness, and other grown-based observations to build a complete picture of the size of the ice sheets from month to month. The second technique drew on unique twin satellites, together called Grace, which measure minute differences in gravity over the entire Earth. The Grace satellites, an acronym for Gravity Recovery and Climate Experiment, were launched by NASA and the German Aerospace Center in 2002. [br] What can we learn about the most thorough data set from 1992 through the present?
选项
A、It didn’t employed satellite radar readings of ice movement.
B、It was got by some ground-based observations only.
C、It employed satellite radar readings and ground-based observations.
D、It couldn’t build a complete picture of the size of the ice sheets.
答案
C
解析
由题干中的the most thorough dataset,from 1992 through the present定位到第三段第二句。该句指出,1992年至今的最精确的数据集运用了卫星雷达读数和其他地面探测相结合的技术,由此确定答案为C)。
转载请注明原文地址:https://tihaiku.com/zcyy/3703094.html
相关试题推荐
Antarcticaisthehighest,coldest,andmost______placeonearth,acontinenttw
Everyyear,newrollercoastersarebuiltthatarebigger,faster,andwilde
Everyyear,newrollercoastersarebuiltthatarebigger,faster,andwilde
Thescientist_____Antarcticaandhewillgiveusatalkwhenhe_____back.A、h
ThevasticesheetsofGreenlandandAntarcticaaremeltingfasterthanprev
ThevasticesheetsofGreenlandandAntarcticaaremeltingfasterthanprev
ThevasticesheetsofGreenlandandAntarcticaaremeltingfasterthanprev
ThevasticesheetsofGreenlandandAntarcticaaremeltingfasterthanprev
ThevasticesheetsofGreenlandandAntarcticaaremeltingfasterthanprev
ThevasticesheetsofGreenlandandAntarcticaaremeltingfasterthanprev
随机试题
[originaltext]W:What’sgoingonhere?M:Youmean,what’shappening?Well,con
Leptiniseffectiveinreducingweightbutit’smanyyearsawaybeforehumansca
Menarespendingmoreandmoretimeinthekitchenencouragedbycelebrityc
期货价差套利要同时在相关合约上进行方向相反的交易,即同时建立一个多头头寸和一个空头头寸。()A、正确B、错误B当市场出现供给不足、需求旺盛
Mostpeopleoftendreamatnight.Whentheywakeinthemorningtheysayto
下列选项中,建筑应设置消防电梯的有()。A.某11层住宅建筑,层高3m
正常妊娠时,绒毛膜促性腺激素开始下降,是在末次月经后的( )。A.4~6周
关注公司资产是否安全完整,是否出现被抽逃、挪用、违规担保、冻结等情况,应当是(
( )是绩效考评过程中非常重要的一环工作,体现了现代绩效管理与传统的绩效管理的
职业生涯管理是组织进行培训与开发的重要内容,评估其效果的标准有()。A.劳动力市
最新回复
(
0
)