首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In the world of climate change, it is in the Earth’s cold regions where trends can most easily be seen. The cryosphere, where wa
In the world of climate change, it is in the Earth’s cold regions where trends can most easily be seen. The cryosphere, where wa
admin
2015-09-30
59
问题
In the world of climate change, it is in the Earth’s cold regions where trends can most easily be seen. The cryosphere, where water is found in solid form, is among the most sensitive regions to temperature change.
The sensitivity of ice and snow to temperature changes is an early indicator of even relatively small differences, says University of Colorado at Boulder senior researcher Richard Armstrong. He has found that today’s receding and thinning sea ice, mountain glacier mass losses, decreasing snow extent, melting permafrost (永久冻土), and rising sea level are all consistent with war¬ming.
Global mean temperatures have risen one degree Fahrenheit over the past 100 years, with more than half of the increase occurring in the last 25 years, observes Armstrong who is affiliated with the National Snow and Ice Data Center headquartered at CU-Boulder.
"As slight as that may seem, it’s enough to make a difference," said Armstrong. "Now, long-term monitoring of a series of cold region, or cryospheric, parameters (参数) shows that for several decades the amounts of snow and ice around the world have been decreasing. "
The extent of Arctic sea ice is shrinking by about 3 percent per decade, but the trends are not uniform. While recent studies have indicated that the ice thickness also had decreased over several decades, new information shows that the ice may have thinned rapidly, Armstrong said. Examination of springtime ice thickness in the Arctic Ocean indicates that the mean ice thickness decreased 1. 5 meters (4. 8 feet) between the mid-1980s and early 1990s.
To mark its 25th anniversary, the National Snow and Ice Data Center has organized a special session at the 2001 Fall Meeting of American Geophysical Union, taking place this week in San Francisco, that illuminates overall changes in the cryosphere.
The session begins Tuesday and extends through Thursday afternoon, with 75 contributions from all areas of cryospheric study. Papers and posters include examinations of lake and river ice, glacier dynamics, and mass ice balance studies in polar and continental glaciers, regional and polar snow cover trends, and variations in Canadian ice cap elevations.
The special session of the National Snow and Ice Data Center was organized to______.
选项
A、attract more contributions to the cryospheric regions
B、make more people realize the threats of climate change
C、stimulate further research into the changes in ice thickness
D、celebrate its 25th anniversary and discuss changes in the cryosphere
答案
D
解析
细节题。根据文章最后两段,国家冰雪数据中心组织一次特殊的会议,在于庆祝其25周年纪念(to mark its 25th anniversary),所以D是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/acWO777K
0
在职攻硕英语联考
相关试题推荐
Theauthortakesgreatcaretoestablishanaccurateaccountingofthe______oftheviolenceduringtheNankingMassacre.
A、Georgewasnotplayingwell.B、Georgealwayslosestempereasily.C、Georgeshouldhavewonthematch.D、Georgeisnomatchfor
Evenduringthehorseandcarriagedays,trafficinbigcitieswasoftenheavy.Policeofficershadtobestationedfulltimedi
Japan,afterspectacularpost-wareconomicgrowth,becametheworld’ssecond-biggesteconomy.
TheIndustrialRevolutionmarkedamajorturningpointinhumans’relationshipwiththeirenvironment.It【C1】______changedevery
TheIndustrialRevolutionmarkedamajorturningpointinhumans’relationshipwiththeirenvironment.It【C1】______changedevery
A、Buysomegrocery.B、Makethesalad.C、Additemstotheshoppinglist.D、Changetheflavorofthesalad.A女士说:你不觉得这道沙拉需要其他调料添些味
Thisdriverwasexperiencedenoughtopreventwhat________mighthavebeenaterribleaccident.
TheInternethasmadesomemensorichandambitiousthatEarthnolongerseemslargeenoughtocontaintheirfortunesoregos.
TheInternethasmadesomemensorichandambitiousthatEarthnolongerseemslargeenoughtocontaintheirfortunesoregos.
随机试题
Thisnovelis______agoodbook,buttherearemanythat______better.
下列选项中,属于格拉斯哥昏迷评分的项目是
A.中和胃酸作用B.抑制胃酸分泌C.促进黏液合成D.阻断促胃液素受体E.阻断乙酰胆碱受体氢氧化铝的主要作用是()
患者,男性,28岁,3夭前出现高热,体温39.9℃,胸痛,咳嗽,咯痰。胸片后前位右上肺野呈大片状密度增高阴影,下缘整齐,以水平裂为界,上缘模糊不清,在实变的阴影中间见到含气支气管影。考虑是( )
贾某在路边将马某打倒在地,劫取其财物。离开时贾某为报复马某之前的反抗,往其胸口轻踢了一脚,不料造成马某心脏骤停死亡。设定贾某对马某的死亡具有过失,下列哪一分析是正确的?
下列不属于速动资产的是()。
中熙公司的注册地是北京。中熙公司将一栋商业大楼出租给东大公司使用,并一直采用成本模式进行计量。2007年1月1日,由于北京的房地产交易市场的成熟,具备了采用公允价值模式计量的条件,中熙公司决定对该投资性房地产从成本模式转换为公允价值模式计量。该大楼原价60
下列各项中,在不考虑优先股的情况下,不会同时影响经营杠杆系数和财务杠杆系数的因素是()。
禀赋效应形容当一个人拥有某项物品或资产的时候,他对该物品或资产的价值评估要大于没有拥有这项物品或资产的时候。根据上述定义,下列未体现禀赋效应的是:
在世界经济全球化、市场化和信息化成为不可阻挡潮流的今天,青年文化阵地的争夺,关系到中华民族的兴衰存亡和中国共产党的执政地位。当前,必须从全面建设小康社会的全局和实现中华民族伟大复兴的高度,深刻认识加强青年文化建设的战略意义,牢牢把握先进文化的前进方向和与时
最新回复
(
0
)