| 南极和北极地区在全球变化中的作用研究 |
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| 引用本文： | 陈立奇.南极和北极地区在全球变化中的作用研究[J].地学前缘,2002,9(2):245-253. |
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| 作者姓名： | 陈立奇 |
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| 作者单位： | 国家海洋局,极地考察办公室,北京,100860 |
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| 基金项目： | “九五”国家重点科技资助项目 ( 98 92 7 0 1)，中国首次
北极科学考察资助项目，国家自然科学基金重点资助项目
( 4 9830 0 1) |
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| 摘 要： | 近半个世纪的调查基本揭示了极地在地球系统中的作用。两极保持了世界 99%的冰川 ,相当于全球淡水的 78% ,全部融化将使地球海平面上升 70m。极区又是世界气候系统中最活泼的组成 ,通过其冰盖、大气和周围海域的强烈耦合过程而影响全球。同时 ,南极上空臭氧空洞的出现 ,北极地区冻土带的北移等都表明全球变化也在明显地影响着两极。中国 2 0年来对南极的考察过程中 ,建立两个南极科学考察站 ,拥有极地考察破冰船 ,1999年开展了中国首次北极科学考察 ,对南北极的区域特征及其在全球变化中的作用提出了新的认识。
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| 关 键 词： | 全球变化 北极 南极 国家研究计划 |
| 文章编号： | 1005-2321(2002)02-0245-09 |
| 修稿时间： | 2001年9月17日 |
STUDY ON THE ROLE OF THE ARCTIC AND ANTARCTIC REGIONS IN GLOBAL CHANGE |
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| CHEN Li\|qi.STUDY ON THE ROLE OF THE ARCTIC AND ANTARCTIC REGIONS IN GLOBAL CHANGE[J].Earth Science Frontiers,2002,9(2):245-253. |
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| Authors: | CHEN Li\|qi |
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| Abstract: | It is more clear to understand the role of the Arctic and Antarctic regions in the Earth's system through investigations for last 50 years. Both polar regions keep 99% of the world's glacier, approximately 78% of freshwater. It would cause the sea level to rise 65 meters if all the glaciers melt out from the polar regions. The polar regions are very important and active elements in the world climate system through a strong interaction between the ice, atmosphere and surrounding waters. The global change appears to affect the Arctic and Antarctic regions such as the events of ozone hole in the Antarctic atmosphere and north moving of permafrost zone in the Arctic region. China has established two Antarctic research stations and an icebreaker,and has made expeditions for last 20 years. Chinese scientists have put forward new opinions for regional characteristics of the Arctic and Antarctic and its role in global change |
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| Keywords: | global change the Arctic the Antarctic state projects |
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