Sea-ice switches and abrupt climate change

被引：81

作者：

Gildor, H ^{[1
]}

Tziperman, E

机构：

[1] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA

[2] Weizmann Inst Sci, Dept Environm Sci, IL-76100 Rehovot, Israel

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2003年 / 361卷 / 1810期

关键词：

climate; sea ice; thermohaline circulation; abrupt climate change; glacial cycles;

D O I：

10.1098/rsta.2003.1244

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We propose that past abrupt climate changes were probably a result of rapid and extensive variations in sea-ice cover. We explain why this seems a perhaps more likely explanation than a purely thermohaline circulation mechanism. We emphasize that because of the significant influence of sea ice on the climate system, it seems that high priority should be given to developing ways for reconstructing high-resolution (in space and time) sea-ice extent for past climate-change events. If proxy data can confirm that sea ice was indeed the major player in past abrupt climate-change events, it seems less likely that such dramatic abrupt changes will occur due to global warming, when extensive sea-ice cover will not be present.

引用

页码：1935 / 1942

页数：8

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