THE ICE RECORD OF GREENHOUSE GASES

被引：270

作者：

RAYNAUD, D ^{[1
]}

JOUZEL, J ^{[1
]}

BARNOLA, JM ^{[1
]}

CHAPPELLAZ, J ^{[1
]}

DELMAS, RJ ^{[1
]}

LORIUS, C ^{[1
]}

机构：

[1] CEA SACLAY, MODELISAT CLIMAT & ENVIRONM LAB, F-91191 GIF SUR YVETTE, FRANCE

来源：

SCIENCE | 1993年 / 259卷 / 5097期

关键词：

D O I：

10.1126/science.259.5097.926

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：

Gases trapped in polar ice provide our most direct record of the changes in greenhouse gas levels during the past 150,000 years. The best documented trace-gas records are for CO2 and CH4. The measurements corresponding to the industrial period document the recent changes in growth rate. The variability observed over the last 1000 years constrains the possible feedbacks of a climate change on the trace gases under similar conditions as exist today. Changes in the levels of greenhouse gases during the glacial-interglacial cycle overall paralleled, at least at high southern latitudes, changes in temperature; this relation suggests that greenhouse gases play an important role as an amplifier of the initial orbital forcing of Earth's climate and also helps to assess the feedbacks on the biogeochemical cycles in a climate system in which the components are changing at different rates.

引用

页码：926 / 934

页数：9

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