Gases in ice cores

被引：39

作者：

Bender, M

Sowers, T

Brook, E

机构：

[1] PENN STATE UNIV, DEPT GEOSCI, UNIVERSITY PK, PA 16802 USA

[2] WASHINGTON STATE UNIV, DEPT GEOL, VANCOUVER, WA 98686 USA

[3] WASHINGTON STATE UNIV, DEPT ENVIRONM SCI, VANCOUVER, WA 98686 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1997年 / 94卷 / 16期

关键词：

D O I：

10.1073/pnas.94.16.8343

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：

Air trapped in glacial ice offers a means of reconstructing variations in the concentrations of atmospheric gases over time scales ranging from anthropogenic (last 200 yr) to glacial/interglacial (hundreds of thousands of years), In this paper, we review the glaciological processes by which air is trapped in the ice and discuss processes that fractionate gases in ice cores relative to the contemporaneous atmosphere, We then summarize concentration-time records for CO2 and CH4 over the last 200 yr, Finally, we summarize concentration-time records for CO2 and CH4 during the last two glacial-interglacial cycles, and their relation to records of global climate change.

引用

页码：8343 / 8349

页数：7

共 46 条

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