Recent trends in Arctic Ocean mass distribution revealed by GRACE

被引：59

作者：

Morison, James

Wahr, John

Kwok, Ron

Peralta-Ferriz, Cecilia

机构：

[1] Univ Washington, Appl Phys Lab, Polar Sci Ctr, Seattle, WA 98105 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[4] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2007年 / 34卷 / 07期

关键词：

D O I：

10.1029/2006GL029016

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Measurements of ocean bottom pressure by the Gravity Recovery and Climate Experiment (GRACE) and new in situ bottom pressure measurements confirm the accuracy and utility of GRACE measurements in the Arctic Ocean. They reveal a declining trend in bottom pressure that corresponds to mass changes due to decreasing upper ocean salinities near the North Pole and in the Makarov Basin. The spatial distribution and magnitude of these trends suggest the Arctic Ocean is reverting from the cyclonic state characterizing the 1990s to the anticyclonic state that was prevalent prior to the 1990s.

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页数：6

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