THE OCEANIC SALT PUMP: DOES IT CONTRIBUTE TO THE GLACIAL-INTERGLACIAL DIFFERENCE IN ATMOSPHERIC CO2 CONTENT?

被引：21

作者：

Broecker, W. ^{[1
]}

Peng, T. ^{[2
]}

机构：

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

[2] Oak Ridge Natl Lab, Oak Ridge, TN USA

来源：

GLOBAL BIOGEOCHEMICAL CYCLES | 1987年 / 1卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1029/GB001i003p00251

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sea ice formation drives salt from the surface to the deep sea. In so doing it lowers the salinity of polar surface waters. We show here that this reduction in turn lowers the CO2 partial pressure of polar surface waters and hence also of the atmosphere. We propose that during glacial time when more sea ice existed, this pumping action may have been stronger. If so, part of the glacial to interglacial atmospheric CO2 content change observed in ice cores may have been driven by the ocean's salt pump.

引用

页码：251 / 259

页数：9

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