A circumpolar gravest empirical mode for the Southern Ocean hydrography

被引：86

作者：

Sun, C ^{[1
]}

Watts, DR ^{[1
]}

机构：

[1] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS | 2001年 / 106卷 / C2期

关键词：

D O I：

10.1029/2000JC900112

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

Historical hydrographic data from the Southern Ocean are projected into a baroclinic stream function space, generating a three-dimensional gravest empirical mode (GEM) parameterized by pressure, geopotential height, and longitude. The low-dimensional GEM projection is intrinsically steady, vertically coherent, and equivalent barotropic. The GEM fields capture more than 97% of the total density and temperature variance in the Antarctic Circumpolar Current region.

引用

页码：2833 / 2855

页数：23

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