A Southern Ocean trigger for Northwest Pacific ventilation during the Holocene?

被引：18

作者：

Rella, S. F. ^{[1
]}

Uchida, M. ^{[1
,2
]}

机构：

[1] Natl Inst Environm Studies, Ctr Environm Measurement & Anal, Tsukuba, Ibaraki 3058506, Japan

[2] Japan Agcy Marine Earth Sci & Technol JAMSTEC, Res Inst Global Change, Yokosuka, Kanagawa 2370061, Japan

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

关键词：

SEA-SURFACE TEMPERATURE; DEEP-WATER; ARCTIC OSCILLATION; INTERMEDIATE-WATER; RESERVOIR AGES; CLIMATE-CHANGE; VARIABILITY; ICE; OKHOTSK; C-14;

D O I：

10.1038/srep04046

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：

Holocene ocean circulation is poorly understood due to sparsity of dateable marine archives with submillennial-scale resolution. Here we present a record of mid-depth water radiocarbon contents in the Northwest (NW) Pacific Ocean over the last 12.000 years, which shows remarkable millennial-scale variations relative to changes in atmospheric radiocarbon inventory. Apparent decoupling of these variations from regional ventilation and mixing processes leads us to the suggestion that the mid-depth NW Pacific may have responded to changes in Southern Ocean overturning forced by latitudinal displacements of the southern westerly winds. By inference, a tendency of in-phase related North Atlantic and Southern Ocean overturning would argue against the development of a steady bipolar seesaw regime during the Holocene.

引用

页数：11

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