Climate-Driven Fluctuations in Anthropogenic CO2 Uptake by the East Sea in the North Pacific Ocean

被引：2

作者：

Kim, So-Yun ^{[1
]}

Lee, Kitack ^{[2
]}

Lee, Tongsup ^{[1
]}

Kim, Ja-Myung ^{[2
]}

Han, In-Seong ^{[3
]}

机构：

[1] Pusan Natl Univ, Dept Oceanog, Busan, South Korea

[2] Pohang Univ Sci & Technol, Div Environm Sci & Engn, Pohang, South Korea

[3] Natl Inst Fisheries Sci, Ocean Climate & Ecol Res Div, Busan, South Korea

来源：

GEOPHYSICAL RESEARCH LETTERS | 2023年 / 50卷 / 21期

基金：

新加坡国家研究基金会;

关键词：

anthropogenic CO2; carbon dioxide; carbon uptake; climate variability; Arctic Oscillation; East Sea; CARBONIC-ACID; JAPAN SEA; WATER; DISSOCIATION; CONSTANTS; SEAWATER; SINK;

D O I：

10.1029/2023GL105819

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Ocean ventilation is a key mechanism for transporting anthropogenic CO2 (C-ANTH) from the ocean surface toward its interior. We investigated the link between ocean ventilation and C-ANTH increase in the East Sea using data from surveys conducted in 1992, 1999, 2007, and 2019. Between 1992 and 1999, the East Sea Intermediate Water (300-1,500 m) accumulated C-ANTH at a rate of 0.3 +/- 0.1 mol C m(-2) yr(-1). However, in the subsequent period (1999-2007) this rate decreased to <0.1 +/- 0.1 mol C m(-2) yr(-1). There was a resurgence in the C-ANTH increase rate between 2007 and 2019, reaching 0.4 +/- 0.1 mol C m(-2) yr(-1). The East Sea Intermediate Water ventilation changes, inferred from the changes in water column O-2 level and the Arctic Oscillation-driven winter surface temperature in the deep water formation region, were responsible for the periodic decline and recovery in C-ANTH increase.

引用

页数：9

共 48 条

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