Distributions and air-sea fluxes of CO<sub>2</sub> in the summer Bering Sea

CHEN Liqi; GAO Zhongyong; SUN Heng; CHEN Baoshan; CAI Wei-jun

doi:10.1007/s13131-014-0483-9

Distributions and air-sea fluxes of CO₂ in the summer Bering Sea

doi: 10.1007/s13131-014-0483-9

1.
Key Laboratory of Global Change and Marine-Atmospheric Chemistry of State Oceanic Administration, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2.
Department of Marine Sciences, University of Georgia, Athens, GA 30602, USA

基金项目: The National Natural Science Foundation of China (NSFC) under contract Nos 40976116 and 40531007; the Fujian Science Foundation under contract No. 2009J06025; the SOA Youth Foundation Grant under contract No. 2012538; the Chinese Projects for Investigations and Assessments of the Arctic and Antarctic under contract Nos CHINARE2012: 01-04, 02-01, 03-04, 04-03, 04-04, and CHINARE2013: 01-04, 02-01, 03-04, 04-03, 04-04; the Chinese International Cooperation Projects under contract Nos IC201114, IC201201, IC201308, and HC120601; the Scientific Research Foundation of Third Institute of Oceanography, SOA under contract Nos 2012006 and 2014006.

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- 收稿日期: 2013-01-22
- 修回日期: 2013-06-16

Distributions and air-sea fluxes of CO₂ in the summer Bering Sea

1.
Key Laboratory of Global Change and Marine-Atmospheric Chemistry of State Oceanic Administration, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2.
Department of Marine Sciences, University of Georgia, Athens, GA 30602, USA

摘要

摘要: The 3rd Chinese National Arctic Research Expedition (CHINARE-Arctic Ⅲ) was carried out from July to September in 2008. The partial pressure of CO₂ (pCO₂) in the atmosphere and in surface seawater were determined in the Bering Sea during July 11-27, 2008, and a large number of seawater samples were taken for total alkalinity (TA) and total dissolved inorganic carbon (DIC) analysis. The distributions of CO₂ parameters in the Bering Sea and their controlling factors were discussed. The pCO₂ values in surface seawater presented a drastic variation from 148 to 563 μatm (1 μatm = 1.013 25×10^-1 Pa ). The lowest pCO₂ values were observed near the Bering Sea shelf break while the highest pCO₂ existed at the western Bering Strait. The Bering Sea generally acts as a net sink for atmospheric CO₂ in summer. The air-sea CO₂ fluxes in the Bering Sea shelf, slope, and basin were estimated at-9.4,-16.3, and-5.1 mmol/(m²·d), respectively. The annual uptake of CO₂ was about 34 Tg C in the Bering Sea.
- partialpressureofCO₂ /
- CO₂system /
- air-seaCO₂flux /
- BeringSea
Abstract: The 3rd Chinese National Arctic Research Expedition (CHINARE-Arctic Ⅲ) was carried out from July to September in 2008. The partial pressure of CO₂ (pCO₂) in the atmosphere and in surface seawater were determined in the Bering Sea during July 11-27, 2008, and a large number of seawater samples were taken for total alkalinity (TA) and total dissolved inorganic carbon (DIC) analysis. The distributions of CO₂ parameters in the Bering Sea and their controlling factors were discussed. The pCO₂ values in surface seawater presented a drastic variation from 148 to 563 μatm (1 μatm = 1.013 25×10^-1 Pa ). The lowest pCO₂ values were observed near the Bering Sea shelf break while the highest pCO₂ existed at the western Bering Strait. The Bering Sea generally acts as a net sink for atmospheric CO₂ in summer. The air-sea CO₂ fluxes in the Bering Sea shelf, slope, and basin were estimated at-9.4,-16.3, and-5.1 mmol/(m²·d), respectively. The annual uptake of CO₂ was about 34 Tg C in the Bering Sea.
- partial pressure of CO₂ /
- CO₂ system /
- air-sea CO₂ flux /
- Bering Sea

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参考文献(32)

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Distributions and air-sea fluxes of CO2 in the summer Bering Sea

doi: 10.1007/s13131-014-0483-9

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Distributions and air-sea fluxes of CO2 in the summer Bering Sea

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出版历程

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Distributions and air-sea fluxes of CO₂ in the summer Bering Sea

Distributions and air-sea fluxes of CO₂ in the summer Bering Sea