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

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CHEN Liqi, GAO Zhongyong, SUN Heng, CHEN Baoshan, CAI Wei-jun. Distributions and air-sea fluxes of CO2 in the summer Bering Sea[J]. Acta Oceanologica Sinica, 2014, 33(6): 1-8. doi: 10.1007/s13131-014-0483-9

Citation:

CHEN Liqi, GAO Zhongyong, SUN Heng, CHEN Baoshan, CAI Wei-jun. Distributions and air-sea fluxes of CO₂ in the summer Bering Sea[J]. Acta Oceanologica Sinica, 2014, 33(6): 1-8. doi: 10.1007/s13131-014-0483-9

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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

Received Date: 2013-01-22
Rev Recd Date: 2013-06-16

Abstract

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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References(32)

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