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.
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References
Anderson L G, Falck E, Jones E P, et al. 2004. Enhanced uptake of atmospheric CO2 during freezing of seawater: A field study in Storfjorden, Svalbard. Journal of Geophysical Research, 109(C6): C06004
Banse K, English D C. 1999. Comparing phytoplankton seasonality in the eastern and western subarctic Pacific and the western Bering Sea. Progress in Oceanography, 43(2–4): 235–288
Bates N R, Best M H P, Hansell D A. 2005. Spatio-temporal distribution of dissolved inorganic carbon and net community production in the Chukchi and Beaufort Seas. Deep-Sea Research Part II: Topical Studies in Oceanography, 52(24–26): 3303–3323
Bates N R, Mathis J T, Jeffries M A. 2010. Air-sea CO2 fluxes on the Bering Sea shelf. Biogeosciences Discussions, 7: 7271–7314
Bauer J E, Cai W-J, Raymond P A, et al. 2013. The changing carbon cycle of the coastal ocean. Nature, 504(7478): 61–70
Borges A V, Delille B, Frankignoulle M. 2005. Budgeting sinks and sources of CO2 in the coastal ocean: Diversity of ecosystems counts. Geophysical Research Letters, 32: L14601
Cai Weijun, Dai Minhan. 2004. Comment on “Enhanced Open Ocean Storage of CO2 from Shelf Sea Pumping”. Science, 306(5701): 1477c
Cai W J, Dai M H, Wang Y C, et al. 2004. The biogeochemistry of inorganic carbon and nutrients in the Pearl River estuary and the adjacent Northern South China Sea. Continental Shelf Research, 24(12): 1301–1319
Cai Weijun, Dai Minhan, Wang Yongchen. 2006. Air-sea exchange of carbon dioxide in ocean margins: A province-based synthesis. Geophysical Research Letters, 33(12): L12603
Chen C-T A. 1993. Carbonate chemistry of the wintertime Bering Sea marginal ice zone. Continental Shelf Research, 13: 67–67
Chen C T A, Andreev A, Kim K R, et al. 2004. Roles of continental shelves and marginal seas in the biogeochemical cycles of the North Pacific Ocean. Journal of Oceanography, 60(1): 17–44
Chen Liqi, Gao Zhongyong. 2007. Spatial variability in the partial pressures of CO2 in the northern Bering and Chukchi seas. Deep-Sea Research Part II, 54: 2619–2629
Chen Liqi, Gao Zhongyong, Wang weiqiang, et al. 2004. Characteristics of pCO2 in surface water of the Bering Abyssal Plain and their effects on carbon cycle in the western Arctic Ocean. Science in China Series D: Earth Sciences, 47(11): 1035–1044
Clement Kinney J, Maslowski W, Okkonen S. 2009. On the processes controlling shelf-basin exchange and outer shelf dynamics in the Bering Sea. Deep-Sea Research Part II: Topical Studies in Oceanography, 56(17): 1351–1362
Cross J N, Mathis J T, Bates N R. 2012. Hydrographic controls on net community production and total organic carbon distributions in the eastern Bering Sea. Deep-Sea Research Part II: Topical Studies in Oceanography, 65–70: 98–109
Dickson A G, Goyet C. 1994. Handbook of methods for the analysis of the various parameters of the carbon dioxide system in sea water. v 2. ORNL/CDIAC-74. Washington, DC: US Department of Energy
Dickson A G, Sabine C L, Christian J R. 2007. Guide to Best Practices for Ocean CO2 Measurements. PICES Special Publication 3. Sidney, British Columbia: North Pacific Marine Science Organization
Fransson A, Chierici M, Nojiri Y. 2006. Increased net CO2 outgassing in the upwelling region of the southern Bering Sea in a period of variable marine climate between 1995 and 2001. Journal of Geophysical Research-Oceans, 111(C8): C08008
Fransson A, Chierici M, Nojiri Y. 2009. New insights into the spatial variability of the surface water carbon dioxide in varying sea ice conditions in the Arctic Ocean. Continental Shelf Research, 29: 1317–1328
Gao Zhongyong, Sun Heng, Chen Liqi, et al. 2012. Summertime freshwater fractions in the surface water of the western Arctic Ocean evaluated from total alkalinity. Advances in Polar Science, 23(2): 95–102
Kinder T H, Coachman L K. 1978. The front overlaying the continental slope in the eastern Bering Sea. Journal of Geophysical Research-Oceans, 83(455): l–4559
Kinder T H, Coachman L K, Galt J A. 1975. The Bering slope current system. Journal of Physical Oceanography, 5(23): 23l–244
Okkonen S R. 2001. Altimeter observations of the Bering Slope Current eddy field. Journal of Geophysical Research, 106(C2): 2465–2476
Springer A M, Mcroy C P, Flint M V. 1996. The Bering Sea Green Belt: shelf-edge processes and ecosystem production. Fisheries Oceanography, 5(3–4): 205–223
Thomas H, Bozec Y, Elkalay K, et al. 2004. Enhanced open ocean storage of CO2 from shelf sea pumping. Science, 304(5673): 1005
Walsh J J. 1989. Arctic carbon sinks: present and future. Global Biogeochem Cycles, 3(4): 393–411
Walsh J J. 1991. Importance of continental margins in the marine biogeochemical cycling of carbon and nitrogen. Nature, 350: 53–55
Walsh J J, Dieterle D A. 1994. CO2 cycling in the coastal ocean. I-A numerical analysis of the southeastern Bering Sea with applications to the Chukchi Sea and the northern Gulf of Mexico. Progress in Oceanography, 34(4): 335–392
Wanninkhof R. 1992. Relationship between gas exchange and wind speed over the ocean. Journal of Geophysical Research, 97(C5): 7373–7381
Weiss R F. 1974. Carbon dioxide in water and seawater: the solubility of a non-ideal gas. Marine Chemistry, 2(3): 203–215
Wiese F K, Van Pelt T I, Wiseman W J. 2012. Bering Sea linkages Introduction. Deep-Sea Research Part II: Topical Studies in Oceanography, 65–70: 2–5
Wolf-Gladrow D A, Zeebe R E, Klaas C, et al. 2007. Total alkalinity: the explicit conservative expression and its application to biogeochemical processes. Marine Chemistry, 106(1): 287–300
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Foundation item: 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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Chen, L., Gao, Z., Sun, H. et al. Distributions and air-sea fluxes of CO2 in the summer Bering Sea. Acta Oceanol. Sin. 33, 1–8 (2014). https://doi.org/10.1007/s13131-014-0483-9
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DOI: https://doi.org/10.1007/s13131-014-0483-9