The 3-dimensional numerical simulation of global ocean carbon cycle

BAO Ying; QIAO Fangli; SONG Zhenya

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BAO Ying, QIAO Fangli, SONG Zhenya. The 3-dimensional numerical simulation of global ocean carbon cycle[J]. Haiyang Xuebao, 2012, 34(3): 19-26.

Citation:

BAO Ying, QIAO Fangli, SONG Zhenya. The 3-dimensional numerical simulation of global ocean carbon cycle[J]. Haiyang Xuebao, 2012, 34(3): 19-26.

BAO Ying, QIAO Fangli, SONG Zhenya. The 3-dimensional numerical simulation of global ocean carbon cycle[J]. Haiyang Xuebao, 2012, 34(3): 19-26.

Citation:

BAO Ying, QIAO Fangli, SONG Zhenya. The 3-dimensional numerical simulation of global ocean carbon cycle[J]. Haiyang Xuebao, 2012, 34(3): 19-26.

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The 3-dimensional numerical simulation of global ocean carbon cycle

First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Received Date: 2010-05-07
Rev Recd Date: 2011-01-11

Abstract

Abstract

A general ocean carbon cycle model which is based on the ocean circulation model of POP and the biogeochemical model of OCMIP-2, is employed to simulate the global ocean carbon cycle. After spinning-up for 3 100 years, the model reaches the pre-industrial stable state, under the pre-industrial condition that the CO₂ concentration in atmosphere is 283×10^-6. Then the model is forced by the observed historical atmosphere CO₂ concentration. The distributions of the simulated dissolved inorganic carbon and alkalinity are consistent with the available observations. The model results show that in the mid-and high-latitude of the northern hemisphere and the mid-latitude of the southern hemisphere, ocean is the sink of CO₂, while in the equatorial area and south of 50°S, ocean is the source of CO₂. The global air-sea flux of CO₂ is 1.38 Pg/a in 1980s, while it reaches 1.55 Pg/a in 1990s. In the north Atlantic, the anthropogenic CO₂ concentration is the highest in the global ocean, and the anthropogenic CO₂ can reach the ocean deep layer and can be transported to 30°N, while in the vicinity of the Antarctic, the concentration is much lower. In the mid-latitude area, the anthropogenic carbon is trapped in the upper layer shallower than 1 000 m mainly by the thermocline and vertical mixing.
- ocean carbon cycle model,
- air-sea CO₂ flux,
- ocean anthropogenic carbon

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References(34)

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