| 全球海洋碳循环三维数值模拟研究 |
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| 引用本文： | 鲍颖,乔方利,宋振亚.全球海洋碳循环三维数值模拟研究[J].海洋学报,2012,34(3):19-26. |
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| 作者姓名： | 鲍颖 乔方利 宋振亚 |
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| 作者单位： | 国家海洋局 第一海洋研究所, 山东 青岛 266061 |
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| 基金项目： | 国家自然科学重点基金项目"大气-海浪-海洋环流相互作用机理研究及耦合数值模式改进" (40730842);国家重点基础研究发展计划("973"计划)(2010CB950504)。 |
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| 摘 要： | 基于海洋环流模式POP和生物地球化学模型OCMIP-2,建立了全球海洋碳循环模式,并用于对全球海洋碳循环的模拟研究。该模式在大气CO2为283×10-6条件下,积分3 100 a,达到工业革命前的平衡态。在此基础上,用历史时期观测的大气CO2浓度进行强迫,模拟了历史时期的海洋碳循环。模拟的无机碳浓度、总碱度与基于观测得到的结果基本一致,模式能够较好地模拟全球碳循环过程。模拟结果表明,在北半球中高纬度和南半球的中纬度,海洋是大气CO2的主要汇区;在赤道南北纬20°之间和南大洋50°S以南,海洋表现为大气CO2的源区。在1980s海洋吸收CO2速率(以C计)为1.38 Pg/a,1990s为1.55 Pg/a。海洋中人为碳在北大西洋含量最大,向下到达海底并向南输运到30°N附近;在南极附近,浓度较小,深度达到3 000 m;在中纬度,人为碳被限制在温跃层以上。
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| 关 键 词： | 海洋碳循环模式 海气CO2通量 海洋人为碳 |
| 收稿时间： | 5/7/2010 12:00:00 AM |
| 修稿时间： | 2011/1/11 0:00:00 |
The 3-dimensional numerical simulation of global ocean carbon cycle |
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| BAO Ying,QIAO Fangli and SONG Zhenya.The 3-dimensional numerical simulation of global ocean carbon cycle[J].Acta Oceanologica Sinica (in Chinese),2012,34(3):19-26. |
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| Authors: | BAO Ying QIAO Fangli and SONG Zhenya |
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| Institution: | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| 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. |
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| Keywords: | ocean carbon cycle model air-sea CO2 flux ocean anthropogenic carbon |
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