Simulation of ^(14)C in IAP/LASG L30T63 Ocean Model  

作　　者：李清泉 石广玉 

机构地区：[1]Laboratory for Climate Studies of China Meteorological Administration, National Climate Center, Beijing 100081 [2]State Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of AtmosphericPhysics, Chinese Academy of Sciences, Beijing 100029

出　　处：《Acta meteorologica Sinica》2005年第4期436-446,共11页

基　　金：Supported by the Project (40105008) from the National Natural Science Foundation of China and the Climate Change Projectfrom the China Meteorological Administration (QM2004, QM2005, and CCSF2005-1).

摘　　要：^(14)C plays an important role in the study of ocean circulation andanthropogenic CO_2. Radioactive ^(14)C is usually used in ocean carbon circulation model to test thephysical performance of model. In the present paper, a ^(14)C model is established and coupled withthe IAP/LASG L30T63 global ocean circulation model to simulate the distribution of natural ^(14)Cin oceans and the penetration and uptake of ^(14)C in oceans after industrial revolution and nuclearbomb test. The simulation of natural ^(14)C reveals the basic characteristics of oceanicventilation. However, simulation value is 'younger' than observation in the Pacific and IndianOceans, and 'older' than observation in the Atlantic deep ocean. The simulation of bomb ^(14)Cagrees well with GEOSECS observation, but the volume inventory and averaged penetration depth ofbomb ^(14)C in oceans are smaller than observation. The probable reasons for these discrepancies areanalyzed.^(14)C plays an important role in the study of ocean circulation andanthropogenic CO_2. Radioactive ^(14)C is usually used in ocean carbon circulation model to test thephysical performance of model. In the present paper, a ^(14)C model is established and coupled withthe IAP/LASG L30T63 global ocean circulation model to simulate the distribution of natural ^(14)Cin oceans and the penetration and uptake of ^(14)C in oceans after industrial revolution and nuclearbomb test. The simulation of natural ^(14)C reveals the basic characteristics of oceanicventilation. However, simulation value is 'younger' than observation in the Pacific and IndianOceans, and 'older' than observation in the Atlantic deep ocean. The simulation of bomb ^(14)Cagrees well with GEOSECS observation, but the volume inventory and averaged penetration depth ofbomb ^(14)C in oceans are smaller than observation. The probable reasons for these discrepancies areanalyzed.

关 键 词：ocean circulation model ^(14)C carbon cycle numerical simulation 

分 类 号：P731.27[天文地球—海洋科学]