Simulation of 14C in IAP/LASG L30T63 Ocean Model
14C plays an important role in the study of ocean circulation and anthropogenic CO2. Radioactive 14C is usually used in ocean carbon circulation model to test the physical performance of model. In the present paper, a 14C model is established and coupled with the IAP/LASG L30T63 global ocean circulation model to simulate the distribution of natural 14C in oceans and the penetration and uptake of 14C in oceans after industrial revolution and nuclear bomb test. The simulation of natural 14C reveals the basic characteristics of oceanic ventilation. However, simulation value is "younger" than observation in the Pacific and Indian Oceans, and "older" than observation in the Atlantic deep ocean. The simulation of bomb 14C agrees well with GEOSECS observation, but the volume inventory and averaged penetration depth of bomb 14C in oceans are smaller than observation. The probable reasons for these discrepancies are analyzed.
作 者： LI Qingquan SHI Guangyu 作者单位： LI Qingquan(Laboratory for Climate Studies of China Meteorological Administration, National Climate Center, Beijing 100081)SHI Guangyu(State Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029)
刊 名： 气象学报（英文版） SCI 英文刊名： ACTA METEOROLOGICA SINICA 年，卷(期)： 2005 19(4) 分类号： P4 关键词： ocean circulation model 14C carbon cycle numerical simulation