海洋科学Issue(2)：6-20,15.DOI:10.11759/hykx20120705002
风场对全球海洋CFC-11吸收的影响
Influence of wind fields on the uptake of CFC-11 in the global ocean model
摘要
Abstract
Using a global ocean general circulation model (LICOM) developed by the Institute of Atmospheric Physics (IAP) of the Chinese Academy of Sciences, we conducted four numerical experiments to investigate the influence of different wind fields on the uptake and transport of CFC-11 in the global ocean. Three experiments were performed using the same formula of the air-sea gas transfer velocity that is dependent on wind speed, in which wind speeds were from Esbensen and Kushnir (Exp-EK), NCEP (Exp-NP) and QuickSCAT (Exp-QS). An-other experiment is called Exp-C, in which the transfer velocity is a space-independent constant of 14.5 cm/h that is the same as the global annual mean value of Exp-EK. The air-sea flux, surface concentration, and column inventory of CFC-11, as well as its interior transport processes were investigated in these four experiments. The difference of the air-sea gas transfer velocity resulting from the difference in wind fields generated a remarkable difference in the air-sea CFC-11 in the local area, but the difference is not notable in most regions of the ocean. This difference decreased with the increase of integral time. For example, in local area of the North Atlantic in Jan.1955, the dif-ference in the simulated air-sea flux among these three experiments could reach about 20%. The difference in the simulated flux among these three experiments in local area of the North Atlantic deceased to about 15% in Jan. 1995. In addition, a constant transfer velocity (Exp-C) generally generates a relatively smaller value. The Exp-QS in which wind speed is relatively higer leads to that simulated results are closer to the observation than other simulations to some degree.关键词
三氯一氟甲烷(CFC-11)/风场/吸收/传输速度Key words
CFC-11/wind field/uptake/transfer velocity分类
天文与地球科学引用本文复制引用
方怡,徐永福,李阳春,覃军..风场对全球海洋CFC-11吸收的影响[J].海洋科学,2014,(2):6-20,15.基金项目
国家重点基础研究发展计划(“973计划”,2010CB951802) （“973计划”,2010CB951802）
国家自然科学基金(41075091,40730106,41105087) （41075091,40730106,41105087）
