摘要
本文在耦合海气动力学基础上,研制了一个全球浅水波耦合海气模式;并模拟 EL Nino型海温异常;作了耦合系统对两种强度异常海温响应试验。通过与仅考虑大气系统动力变化的AGCM模拟试验比较,揭示了热带海洋和全球大气之间海气相互作用在气候系统的演变中起到十分重要作用。热带海洋和全球500百帕大气平均环流在AGCM与COAGCMs中均存在明显变化。尤其是强的EL Nino信号出现时大气环流中通常为东风气流控制下的亦道地区在印度洋及其北侧出现西风,南半球的付热带西风显著加强。热带地区风场与SSTA响应明显,较高纬度也受到影响。
A global coupled air-sea model of shallow water wave is developled based on couPled ocean-atmosphere dynamics. The coupling is realized through the air-sea interaction process that the atmosphere acts on the ocean by wind stress and the ocean acts on the atmosphere with (heating proportional to sea surface temperature anomaly. The equation is barotropic primitive one. Response experiments of coupling system are also carried out SSTA in etwo categories of intensities. Compared with the results of AGCM simulation experiment in which only the dynamic change of air system is considered, it demonstrates that the air-sea interaction between the tropical ocean and the global atmosphere play a very important role in the evolution of dimate system.
出处
《气象科学》
CSCD
北大核心
1993年第1期18-26,共9页
Journal of the Meteorological Sciences
