北极多冰年和少冰年的大气环流差异  

ATMOSPHERIC GENERAL CIRCULATION DIFFRENCE BETWEEN HEAVY YEARS AND LIGHT YEARS IN THE ARCTIC OCEAN

作　　者：张明[1] 余志豪[1] 

机构地区：[1]南京大学大气科学系,南京210093

出　　处：《气象科学》1999年第3期233-241,共9页Journal of the Meteorological Sciences

基　　金：国家自然科学基金;北极海冰与大气环流相互作用项目

摘　　要：本文利用一个改进的海冰热力模式，取北极区大气和有关场的气候资料，模拟了1982年10月至1988年9月的北极海冰空间分布和季节变化的循环特征，较好地模拟出多冰年（1983，1987）和少冰年（1984，1986）。模拟结果与部分研究工作以及实况相比较，基本状况趋于一致。并且在此基础上进一步探讨了北极多冰年和少冰年的大气环境差异，可以看到多冰年的北极极涡偏西半球；少冰年的北极极涡基本是围绕极地。从而进一步影响多冰年和少冰年大气环流差异，特别是对亚洲环流的影响较大。In this paper,the variations of sea ice in the ArctiC Ocean during 1982 to 1988 are simulated by using a An proved sea thermodynamics model. The model is run with boundary conditions from observed monthly sea surface air temperature and pressure. The heavy years (1983,1987)and the light years (1984, 1986 )are simulated by the model, the simulating results are more consistent with the some of observation and part of research works. Then discussion of atmospheric general circulation in the Arctic Ocean was made. In heavy years,polar vortex center is wester than the normal years, meridional cell deceases; in light years, the opposite conclusion is true.

关 键 词：北极海冰 海冰热力模式 大气环流 多冰年 少冰年 

分 类 号：P434[天文地球—大气科学及气象学] P461.6