北极多冰年和少冰年的大气环流差异

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。

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

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.