摘要
本文利用中科院大气物理研究所的二层大气环流模式（IAP—GCMⅡ），对冬季南海海表水温月异常对全球气候的影响进行了数值试验，讨论了相对该异常的南北半球响应波列及其与大气指数循环韵律的关系。研究表明，南北球中高纬500hPa响应波列的产生是由于南海海表水温月异常改变了大气原有指数循环韵律的缘故。本文还发现，当南海海表水温月异常时，大气中存在三个明显的温度低频振荡响应，其对气候预测有一定的预报指示作用。
In the paper, by using the IAP two - level atmospheric general clrculation model (IAP - GCM Ⅱ), some numerical experiments has been made on the effect of the South China Sea SST monthly abnormality to the climate,and it is the re1ationship between the response-wave in the southern and northern hemisphere and the rhythm of the atmospheric index cycle that have been discussed. The results indicate that the occurrence of the 5OO hPa response -wave in the middle - high latitude of the southern and northern hemisphere is based on the rhythm of the atmospheric index cycle that was caused by the South China Sea SST abnormality. It is also found that there are three obviously temperature lowfrequency oscillation response for the South China Sea SST monthly abnormality and it is helpful to the climate forecast.
出处
《气象科学》
CSCD
北大核心
1999年第4期360-365,共6页
Journal of the Meteorological Sciences
基金
空军基础理论研究课题
