土壤温湿异常对短期气候影响的数值模拟试验  

NUMERICAL EXPERIMENTS OF THE SOIL TEMPERATURE AND MOISTURE ANOMALIES' EFFECTS ON THE SHORT TERM CLIMATE

作　　者：王万秋[1] 

机构地区：[1]中国科学院大气物理研究所

出　　处：《大气科学》1991年第5期115-123,共9页Chinese Journal of Atmospheric Sciences

基　　金：国家自然科学基金

摘　　要：本文介绍了用IAP气候模式进行关于土壤温度异常和土壤湿度异常的敏感性试验研究,异常区域都取在中国范围内。其中关于土壤温度异常的影响,我们进行了初值异常和固定异常两种试验,而对土壤湿度异常的影响则进行了初始异常的试验。结果表明,土壤温度的初始异常一天以后基本消失,而固定的土壤温度异常和土壤湿度的初始异常对短期(一个月左右)气候有明显影响。土壤温度的影响主要在异常区内及其南部相邻区域,土壤湿度异常的影响则可以以长波波列形式向外传播到很远距离处。Sensitivity experiments of soil temperature and soil moisture were carried out with IAP GCM. The anomaly domain was selected in the region of China. For soil temperature, cases with initial anomalies and fixed anomalies were studied, respectively; for soil moisture, only the initial anomalies were used. The results show that the initial soil temperature anomalies' effects disappear after 24 hours but the fixed soil temperature anomalies and the initial soil moisture anomalies have important effects on the short term climate. The influence of soil temperature anomalies is restricted mainly within the anomaly area and the southern adjacent region; the soil moisture anomalies' influence may propagate vary far away from the anomaly region after ten days.

关 键 词：土壤 温度 湿度 气候 影响 模拟 

分 类 号：P461.4[天文地球—大气科学及气象学]