摘要
本文利用ＯＳＵ两层大气环流模式来考察土壤湿度和地表反射率变化对中国北方气候的影响。在（３０—４６°Ｎ，９０—１２０°Ｅ）的区域上进行了３个试验，结果表明干土壤对我国东部季风区和西部非季风区有不同的影响特征。高反射率造成降水减少。并指出地表过程的作用可能是经常发生在华北的春夏连旱现象的重要原因之一。
Three numerical simulations which integrated more than 50 days by the OSU AGCM are carried out to show the effects of changes in soil moisture and surface albedo on the climate of north part of China (30-46°N, 90-120°E). Results of the simulation indicate that dry moisture have different effects on non-monsoonal area in the west of china and the monsoonal are in the east of China. High albedo produces a decrease in rainfall. It is pointed out that effect of surface process is one of possible major reason of spring-to-summer continuous drought which happen in North China frequently.
出处
《气象学报》
CSCD
北大核心
1996年第4期493-500,共8页
Acta Meteorologica Sinica
基金
国家基础性研究攻关项目
关键词
土壤
湿度
地表反射率
气候影响
北方
中国
Soil moisture, Surface albedo, North China Spring-to-summer continuous drought
