青藏高原云对地气系统短波吸收辐射强迫的气候研究  

Climatology of cloud effects on earth-atmosphere absorbed shortwave radiation forcing over Qinghai-Tibet Plateau

作　　者：刘艳[1] 翁笃鸣[1] 

机构地区：[1]南京气象学院环境科学系,南京210044

出　　处：《南京气象学院学报》2000年第1期124-129,共6页Journal of Nanjing Institute of Meteorology

基　　金：国家攀登 B项目!"青藏高原第二次科学试验"资助

摘　　要：利用地球辐射平衡试验 ( ERBE)和国际卫星云气候计划 ( ISCCP)提供的总云量、行星反射率资料 ,计算并分析了青藏高原地气系统年、月平均云对太阳短波吸收辐射的强迫 ,揭示了其与总云量的关系。结果表明 :高原的短波辐射云强迫与总云量有较好的非线性相关 ,呈幂指数形式 ,且季节变化明显 ;短波辐射云强迫的地理分布与高原云的分布配合较好 ,高原主体和北部是短波辐射云强迫的低值区 ,高原东南部和西部边缘迎风部位为强迫的高值区。In terms of data provided by ERBE and ISCCP, effects of total cloudiness on earth atmosphere system absorbed shortwave cloud radiation forcing (SWCRF) are investigated over Qinghai Tibet Plateau on an annual and a monthly basis separately. It turns out that there is a good power law correlation between them,and both have obvious seasonal variations. The SWCRF's geographical distribution accords well with that of the total cloudiness over the region and its value is lower over the main and north parts, and higher over the south east part and the windward side of the west edge.

关 键 词：青藏高原 地气系统 短波吸收辐射 辐射强迫 云 

分 类 号：P422[天文地球—大气科学及气象学] P426.51