中国地区云对地-气系统辐射强迫温度效应的气候研究  

CLIMATOLOGICAL STUDY OF TEMPERATURE EFFECTS OF LOUD-RADIATIVE FORCING IN THE EARTH-ATMOSPHERIC SYSTEM OVER CHINA

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

出　　处：《气象学报》2002年第6期766-773,共8页Acta Meteorologica Sinica

基　　金：海外青年学者合作研究基金 (批准号 :40 0 2 85 0 3);国家攀登B计划项目"青藏高原试验"。

摘　　要：文中利用地球辐射平衡试验 (ERBE)和国际卫星云气候计划 (ISCCP)提供的地 气系统行星反射率、射出长波辐射 (OLR)和云量资料 ,计算了中国地区年、月平均总云量对地 气系统短波辐射、长波辐射以及净辐射强迫的温度效应和敏感性系数 ,并讨论了云对各辐射分量强迫的温度效应与总云量的关系。结果表明 :地 气系统云辐射强迫温度效应与总云量间具有较明显的曲线相关。云辐射强迫温度效应及其敏感性系数具有明显的时空变化特点。就中国全国平均而言 ,各月地 气系统云辐射强迫净温度效应一般表现为降温作用。Based on TOA monthly mean planetary albedo, outgoing longwave radiation(OLR) flux and total cloud cover from ERBE and ISCCP, cloud temperature effects and their sensitivity coefficients due to cloud-radiative forcing over China are studied. The relationship between temperature effects of cloud-radiative forcing and cloud amount is discussed. The results show that there is a nonlinear relationship between them. Both temperature effects and sensitivity coefficients have characteristics of spatial-temporal variation. On average, the temperature effect of cloud forcing in each month results in cooling of the earth's atmosphere over China.

关 键 词：地-气系统 云 辐射强迫 温度效应 降温作用 时空变化 中国 

分 类 号：P422[天文地球—大气科学及气象学] P423