摘要
本文采用Ardanuy等人提出的分析云的辐射强迫作用的物理方法,利用1982年8月—1983年7月NOAA-7逐日的OLR资料及行星反射率资料,分析了青藏高原地区云对OLR的强迫作用。结果表明:云层复盖率是影响OLR的主要因子;春季云对OLR的强迫作用最大;全年平均云层复盖率约为47％,使地气系统射出长波辐射减少约29W/m^2;云对OLR强迫作用的空间分布有明显的季节变化。
In this paper, the diurnally-averaged longwave cloud-radiative forcing over Qinghai-Xizang Plateau is analyzed by the physical method developed by Ardanuy et al. (1989) based on NOAA-7 daily OLR and planetary albedo data during August 1982-July 1983. The results show that cloud cover is a major factor modulating OLR. The longwave cloud forcing reaches maximum in Spring. The annual mean cloud cover is found to be 47%. The regionally averaged longwave cloud radiative forcing is 29W/m2. The difference of spatial distribution of longwave cloud forcing is very large with season.
出处
《高原气象》
CSCD
北大核心
1992年第3期259-266,共8页
Plateau Meteorology
基金
国家基础性研究重大关键项目"气候动力学和气候预测理论的研究"资助
关键词
青藏高原
OLR
云
辐射
强迫作用
Qinghai-Xizang Plateau
OLR
, Cloud-radiative forcing
NOAA-7.
