摘要
本文采用太阳短波辐射分光谱模式计算了我国太阳辐射收支各分量。模式中主要考虑及计算了大气中各种成份在不同谱区对太阳辐射的吸收和衰减作用。如水汽、均匀混和气体的红外吸收 ,紫外和可见光区的臭氧吸收、雷利散射及大气气溶胶的削弱作用等。给出了大气中各种成份在不同波段对太阳辐射的削弱。并且分析了我国太阳辐射收支各分量 1月、7月的分布特征。模式误差在4 %～ 10 % ,比较理想。为无辐射观测的高原、沙漠、海洋等地区提供了一种较好的计算方法。
A spectral model for cloudless and cloudy days to generate direct-normal and diffuse horizontal irradiance in China is presented. In the model,the attenuation of various atmospheric constituents in different bands is calculated ,such as absorption of water vapour and uniformly mixed gases in the infrared spectral region,ozone absorption,Rayleigh scattering and aerosol attenuation in the ultraviolet and visible bands.The distribution of calculated results is given ,and the main factors that influence solar radiation are discussed .The model is proved to be very accurate and applicable to a broad range of atmospheric conditions.
出处
《气象科学》
CSCD
北大核心
2004年第2期185-192,共8页
Journal of the Meteorological Sciences
基金
国家自然科学基金项目 (90 2 110 11)
