摘要
本文根据天文因素、气象条件和大气质量论述上海城市太阳辐射的日变化和季节变化的规律性.指出由于气象条件和大气污染浓度的不同,可以改变天文辐射周期性的变化,而“城市发展”这个人为因子对到达地表的太阳直接辐射、散射辐射和总辐射有着极其重要的影响,从而论证上海城市大气环境有明显恶化的趋势.
This paper is based on the daily observational data of solar radiation at Longhua (located at the southern part of Shanghai City)in 1986 and its monthly data covered 31 years(1958～1988).By analysing these data we find that the regular pattern of the diurnal and seasonal variation of solar radiation at Shanghai City-are very complicated under the control of the astronomical factor, the meteorological conditions (such as cloudiness, number of overcast days, the percentage of possible sun-shine, etc.) and the concentration of atmospheric pollutants.Due to the effects of the urban development, the direct solar radiation(S)and global radiation (Q) become weaker, whereas the diffuse radiation (D) and the turbidity factor (D/S) become stronger.This means the atmospheric quality of Shanghai City is worsening.
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
1992年第2期63-73,共11页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金资助课题<中国不同气候区域城市气候的研究>
关键词
太阳直接辐射
散射辐射
总辐射
solar direct radiation diffuse radiation global radiation turbidity factor percentage of possible sunshine
