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机构地区:[1]兰州大学大气科学系 [2]山西大学师范学院
出 处:《干旱气象》1997年第1期45-46,56,共3页Journal of Arid Meteorology
摘 要:对兰州市太阳辐射和空气污染的年季变化规律分析表明:太阳直接辐射、总辐射及大气透明系数呈逐年下降趋势,散射辐射和晴天大气混浊因子呈逐年增加趋势,且从70年代后期开始这种趋势更加明显;冬季大气污染最严重,夏季较其他季节轻,春季污染高于秋季。总悬浮微粒的年。This paper has made an analysis on the yearly variation patterns in the solar radiation and the seasons of the atmospheric pollution in Lanzhou. The results show: the direct solar radiation, the global radiation and the coefficient of air transparency are on the decline each year while the scattering radiation and turbidity factors are on the rise which has been getting more obvious since late 1970s; the air pollution is the gravest in winter and the lowest in summer while that in spring is more serious than in autumn. The yearly change of the total suspended particles and the changes of seasons generally conform to the variation patterns in the solar radiation and the turbidity factors.
分 类 号:P422.1[天文地球—大气科学及气象学]
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