Analysis of Atmospheric Turbidity in Clear Skies at Wuhan, Central China
Analysis of Atmospheric Turbidity in Clear Skies at Wuhan, Central China
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武汉晴空大气浑浊度分析
DOI：
10.1007/s12583-017-0756-2
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发表时间：
2017-08-01
影响因子：
3.3
通讯作者：
Gong, Wei
中科院分区：
文献类型：
--
作者：
Wang, Lunche;Chen, Yisen;Gong, Wei
本文利用2010-2011年实测的太阳直接辐射，利用埃斯特浊度系数（beta）和林克浊度因子（T-L）研究了武汉地区的大气条件。结果表明：年平均β值在白天总体上由上午的0.28增加到中午的0.35，在下午晚些时候减小到0.1；中部地区年平均T-L一般在3 ~ 7之间。浊度系数均在春季和夏季最大，冬季最小。beta值在0.15 ~ 0.35之间占52.8%，T-L值在3.3 ~ 7.7之间占78.1%，可与世界其他地区进行比较。进一步研究了浊度系数与主要气象参数（湿度、温度和风向）的关系，发现局地气溶胶浓度、中国北方沙尘事件和印度洋西南季风对研究区浊度系数有影响。
The Angstrom turbidity coefficient (beta) and Linke turbidity factor (T-L) are used to study the atmospheric conditions in Wuhan, Central China, using measured direct solar radiation during 2010-2011 in this study. The results show that annual mean beta values generally increase from 0.28 in the morning to 0.35 at noon, and then decrease to 0.1 in the late afternoon during the day; annual mean T-L generally varies from 3 to 7 in Central China. Both turbidity coefficients have maximum values in spring and summer, while minimum values are observed in winter months. It also reveals that beta values show preponderance (52.8%) between 0.15 and 0.35, 78.1% of T-L values are between 3.3 and 7.7, which can be compared with other sites around the world. Relationship between turbidity coefficients and main meteorological parameters (humidity, temperature and wind direction) have been further investigated, it is discovered that the local aerosol concentrations, dust events in northern China and Southwest Monsoon from the Indian Ocean influences the beta values in the study area.