Analysis of Atmospheric Turbidity in Clear Skies at Wuhan,Central China  

作　　者：Lunche Wang Yisen Chen Ying Niu German Ariel Salaza Wei Gong 

机构地区：[1]Department of Geography,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China [2]Physics Department,School of Exact Sciences,Salta National University,Salta A4408FVY,Argentina [3]State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China

出　　处：《Journal of Earth Science》2017年第4期729-738,共10页地球科学学刊（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.41601044);the Special Fund for Basic Scientific Research of Central Colleges,China University of Geosciences,Wuhan(Nos.CUG150631,009-162301124611);the 111 Project(No.B08030)

摘　　要：The Angstr6m turbidity coefficient （β） and Linke turbidity factor （TL） are used to study the atmospheric conditions in Wuhan, Central China, using measureβd direct solar radiation during 2010-2011 in this study. The results show that annual mean β 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 TL 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 β values show preponderance （52.8%） between 0.15 and 0.35, 78.1% of TL values are between 3.3 and 7.7, which can be compared with other sites around the world. Relationship between turbidity coefficients and main me- teorological 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 β values in the study area.The Angstr6m turbidity coefficient （β） and Linke turbidity factor （TL） are used to study the atmospheric conditions in Wuhan, Central China, using measureβd direct solar radiation during 2010-2011 in this study. The results show that annual mean β 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 TL 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 β values show preponderance （52.8%） between 0.15 and 0.35, 78.1% of TL values are between 3.3 and 7.7, which can be compared with other sites around the world. Relationship between turbidity coefficients and main me- teorological 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 β values in the study area.

关 键 词：direct solar radiation AngstrOm turbidity coefficient Linke turbidity factor Central China. 

分 类 号：P422.1[天文地球—大气科学及气象学]