会议专题

Visual Range Trends in the Yangtze River Delta Region of China during 1981-2005

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Visual range (VR) data from 1981 to 2005 are examined for 20 meteorological monitoring sites in the Yangtze River Delta Region (YRDR) of China. Cumulative percentile analysis was used to construct VR trend. The 25-year average domain average 50％ VR was about 21.9 ± 1.9 km. Domain average 50％ VR decreased from 1981 to 2005 with a trend of -2.41 km /decade. The worst 20％, 50％ and best 20％ VR and variation rates for the 20 sites are analyzed. The 50％ VR of the town, county-level city and prefecture-level city sites are 24.1 km, 21.5 km and 19.4 km, respectively. The best 20％ VR decreased fastest with the rate -3.5 km/decade. Regional median VR decreased from the coastal sites to the inland sites. Ridit analysis and cumulative percentile have been adopted to study the VR variation properties between economically developed areas (e.g., Nanjing and Hangzhou) and remote areas (e.g., Lvsi). The two analyses both show that VR decreased in Nanjing and Hangzhou while remained constant in Lvsi from 1981 to 2005.

Variation Yangtze River Delta China Visual range

Lina Gao Gensuo Jia Renjian Zhang Huizheng Che Congbin Fu Tijian Wang Meigen Zhang Hong Jiang Peng Yan

Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Chinese Academy of S Key Laboratory of Regional Climate-Environment Research for Temperate East Asia Chinese Academy of S Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Chinese Academy of S Key Laboratory of Atmospheric Chemistry (LAC),Centre for Atmosphere Watch and Services (CAWAS),Chine Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Chinese Academy of S Department of Atmospheric Science,Nanjing University,22 Hankou Road ,Nanjing,Jiangsu Province,P. R.C State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry,Chinese Academy Department of Atmospheric Science,Nanjing University,Nanjing,Jiangsu Province,P. R. China,210093 Chinese Academy of Meteorological Sciences (CAMS),CMA,Beijing,P. R. China,100081

国际会议

第七届亚洲气溶胶会议

西安

英文

591-603

2011-08-17（万方平台首次上网日期，不代表论文的发表时间）