Visibility characteristics over Fuzhou during 1956-2016

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Fu, Weicong^1,2 ; Zhu, Zhipeng^1,2 ; Huang, Shuping^1,2 ; Chen, Ziru^1,2 ; Ding, Guochang^1,2 ; Dong, Jianwen^1,2

College of Landscape and Architecture, Fujian Agriculture and Forestry University, Fuzhou, China^1

State Forestry Administration National Forest Park Engineering Research Center, Fuzhou, China^2

关键词: Atmospheric visibility;    High growth;    Upward trend;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012055/pdf
DOI  :  10.1088/1755-1315/64/1/012055

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This research analyzes atmosphere visibility characteristics in Fuzhou. For residents to choose the best travel time and improve the quality of their life. The results show that the average atmospheric visibility in 1957-2016 is 17.98 km and the trend is -2.86 km / decade. The highest atmospheric visibility occur in the summer, the lowest value appears in the winter, further observation shows that atmospheric visibility in July showed the maximum value, and in March shows the lowest value. The "bad" level of atmospheric visibility showed a modest upward trend between 1956 and 2006, and showed a high growth after 2006, indicating that effect of governance to improve the air quality is not obvious, and the trend of "good" level of is decline from nearly 90% in 1956 to nearly 20% in 2006. In 1956-1987 Ridit values are greater than 0.5, the highest value of 0.77, in the upward trend in the fluctuation, in 1987-2005 Ridit value of 0.5 up and down, in a steady period of time the trend is not obvious, and in 2006-2016 Ridit value is less than 0.5, the lowest value of 0.28, indicating that the trend of atmosphere is decline. The value of atmospheric visibility about worst 20%, 50% and best 20% is in a downward trend.