Variation of Temperature and Precipitation in Urban Agglomeration and Prevention Suggestion of Waterlogging in Middle and Lower Reaches of Yangtze River

3rd International Conference on Energy Equipment Science and Engineering

Na, Liu^1 ; Youjie, Jin^2 ; Jiaqi, Dai^3

Nanjing Automation Institute of Water Conservancy and Hydrology, Ministry of Water Resource, No.95 Tie Xin Qiao Street, Yu Hua Tai District, Nanjing City, Jiangsu Province, China^1

Nanjing Hydraulic Research Institute, No.223 Guang Zhou Road, Gu Lou District, Nanjing City, Jiangsu Province, China^2

Hydrology and Water Resources Engineering Research Center for Monitoring, Ministry of Water Resources, No.95 Tie Xin Qiao Street, Yu Hua Tai District, Nanjing City, Jiangsu Province, China^3

关键词: Comprehensive preventions;    Daily rainfall;    Flood season;    Heavy rainfall;    Middle and lower reaches of the yangtze rivers;    Middle and lower reaches of yangtze rivers;    Temperature trends;    Urban agglomerations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012165/pdf
DOI  :  10.1088/1755-1315/128/1/012165

来源: IOP

【 摘 要 】

The variation trend of temperature and precipitation during flood season in the middle and lower reaches of the Yangtze River basin in recent 50 years and change characteristics of rainfall in five typical flood prone cities are analysed. Aiming at waterlogging problems in the urban agglomeration of middle and lower reaches of the Yangtze River, the comprehensive prevention and control suggestions are put forward. The results showed that: the temperature trend in the basin decreased and then increased, and the precipitation showed a downward-rising-downward trend, no mutation occurred; The incidence of heavy rainfall events in the five typical cities with daily rainfall more than 50mm showed an upward trend, and increased significantly after 2002. The intensity of precipitation increased gradually. Climate change makes urban agglomeration waterlogging disasters become increasingly prominent in the middle and lower reaches of the Yangtze River.