文献类型：期刊文献

英文题名：Statistical analysis of regional air temperature characteristics before and after dam construction

作者：Chen, Ziyi[1];Liu, Zhixin[1];Yin, Lirong[2];Zheng, Wenfeng[3]

机构：[1]Shaoxing Univ, Sch Life Sci, Shaoxing 312000, Zhejiang, Peoples R China;[2]Louisiana State Univ, Dept Geog & Anthropol, Baton Rouge, LA 70803 USA;[3]Univ Elect Sci & Technol China, Sch Automation, Chengdu 610054, Peoples R China

年份：2022

卷号：41

外文期刊名：URBAN CLIMATE

收录：SCI-EXPANDED(收录号：WOS:000784314600002)、、Scopus(收录号：2-s2.0-85122735255)、WOS

基金：Funding This work was jointly supported by the Sichuan Science and Technology Program (2021YFQ0003) and the Fundamental Research Funds for the Central Universities (ZYGX2019J059) .

语种：英文

外文关键词：Dam; Regional climate; Correlation; Yangtze River; Precipitation changes; Geostatistics

外文摘要：Dam construction brings both benefits and harms to the ecological environment. This paper focuses on the impact of the construction of mega-dams on regional climate. Based on the national precipitation and temperature data from 1990 to 2012 from more than 2400 national stations of the National Meteorological Information Center, this paper analyzes Xiaolangdi Dam's influence on the Yellow River's climate and the Three Gorges Dam of the Yangtze River with geostatistics knowledge. The following results are obtained. (1) According to the analysis of the climate time and space distribution in the Yellow River Basin and the Yangtze River Basin, the dam's construction caused a drop in temperature in the reservoir area, which decreased by about 0.12 degrees C. On the other hand, the dam's construction also caused the temperature in the downstream area to rise by about 0.6 degrees C. (2) According to the analysis of regional climate correlation, the rise of the dam's water level will cause the temperature of the reservoir area to drop to a certain extent. The correlation between the temperature in the Three Gorges and the water level changes in the Three Gorges reaches -0.578. (3) According to regional climate statistics analysis, the dam's construction has reduced the temperature difference in the reservoir area.