Examining the Effects of Hydropower Station Construction on the Surface Temperature of the Jinsha River Dry-Hot Valley at Different Seasons

On the completion of a large-scale hydropower station, the change of the water area can cause a corresponding change of local weather. To examine such changes, this paper analyzed the effect of the reservoir in the head area of the Xiluodu hydropower station based on the temperature data of MODIS MY...

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Bibliographic Details
Published in:Remote sensing (Basel, Switzerland) Switzerland), 2018-04, Vol.10 (4), p.600
Main Authors: Wang, Dongchuan, Wang, Feicui, Huang, Yong, Duan, Xingwu, Liu, Jinya, Hu, Bingxu, Sun, Zhichao, Chen, Junhe
Format: Article
Language:English
Subjects:
Cooling effects
Dry season
dry-hot valley
Geographical variations
Hydroelectric power
hydropower station construction
Mountains
Rainy season
Remote sensing
reservoir effect change intensity
reservoir flood seasons
Reservoirs
Rivers
Seasons
Surface temperature
temperature difference
Temperature effects
Temperature gradients
Valleys
Weather
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Summary:On the completion of a large-scale hydropower station, the change of the water area can cause a corresponding change of local weather. To examine such changes, this paper analyzed the effect of the reservoir in the head area of the Xiluodu hydropower station based on the temperature data of MODIS MYD11A2. The temperature differences (TD) between various locations in the study area and the reservoir were calculated to explore the TD in different seasons. The reservoir effect change intensity (RECI) was established to explore the impact of the reservoir on local weather changes in different flood seasons. The combination of the TD and RECI was applied to explore the role of the hydropower station in regulating the temperature of the surrounding reservoir. The results showed the following: (1) after hydropower station construction (HSC), the TD in the valleys decreased and the TD in the dry season was lower than that in the wet season; (2) the RECI had different distribution characteristics in different flood seasons of the reservoir, and the RECI was stronger in the wet season than that in the dry season; and (3) unlike in the plains, cooling and warming effects existed simultaneously in different parts of the mountains.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs10040600