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

1
School of Geology and Geomatics, Tianjin Chengjian University, No. 26 Jinjing RD., Xiqing District, Tianjin 300384, China
2
Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China
3
Yunnan Key Laboratory of International Rivers and Trans-Boundary Eco-Security, Yunnan University, Kunming 650500, China
4
Appraisal Center for Environment & Engineering Ministry of Environmental Protecion, No. 8 Beiyuan RD., Chaoyang District, Beijing 100012, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2018, 10(4), 600; https://doi.org/10.3390/rs10040600
Received: 12 March 2018 / Revised: 31 March 2018 / Accepted: 6 April 2018 / Published: 12 April 2018
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Abstract

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. View Full-Text
Keywords: hydropower station construction; dry-hot valley; reservoir flood seasons; temperature difference; reservoir effect change intensity hydropower station construction; dry-hot valley; reservoir flood seasons; temperature difference; reservoir effect change intensity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Wang, D.; Wang, F.; Huang, Y.; Duan, X.; Liu, J.; Hu, B.; Sun, Z.; Chen, J. Examining the Effects of Hydropower Station Construction on the Surface Temperature of the Jinsha River Dry-Hot Valley at Different Seasons. Remote Sens. 2018, 10, 600.

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