Application of multi-spectral remote sensing images in monitoring the water level of Yangtze River

doi:10.13474/j.cnki.11-2246.2024.0319

Abstract

Abstract: Human social life and production activities are closely related to changes in river water levels. River water level monitoring system can real-time get the changes in river water level, and is an important means for scientific warning of water hazards, ensuring the safety of ports and shipping, and improving flood control and drought resistance capabilities. This paper studies the correlation between the local water area of Yangtze River and the observed water level values, and establishes a regression equation. Therefore, using multi-spectral remote sensing images to extract the area of the Yangtze River water area, this regression equation can be used to calculate the water level. The results show that this method can provide a simple and feasible estimation method for water level monitoring of rivers, lakes, and reservoirs.

Key words: water level monitoring, multispectral remote sensing images, water area, NDWI

CLC Number:

P237

WEI Xiang, TIAN Chengshuo, QIN Sixian, DUAN Mengmeng. Application of multi-spectral remote sensing images in monitoring the water level of Yangtze River[J]. Bulletin of Surveying and Mapping, 2024, 0(3): 113-117.

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