Author(s)

ZhiHua Liu

Affiliation(s)

JiangXi University of Science and Technology, Ganzhou 341000, Jiangxi, China.

Corresponding Author

ZhiHua Liu

ABSTRACT

With the development of remote sensing technology, remote sensing images are more and more widely used in water monitoring. This paper uses Landsat 8 remote sensing images as the data source, selects Poyang Lake, Taihu Lake and Dingnan County as the study area, and combines NDWI, MNDWI, EWI, SWI, TCW, MBWI, WI2015, AWEInsh and AWEIsh to extract water bodies and evaluate the accuracy of the study area. The results are as follows: 1. The overall extraction accuracy of TCW and MBWI is the highest. 2. For mountain shadow areas, AWEInsh and TCW have the best extraction effect. For shallow water area, TCW and MBWI have the b est extraction effect, and the spectral distinction between water and non water is greatly increased. For the eutrophication area of water body, the ten methods have high accuracy, and can distinguish the spectral characteristics of chlorophyll and non water body.

KEYWORDS

Remote sensing image; Research area; water extraction; Water index method; Accuracy evaluation

CITE THIS PAPER

ZhiHua Liu. Suitability evaluation of water index under extraction of complex environmental water bodies. Frontiers in Environmental Research. 2025, 3(1): 84-88. DOI: https://doi.org/10.61784/fer3022.

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