Table 3 Comparison of MNDWI and INDWI extracted water body areas.

From: Research on water body information extraction and monitoring in high water table mining areas based on Google Earth Engine

Water body extraction data types

Acquisition Time

Area of water body (km2)

Precision (%)

Measured data on-site

2021-03-20

10.37

–

Jilin-1 Oversight classification

2021-03-28

10.04

96.82

Landsat 8 MNDWI

2021-03-24

11.18

89.80

Landsat 8 INDWI

2021-03-24

9.68

96.41

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