Table 4 Statistics on the area of sunken water bodies in mining areas.

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

Water body index

Area of water body subsidence by year/km2

2005

2007

2010

2013

2018

2021

MNDWI

0

1.54

2.76

5.58

9.59

10.36

INDWI

0

0.75

1.70

5.25

8.13

8.97

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