Table 5 NDSI reclassification values along with min, max, and standard deviation values from 1990 to 2020.

From: Aeolian sand migration induced land degradation and desertification hotspots identification in the semi-arid rain shadow regions of Anantapur, India

Year

Reclassification

Minimum value

Maximum value

Standard deviation

1990

 − 0.793 to − 0.429

 − 0.793

0.592

0.385

 − 0.429 to − 0.211

 − 0.211 to − 0.037

 − 0.037 to 0.157

0.157 to 0.592

2000

 − 0.769 to − 0.500

 − 0.769

0.239

0.284

 − 0.500 to − 0.314

 − 0.314 to − 0.195

 − 0.195 to − 0.049

 − 0.049 to 0.239

2010

 − 0.724 to − 0.401

 − 0.724

0.345

0.286

 − 0.401 to − 0.271

 − 0.271 to − 0.183

 − 0.183 to − 0.007

 − 0.007 to 0.345

2020

 − 0.700 to − 0.445

 − 0.700

0.227

0.255

 − 0.445 to − 0.318

 − 0.318 to − 0.234

 − 0.234 to − 0.060

 − 0.060 to 0.227

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