Table 2 Bias of 90-m Landsat 8 downscaled LST and NSDI-RF downscaled LST at four sites in spring (16 April 2013), autumn (9 October 2013) and winter (28 December 2013).

From: Applicability of Downscaling Land Surface Temperature by Using Normalized Difference Sand Index

Site

2013.4.16

2013.10.9

2013.12.28

Landsat8 (K)

NDSI-RF (K)

Landsat8 (K)

NDSI-RF (K)

Landsat8 (K)

NDSI-RF (K)

Wetland

−3.87

−1.17

−3.16

−1.84

−3.01

−2.43

Maize

0.61

0.03

−4.57

−3.89

−2.14

−2.03

Gobi

−0.87

−0.80

0.30

−0.09

−1.56

−1.45

Desert

0.95

0.24

1.24

0.65

−1.53

−1.03