Table 3 Statistics between observations and predictions of three studies.

From: Depth-to-bedrock map of China at a spatial resolution of 100 meters

Study

r*

RMSE

ME

RE

Ensemble model in this study

0.739

49.86

0.68

0.02

QRF model in the study

0.720

51.15

11.77

0.33

Pellertier et al.10

0.486

81.98

36.52

1.01

Shangguan et al.11

0.475

67.32

14.71

0.41

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