Station Name

Original resolution data R²

Spatial downscaling data R²

Original resolution data RMSE

Spatial downscaling data RMSE

Original resolution data BIAS

Spatial downscaling data BIAS

Potou

0.984

0.984

72.19

64.42

0.102

−0.075

Leting

0.999

0.998

70.35

67.62

−0.010

−0.041

Tianjin

0.966

0.971

41.49

36.30

0.277

0.144

Huailai

0.975

0.971

48.83

47.80

0.425

0.112

Shijiazhuang

0.969

0.975

52.78

48.94

0.030

−0.060

Beijing

0.939

0.957

40.72

54.20

−0.052

0.074

Chengde

0.960

0.967

60.63

56.93

0.187

0.098