Associated Determinants of Surface Urban Heat Islands across 1449 Cities in China
Table 3
Accuracy statistics for the daytime and nighttime SUHII simulation for all of China and its four regions annually and for four seasons.
Time slot
China
Region I
Region II
Region III
Region IV
RMSE
R
RMSE
R
RMSE
R
RMSE
R
RMSE
R
Ann
D
1.10
0.59a
0.99
0.54a
0.69
0.59a
1.24
0.79a
0.99
0.45a
N
0.49
0.71a
0.61
0.65b
0.38
0.80a
0.91
0.13
0.61
0.59a
Win
D
1.30
0.56a
1.77
0.25
1.23
0.48a
1.99
0.42
1.20
0.52a
N
0.84
0.62a
1.40
0.14
0.66
0.65a
0.88
0.50a
0.71
0.56a
Spr
D
1.41
0.64a
1.84
0.37b
1.23
0.74a
1.99
0.43b
1.25
0.70a
N
0.58
0.66a
0.52
0.78a
0.43
0.70a
0.90
0.38
0.56
0.69a
Sum
D
1.54
0.55a
1.22
0.77a
0.99
0.62a
1.87
0.80a
2.18
0.19
N
0.62
0.63a
0.56
0.71a
0.45
0.71a
0.76
0.79a
0.61
0.43a
Aut
D
0.95
0.69a
1.61
0.32b
0.70
0.61a
1.24
0.58a
0.98
0.59a
N
0.63
0.63a
0.51
0.74a
0.55
0.76a
0.93
0.42b
0.53
0.67a
Note: asignificant at the 0.01 level; bsignificant at the 0.05 level; Ann, Win, Spr, Sum, and Aut stand for during the whole year, winter, spring, summer, autumn, respectively; D and N stand for during daytime and nighttime, respectively.