Research on early-warning index of the spatial temperature field in concrete dams

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Table 4 K–S test results

Probability distribution	Partition I	Partition II	Partition III
Lognormal distribution	0.32	0.17	0.25
Normal distribution	0.41	0.21	0.31
Uniform distribution	0.78	0.95	0.86
Triangular distribution	0.32	0.44	0.43
Exponential distribution	0.44	0.46	0.65
γ distribution	0.34	0.53	0.21
β distribution	0.53	0.71	0.53
The most reasonable probability distribution	Normal distribution	Normal distribution	Normal distribution

K–S test shows that the annual extreme temperature entropies of all partitions satisfy the normal distribution