Heritage Science

Table 2 Occurrence times of the daily extreme T differences and RH differences

From: Maintenance schedule optimization based on distribution characteristics of the extreme temperature and relative humidity of Cave 87 in the Mogao Grottoes

	T difference	RH difference
Maximum
Warm season	6 am ~ 9 am	4 pm ~ 8 pm
Cool season	4 pm ~ 6 pm	4 am ~ 12 am
Minimumn
Warm season	4 pm ~ 6 pm	4 am ~ 10 am
Cool season	6 am ~ 9 am	4 pm ~ 10 pm

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