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Table 1 Occurrence times of the daily extreme T and RH

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

 

T

RH

Outdoor

No.1

No.4

Outdoor

No.1

No.4

Maximum

 Annual average

4 pm ~ 7 pm

4 pm ~ 8 pm

4 pm ~ 8 pm

4 pm ~ 8 pm

 

 Warm season

6 pm

6 pm ~ 10 pm

4 pm ~ 8 pm

4 pm ~ 8 pm

8 am ~ 12 am

 Cool season

5 pm

4 pm ~ 8 pm

6 pm ~ 10 pm

4 pm ~ 7 pm

6 pm ~ 12 pm

Minimum

 Annual average

6 am ~ 10 am

6 am ~ 10 am

6 pm ~ 10 am

6 am ~ 10 am

 

 Warm season

7 am ~ 8 am

6 am ~ 10 am

7 am ~ 9 am

4 am ~ 10 am

8 pm ~ 12 pm

 Cool season

6 am ~ 10 am

7 am ~ 9 am

6 am ~ 10 am

6 am ~ 10 am

8 am ~ 12 am