KS I ISO 17714-2009 Meteorology-Air temperature measurements-Test methods for comparing the performance of thermometer shields screens and defining important characteristics《气象学 空气.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS I ISO 17714 / KS I ISO 17714:2009 2009 12 18 http:/www.kats.go.krKS I ISO 17714:2009 : ( ) ( ) ( ) ( ) : (ISO/TC146) ( ) ( ) : (http:/www.standard.go.kr) ： ：2009 12 18 2009-0831 ： ： (ISO/TC146) ( 02-509-7266) (http:/www.kats.go.kr). 10 5 , . KS I ISO 1771

2、4:2009 / Meteorology Air temperature measurements Test methods for comparing the performance of thermometer shields/screens and defining important characteristics 2007 1 ISO 17714, Meteorology Air temperature measurements Test methods for comparing the performance of thermometer shields/screens and

3、defining important characteristics , . 1 / , . , . . 2 . 2.1 (aspiration rate) (m/s) . 2.2 (internal ventilation factor) . KS I ISO 17714:2009 2 2.3 (representative height) 1 , . 2 , . . 2.4 (screen) , 2.5 (screen reference point) 2.6 (solar radiation errors) 2.7 (system response time) 1 m s 1 63 %

4、1 , . 2 . 1 m/s . 2.8 (thermometer) (KS C IEC 607511) (ASTM E 644-042) . 3 3.1 . , , , , , , . . . 3.2 KS I ISO 17714:2009 3 , . . 10 cm . , (A.8 ). , , , 30 m . , . 3 m . 1.25 m 2 m WMO . , 5 % . , / . 3.3 . . . , , , , . 3.4 . WMO3 30 . . 0.2 K . 3.5 . (solar global radiation) ( / ) 1 2 . . , . 0.

5、5 m/s . . 10 m ( ) 1 2 . 10 m , (10 m ) . KS I ISO 17714:2009 4 , . . ( , ) . (direct solar radiation) . WMO3 . 3.6 1 . 6 . , 1 Hz . 3.7 . ( ) . , . . . , . ( 15 m4, 5) . . . . ( / ) . , , A . KS I ISO 17714:2009 5 . , , , , , . 3.8 . . . ( ) . . . . 3.10 . 3.9 . . . . . ( 1 m/s), . ( .) , , . 3.10

6、. . KS I ISO 17714:2009 6 . . . , . . 6 . 1 m/s ( ) 5 m/s ( ) 2 m/s ( ) 1 m/s ( ) ( ) 1 m/s ( 12 ) ( ) 2 m/s ( ). . 3.11 , , , , , , , , . 4 4.1 . 0.2 K , 0.2 K/min . , . . . 4.2 1 ( ) . ( B.1 ). . 4.3 ( ) 1 KS I ISO 17714:2009 7 . , ( B.2 ). , ( B.4 ). 4.4 ( ) . 1 . . ( B.3 ). 1 . 1 m/s 2 4 m/s 5 m

7、/s 4.5 . . , ( , ) . (A.9 ). . 4.6 KS I ISO 17714:2009 8 , , ( B.4 ). “ ”(3.10) . “ ” ( ) . . . 5 5.1 . . . . . a) , 1 m/s . . b) : . 5 m/s . . (wind rose) . . 20 m/s . . 5.2 . , (2.3) . . . . 1 1 m/s 5 m/s . , . 5.3 (2.5) (2.3) . , . . KS I ISO 17714:2009 9 5.4 . . . . a) , . b) . , 5 10 K . c) 1 H

8、z . d) . , . e) 1 m/s10 % . f) , , . 1 m/s10 % , 0.5 K . g) 63 % . , . ( B.5 ). 1) t , T t . 2) (t1, T1) . 3) (t2, T2) , . 80 % . 4) t1 t2t3 (t1 t2)/2 (t3, T3) . 5) 1 =321313lnTTTTtt . 6) . ( ) 1 . . KS I ISO 17714:2009 10 A ( ) A.1 (6 27). (28 31). . A.2 A.2.1 . (32). . A.2.2 1 000 W/m2 . (33 35). . . . . . . ( ) . . , . 0.2 0.9 . . . A.2.3 ( 0.9 0.95 ) . . ( ) , / KS I ISO 17714:2009 11 ( ) ( ). 1 K 5 W/m2 , . . , 30 . . , . , ( ). . . . . A.3 , (35). . , 2.5 m/s 10 m/s . . , . . , 1 m/s . ( 5 m/s ) , .