
54
Installation, Operation and Maintainance of Automatic Meteorological Stations
3: 3 Z Loc [ SOLAR_RAD ]
23: End (P95)
;SOLAR RADIATION IS SET TO NUL IN CASE OF NEGATIVE VALUES, WHICH MAY OCCUR
;AT NIGHT
24: Z=X*F (P37)
1: 3 X Loc [ SOLAR_RAD ]
2: 0.3 F
3: 11 Z Loc [ FM_SOLAR ]
;INCOMING SOLAR RADIATION IS IN W/M2, THUS J/S,M2, IN ORDER TO ARRIVE AT
;CUMMULATIVE VALUES, SOLAR_RAD HAS TO BE MULTIPLIED BY TIME IN SECONDS
;FIVE MINUTES SOLAR RADIATION (FM_SOLAR) = SOLAR_RAD*300
;THIS STEP IS AN AUXILIARY FOR CREATING HOURLY/DAILY VALUES
;THE RESULTING FM_SOLAR IS PRESENTED IN [KJ/M2]
25: Z=X (P31)
1: 12 X Loc [ OH_SOLAR ]
2: 13 Z Loc [ AUX_OHS ]
26: Z=X*F (P37)
1: 11 X Loc [ FM_SOLAR ]
2: 0.001 F
3: 14 Z Loc [ AUXFM_SO ]
;TO TRANSFER FIVE MINUTE SOLAR RADIATION FROM [KJ/M2] TO [MJ/M2]
27: Z=X+Y (P33)
1: 13 X Loc [ AUX_OHS ]
2: 14 Y Loc [ AUXFM_SO ]
3: 12 Z Loc [ OH_SOLAR ]
;INSTRUCTIONS 22 AND 23 FOR: “OH_SOLAR=OH_SOLAR+AUXFM_SO”, IN ORDER TO CREATE
;CUM. HOURLY VALUES; THIS EQUATION IS NOT DIRECTLY ACCEPTED, HENCE THE AUXILIARY
;STEP; OH_SOLAR = CUMMULATIVE ONE HOUR INCOMING SOLAR RADIATION IN [MJ/M2]
28: Z=X (P31)
1: 15 X Loc [ OD_SOLAR ]
2: 16 Z Loc [ AUX_ODS ]
29: Z=X+Y (P33)
1: 16 X Loc [ AUX_ODS ]
2: 14 Y Loc [ AUXFM_SO ]
3: 15 Z Loc [ OD_SOLAR ]
;INSTRUCTIONS 24 AND 25 FOR: “OD_SOLAR=OD_SOLAR+AUXFM_SO”, IN ORDER TO CREATE
;DAILY VALUES; THIS EQUATION IS NOT DIRECTLY ACCEPTED, HENCE THE AUXILIARY STEP
;OD_SOLAR = CUMMULATIVE ONE DAY INCOMING SOLAR RADIATION IN [MJ/M2]
30: Z=X (P31)
1: 1 X Loc [ AIR_TEMP ]
Annexes
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