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Paper Information

Title: 

EFFECT OF TERRESTRIAL RADIATION ON NOCTURNAL COOLING OF SURFACE LAYER AND PREDICTION OF MINIMUM TEMPERATURE IN SOUTH OF KHORASAN PROVINCE

Type: PAPER
Author(s): MALEKIFARD F.,BIDOKHTI A.*
 
 *INSTITUTE OF GEOPHYSICS TEHRAN UNIVERSITY
 
Name of Seminar: CONFRANCE ZHEOFIZIKE IRAN
Type of Seminar:  CONFERENCE
Sponsor:  ANJOMANE MELI ZHEOFIZIK IRAN
Date:  2006Volume 12
 
 
Abstract: 

SURFACE LAYER IN SOUTH OF KHORASAN PROVINCE HAS BEEN STUDIED TO FORECAST MINIMUM TEMPERATURE AND ISSUE EARLY WARNING FOR PREVENTION OF CROP FROSTING IN THE AREA. AT FIRST EFFECTIVE PARAMETERS IN SURFACE LAYER TEMPERATURE VARIATION WHERE STUDIED, THEN NECESSARY METEOROLOGICAL DATA FROM WEATHER STATIONS (BIRJAND, GHAEN AND GONABAD) IN THE STATISTICAL PERIOD WERE ANALYZED AND BY USING THEORETICAL MODELS OF BRUNT AND GROEN MINIMUM TEMPERATURE FOR CLEAR AND CALM NIGHT FORECAST THE RESULT WAS THAT GROEN MODEL WAS MORE EXACT THAN THE BRUNT MODEL. BUT GROEN MODEL IN HIGH HUMID CONDITION IS NOT ACCEPTABLE.

 
Keyword(s): NOCTURNAL COOLING, FROST, TERRESTRIAL RADIATION AND MINIMUM TEMPERATURE
 
 
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