DETERMINATION OF WIND CHILL INDEX BASED ON THE CLIMATIC DATA IN IRAN

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RANJBAR S.; KAMALI GH.A.; ATAEI H.; GANDOMKAR A.

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Journal: JOURNAL OF PHYSICAL GEOGRAPHY Year:2016 | Volume:9 | Issue:3 (33) Page(s): 67-81

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Title

DETERMINATION OF WIND CHILL INDEX BASED ON THE CLIMATIC DATA IN IRAN

Author(s)

RANJBAR S. | KAMALI GH.A. | ATAEI H. | GANDOMKAR A. | Issue Writer Certificate

Keywords

WIND CHILLQ1

MINIMUM TEMPERATUREQ2

SYNOPTIC STATIONQ2

WINDQ2

Abstract

Climate is so important for the life and development of the living organisms on Earth. Among all the effects of different atmospheric variables on human comfort, the effect of combined WIND and temperature is of particular significance. In this study, using statistical data of MINIMUM TEMPERATURE and WIND speed of the SYNOPTIC STATIONs during the period 1374 to 1393, which were obtained from the Meteorological Organization, the chill WIND was zoned in the country. Results that were obtained from data analysis of 120 to 314 SYNOPTIC STATIONs (for different time intervals) showed that we can consider the months of Aban to Farvardin as the start and end of WIND CHILL in Iran, respectively. For days of Aban to Farvardin, the average reduction in MINIMUM TEMPERATURE of 4 degrees Celsius in Bahman due to the WIND blowing has been felt. Zoning maps of the country that were traced for the cold months (from Aban to Farvardin), showed that the difference between minimum air temperature and the temperature that can be felt on human body (WIND CHILL) is meaningful as Well (Level of significance is in the range of 0.51 to 0.74). The highest frequency of WIND CHILL is related to the year of 1390 with 18088 cases from 330 stations that are under study and the lowest is related to the year of 1374 with 4321 cases. It should be noted that from the base year (1374) onwards, the frequency of the WIND CHILL occurrence has increased and the numbers of cold days because of the WIND existence in the cities of the country are increasing too. By investigating the frequency of WIND CHILL occurrence in the months which are under the study, the month of Bahman with 47219 cases from 350 stations and the month of Aban with 17728 cases from 305 stations, had the highest and the lowest frequency of occurrence.

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APA: Copy

RANJBAR, S., KAMALI, GH.A., ATAEI, H., & GANDOMKAR, A.. (2016). DETERMINATION OF WIND CHILL INDEX BASED ON THE CLIMATIC DATA IN IRAN. JOURNAL OF PHYSICAL GEOGRAPHY, 9(3 (33)), 67-81. SID. https://sid.ir/paper/184986/en

Vancouver: Copy

RANJBAR S., KAMALI GH.A., ATAEI H., GANDOMKAR A.. DETERMINATION OF WIND CHILL INDEX BASED ON THE CLIMATIC DATA IN IRAN. JOURNAL OF PHYSICAL GEOGRAPHY[Internet]. 2016;9(3 (33)):67-81. Available from: https://sid.ir/paper/184986/en

IEEE: Copy

S. RANJBAR, GH.A. KAMALI, H. ATAEI, and A. GANDOMKAR, “DETERMINATION OF WIND CHILL INDEX BASED ON THE CLIMATIC DATA IN IRAN,” JOURNAL OF PHYSICAL GEOGRAPHY, vol. 9, no. 3 (33), pp. 67–81, 2016, [Online]. Available: https://sid.ir/paper/184986/en

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