STATISTICAL STUDY OF SPRING AND FALL CHILLING AND FREEZING OCCURENCES IN EAST AZARBAIJAN PROVINCE

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KAMALI GH.A.; SAHRAEIAN F.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2006 | Volume:15 | Issue:4 Page(s): 197-209

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Title

STATISTICAL STUDY OF SPRING AND FALL CHILLING AND FREEZING OCCURENCES IN EAST AZARBAIJAN PROVINCE

Author(s)

KAMALI GH.A. | SAHRAEIAN F. | Issue Writer Certificate

Keywords

CHILLINGQ3

EAST AZARBAIJANQ4

FREEZINGQ4

RETURN PERIODQ2

THERMAL THRESHOLDQ3

Abstract

Plant growth is a function of climate, especially temperature. Every year high damages arc occurred due to low temperatures. Prediction of CHILLING and FREEZING temperatures both in space and time is very important among the basic researches in agricultural meteorology. In this study minimum daily temperature of Ahar, Tabriz, Jolfa, Sarab, Maragheh and Mianeh Stations in EAST AZARBAIJAN were analyzed for a period of 47 years. The probabilities of first fall and late spring FREEZING temperatures were studied for the above stations. The results showed that first fall FREEZING occurs in 26th September and late spring FREEZING occursin 1st May. Nonexceeding probability of 25% for first FREEZING in Sarab is 26th September, in Ahar 18th October, in Tabriz 4th November, for Maragheh and Jolfa 10thNovember and in Mianeh 13th November, respectively. The results also showed that the occurrence of FREEZING temperature in this province is delayed from North to South. In relation to late spring FREEZING with the probability of 25% date of occurrence of this FREEZING are in April for Ahar, 28th March for Tabriz, 25th March for Jolfa and Mianeh, 1st May for Sarab and 24th March for Maragheh. Number of FREEZING days in Sarab is 213 days and the minimum number belongs to Maragheh with 134 days. Generally FREEZING is more probable in Northeastern part of this province.

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APA: Copy

KAMALI, GH.A., & SAHRAEIAN, F.. (2006). STATISTICAL STUDY OF SPRING AND FALL CHILLING AND FREEZING OCCURENCES IN EAST AZARBAIJAN PROVINCE. JOURNAL OF AGRICULTURAL KNOWLEDGE, 15(4), 197-209. SID. https://sid.ir/paper/28974/en

Vancouver: Copy

KAMALI GH.A., SAHRAEIAN F.. STATISTICAL STUDY OF SPRING AND FALL CHILLING AND FREEZING OCCURENCES IN EAST AZARBAIJAN PROVINCE. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2006;15(4):197-209. Available from: https://sid.ir/paper/28974/en

IEEE: Copy

GH.A. KAMALI, and F. SAHRAEIAN, “STATISTICAL STUDY OF SPRING AND FALL CHILLING AND FREEZING OCCURENCES IN EAST AZARBAIJAN PROVINCE,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 15, no. 4, pp. 197–209, 2006, [Online]. Available: https://sid.ir/paper/28974/en

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