Analysing of the descriptive (statistical) characteristics of hot days on the Persian Gulf coastline

Document Type : Original Article

Authors

1 Climatology, College of Social Sciences, University of Mohaghegh Ardabili University Email: mansure.taheri95@yahoo.com

2 PhD Climatology

Abstract
One of the climatic characteristics of temperature is the occurrence of extreme temperature, which can significantly affect biological and non-biological phenomena. This research investigated the descriptive (statistical) attributes of hot days with extreme temperatures on the Persian Gulf coastline. In this regard, the general features of temperature (average and coefficient of variation) of 12 synoptic stations of the Persian Gulf coastline (Khuzestan, Bushehr, and Bandar Abbas provinces) from 1961 to the end of 2018 were explored. In examining the general characteristics (average and coefficient of variation) of daily temperature for all 12 stations, the findings indicate that the coefficient of temperature variation decreases with the increase in average temperature. Upon closer examination of the temperature change coefficients at the discussed stations, it is evident that January exhibits the highest coefficient of temperature change while July, the hottest month, demonstrates the lowest change coefficient. Furthermore, in this study, extreme temperature for each day is defined as exceeding the average of the 75th percentile of observations at each station on the same day. Additionally, a day with extreme temperature is identified when such conditions occur in at least 50% of the stations. The area under study experiences 554 hot days, with 291 occurring in the hot season and 263 in the cold season.

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