Wydanie 340(45)1 2018

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https://oa.zut.edu.pl/handle/20.500.12539/699

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Przeglądaj Wydanie 340(45)1 2018 wg Autor "Institute of Technology and Life Sciences, West Pomeranian Research Centre in Szczecin, Poland"

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    The Multiannual Variability in the Occurrence of the Temperature Indices in the Pyrzycko-Stargardzka Plain Mesoregion
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Mąkosza, Agnieszka; Rawicki, Kacper; Department of Meteorology and Landscape Architecture, West Pomeranian University of Technology, Szczecin, Poland; Institute of Technology and Life Sciences, West Pomeranian Research Centre in Szczecin, Poland
    Days with air temperature (maximum or minimum) exceeding a specific threshold values constitute the grounds for analysing extreme temperature indices. Such days are the fundamental thermal characteristics of an area under analysis. Days with particularly low or high air temperature are relevant to various spheres of life, including human health and life and economy. The aim of this paper is the analysis of the variability and frequency of temperature indices occurrence in the Pyrzycko-Stargardzka Plain mesoregion in the period 1961–2015. The source material used in this study included maximum and minimum 24-hour air temperatures as recorded at agrometeorological station in Lipnik – located in the central part of the Plain. The classification created by Kossowska-Cezak (2014) was adopted to determine days with particular temperature indices. It was found that days with given temperature thresholds were recorded more frequently (24.0%) in a cold part of a year, than those characteristic for a warm part (8.9%). The results indicate a statistically significant negative trend in the total number of frost days, cold days, very cold days and a positive trend in the total number of days described as hot, very hot and extremely hot days. The most apparent statistically significant decrease was found for cold days (3.6 per 10 years), and increase for hot days (2.3 per 10 years). In the analysed period the most frequent were frost days (62.4) and hot days (26.7). Annualy, 15.7 nights with particular temperature indices were recorded – mostly classified as warm nights. The analysis showed a statistically significant increase (by 2.5 per 10 years) in the number of nights with particular temperature indices.