Przeglądaj wg Autor "Rawicki, Kacper"

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    PozycjaOpen Access
    Assessment of agro-meteorological conditions of the vegetation period in 2015 in the Szczecin lowland
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016) Rawicki, Kacper; Mąkosza, Agnieszka; Institute of Technology and Life Sciences, West Pomeranian Research Centre in Szczecin; Department of Meteorology and Green Areas Management, West Pomeranian University of Technology, Szczecin
    The present study presents the analysis of thermal and pluviometric conditions on the basis of selected agro-meteorological indices in the vegetation period (IV–X) in 2015 in the Szczecin Lowland against the reference period of 1961–2014. With the use of the results of automatic measurements of air temperature, the following were identified: the beginning, the end and duration of vegetation period, as well as the sum of effective temperatures above the 5oC threshold. Additionally, the months were thermally classified according to Lorenc (2000) and the pluviometric conditions were assessed with the use of standardised precipitation index (SPI). It was found that in 2015 in the Szczecin Lowland, the thermal vegetation period lasted for 257 days with the date of beginning 19th of March, and the ending date 30th November. Therefore, the period was by 26 days longer than the average and fourth in terms of length as compared with the reference multi-year period. As compared to thermal conditions till the second half of the 1990s, the vegetation period under analysis was marked by high heat resources – the resources were average in comparison to the last several years. However, according to thermal classification, the period was characterised by average thermal conditions, yet the shortage of precipitation resulted in severe atmospheric drought as defined by the values of SPI index. The most unfavorable weather conditions were recorded in August which was marked by abnormally warm thermal conditions and extreme atmospheric drought.
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    PozycjaOpen Access
    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.
  • Miniatura
    PozycjaOpen Access
    Variability of Particulate Matter Concentrations in Poland in the Winter 2012/2013
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2014) Rawicki, Kacper; Institute of Technology and Life Sciences, West Pomeranian Research Centre in Szczecin, Poland
    W okresie zimowym pogorszenie jakości powietrza na ogół związane jest z przekroczeniem norm przyjętych dla pyłu zawieszonego; epizody smogowe prawie zawsze są następstwem zwiększonej emisji spowodowanej spadkiem temperatury powietrza i występują w naszym kraju prawie każdej zimy. Oceniono w pracy zmienność imisji pyłu w powiązaniu z temperaturą powietrza w okresie kalendarzowej zimy – od grudnia 2012 r. do lutego 2013 r. w głównych miastach Polski. Analizą objęto godzinne i dobowe stężenia obu frakcji pyłu zawieszonego, PM10 i PM2,5 zarejestrowanych w 25 stacjach. Stężenie PM10 przekraczające dobową normę (50 μg · m–3) stwierdzono w południowych rejonach kraju aż w 70% dni analizowanego sezonu zimowego, przy czym najwięcej w grudniu 2012 r. W tym miesiącu w większości stacji odnotowano także maksymalne dobowe wartości imisji. Wykazano, że zmienność warunków termicznych w analizowanym okresie miała statystycznie istotny wpływ na wielkość imisji pyłu PM2,5 i PM10 w powietrzu.
  • Miniatura
    PozycjaOpen Access
    Wstępna ocena poziomu stężenia mineralnych związków azotu i fosforu w wodach powierzchniowych zlewni jeziora Świdwie
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2014) Rawicki, Kacper; Siwek, Hanna; Zachodniopomorski Ośrodek Badawczy w Szczecinie. Instytut Technologiczno-Przyrodniczy w Falentach; Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Zakład Chemii Ogólnej i Ekologicznej
    An article presents results of six-month research (V–X 2012) of mineral nitrogen and phosphorus compounds on surface waters in Świdwie lake’s catchment area. In investigated water courses the concentration of nitrate nitrogen(V) classified water to I purity class and concentration of ammonium nitrogen classified most of these water-courses to II purity class. Whereas the concentration of the phosphate phosphorus(V) on the most of examined water- -courses exceeded II class limits for surface waters (especially on water courses running by built-up area). Positive influence of the Żurawie reservoir on the quality of waters flowing in to the Świdwie lake was noted. On the base of obtained results we concluded that Struga Żurawia and canal Bolkowo-Łęgi leading large amounts of phosphate phosphorus to Świdwie lake. It may cause to increased process of its eutrophication. However we did not found large amounts of investigated biogenic compounds in river Gunica which flows to Świdwie lake. On Świdwie lake outflow lower concentration of phosphorus(V) what is the evidence of phosphates cumulation in the lake.