Arkadiusz Marek Tomczyk
Articles
Growing seasons in Poland in the period 1971-2010
Przegląd Geograficzny (2016) tom 88, zeszyt 1, pp. 75-86 | 
Full text
doi: https://doi.org/10.7163/PrzG.2016.1.4
Abstract
The work detailed in this article aimed to determining the multi-annual and spatial variability characterising start and end dates of growing seasons in Poland, as well as their durations. The study used data concerning monthly air temperature from the period 1971-2010, which were obtained from the Institute of Meteorology and Water Management - National Research Institute (IMGW-PIB). A growing season was defined as a period of mean daily air temperature 5°C. To determine the start and end dates of the above-mentioned period, use was made of the mathematical formulae proposed by R. Gumiński (1948). Over the analysed multiannual period, first days of growing seasons were seen to occur ever earlier, while last days have been occurring later and later. The most marked changes of start date were found to characterise Łeba (4.7 days/10 years) and Suwałki (4 days/10 years). However, at 5 of the 15 stations, the changes noted achieved statistical signifi cance. The most considerable postponements of the end of the growing season were in turn those found for Łeba (3.8 days/10 years) and Rzeszów (3.6 days/10 years). At as many as 8 of the 15 stations, the prolongations proved to be significant statistically. Average durations of growing seasons varied across the range from 200 days in Suwałki to 237 days in Wrocław. However, at most (11 out of 15) of the stations, there was a statistically significant increase in the duration of the growing season (of from 3.9 to 8.5 days). However, the change was seen to be more due to prolongation at the end of the growing season than to a changed start date.
Keywords: początek okresu wegetacyjnego, koniec okresu wegetacyjnego, długość okresu wegetacyjnego, metoda Gumińskiego, Polska
, Adam Mickiewicz University Institute of Physical Geography and Environmental Planning Dzięgielowa 27, 61-680 Poznań: Poland
Citation
APA: Tomczyk, A., & Szyga-Pluta, K. (2016). Okres wegetacyjny w Polsce w latach 1971-2010. Przegląd Geograficzny, 88(1), 75-86. https://doi.org/10.7163/PrzG.2016.1.4
MLA: Tomczyk, Arkadiusz Marek, and Szyga-Pluta, Katarzyna. "Okres wegetacyjny w Polsce w latach 1971-2010". Przegląd Geograficzny, vol. 88, no. 1, 2016, pp. 75-86. https://doi.org/10.7163/PrzG.2016.1.4
Chicago: Tomczyk, Arkadiusz Marek, and Szyga-Pluta, Katarzyna. "Okres wegetacyjny w Polsce w latach 1971-2010". Przegląd Geograficzny 88, no. 1 (2016): 75-86. https://doi.org/10.7163/PrzG.2016.1.4
Harvard: Tomczyk, A., & Szyga-Pluta, K. 2016. "Okres wegetacyjny w Polsce w latach 1971-2010". Przegląd Geograficzny, vol. 88, no. 1, pp. 75-86. https://doi.org/10.7163/PrzG.2016.1.4
Synoptic conditions underpinning intensive snowfalls in selected regions of Europe
Przegląd Geograficzny (2014) tom 86, zeszyt 3, pp. 365-380 | Full text
doi: https://doi.org/10.7163/PrzG.2014.3.4
Abstract
The aim of the work described here has been to determine synoptic situations associated with intensive snowfalls in selected regions of Europe. Specifi cally, an analysis was carried out for three stations representing regions with different climatic conditions in winter. Synoptic conditions were characterized on the basis of atmospheric pressure at sea level, the height of the 500 hPa isobaric area and air temperature at the 850 hPa isobaric level. Typical features of synoptic situations leading to intensive snowfalls in Belgrade are negative SLP anomalies and a lowering height of the 500 hPa isobaric area over SouthernEurope, as indicating the presence of a low-pressure system. Heavy snowfalls in Suwałki, Poland, are in turn associated with the occurence of a low-pressure system centred on the south-eastern Baltic Sea. Finally, the occasional snowstorms characterising Ubachsberg in The Netherlands are associated with extensive low-pressure troughs that bring in humid and cold air masses from the north and north-west.
Keywords: Europa, pokrywa śnieżna, cyrkulacja, warunki synoptyczne
, Adam Mickiewicz University Institute of Physical Geography and Environmental Planning Dzięgielowa 27, 61-680 Poznań: Poland
Citation
APA: Tomczyk, A., & Bednorz, E. (2014). Synoptyczne uwarunkowania intensywnych opadów śniegu w wybranych regionach Europy. Przegląd Geograficzny, 86(3), 365-380. https://doi.org/10.7163/PrzG.2014.3.4
MLA: Tomczyk, Arkadiusz Marek, and Bednorz, Ewa. "Synoptyczne uwarunkowania intensywnych opadów śniegu w wybranych regionach Europy". Przegląd Geograficzny, vol. 86, no. 3, 2014, pp. 365-380. https://doi.org/10.7163/PrzG.2014.3.4
Chicago: Tomczyk, Arkadiusz Marek, and Bednorz, Ewa. "Synoptyczne uwarunkowania intensywnych opadów śniegu w wybranych regionach Europy". Przegląd Geograficzny 86, no. 3 (2014): 365-380. https://doi.org/10.7163/PrzG.2014.3.4
Harvard: Tomczyk, A., & Bednorz, E. 2014. "Synoptyczne uwarunkowania intensywnych opadów śniegu w wybranych regionach Europy". Przegląd Geograficzny, vol. 86, no. 3, pp. 365-380. https://doi.org/10.7163/PrzG.2014.3.4
Circulation-related conditioning of the occurrence of heatwaves in Poznań
Przegląd Geograficzny (2014) tom 86, zeszyt 1, pp. 41-52 | Full text
doi: https://doi.org/10.7163/PrzG.2014.1.3
Keywords: fale upałów, cyrkulacja atmosferyczna, sytuacja synoptyczna, Poznań
, Adam Mickiewicz University Institute of Physical Geography and Environmental Planning Dzięgielowa 27, 61-680 Poznań: Poland
Citation
APA: Tomczyk, A. (2014). Cyrkulacyjne uwarunkowania występowania fal upałów w Poznaniu. Przegląd Geograficzny, 86(1), 41-52. https://doi.org/10.7163/PrzG.2014.1.3
MLA: Tomczyk, Arkadiusz Marek. "Cyrkulacyjne uwarunkowania występowania fal upałów w Poznaniu". Przegląd Geograficzny, vol. 86, no. 1, 2014, pp. 41-52. https://doi.org/10.7163/PrzG.2014.1.3
Chicago: Tomczyk, Arkadiusz Marek. "Cyrkulacyjne uwarunkowania występowania fal upałów w Poznaniu". Przegląd Geograficzny 86, no. 1 (2014): 41-52. https://doi.org/10.7163/PrzG.2014.1.3
Harvard: Tomczyk, A. 2014. "Cyrkulacyjne uwarunkowania występowania fal upałów w Poznaniu". Przegląd Geograficzny, vol. 86, no. 1, pp. 41-52. https://doi.org/10.7163/PrzG.2014.1.3