Badania Fizjograficzne, Seria A, Tom 66, 2015
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Browsing Badania Fizjograficzne, Seria A, Tom 66, 2015 by Subject "Europe"
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Item Kontynentalizm termiczny w Europie(Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk, 2015) Witek, Michał; Bednorz, Ewa; Forycka-Ławniczak, HannaFive indices of thermal continentality were computed for 84 stations in Europe and shown in the maps. The thermal continentality in Europe is spatially variable and increases eastward and southward from the northwestern shores towards Asia. Continental features are distinct in the interior of the Iberian Peninsula and in the northeastern part of the Scandinavian Peninsula, despite their small distance from the Atlantic Ocean. Most continentality indices (Chromow’s, Ewert’s, Conrad’s, Johansson-Ringleb’s) reveal a similar spatial pattern of thermal continentality in Europe, and they allow the continent to be divided into a western and eastern part along meridian 20–25°E. Marsz’s index, which takes into consideration the level of oceanity, indicates a narrow zone along the northwestern shore as oceanic and the remaining part of Europe as continental.Item Stability of high and low flow periods on European rivers(Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk, 2015) Wrzesiński, DariuszThe aim of this paper is to examine regional differences in the flow regime of European rivers. The stability of a flow regime is defined as the regularity of high and low flow periods during a year (Corbus and Stanescu, 2004). The first, second, and third maximum and minimum values of the mean monthly flows during the year served as regime characteristics, i.e. descriptors of the regime phases. A series of monthly discharges recorded during the years 1951–1990 at 510 stations on 369 European rivers were analysed. The coefficient of stability used in the analysis enables an extension of classical hydrological regime analysis. The proposed approach allows not only to establish the term of high and low flow periods of the river, but it also shows the regularity (stability) of their occurrence.