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Analiza poplav podzemnih voda v Pomurju
Ostruh, Patricija (Author), Brenčič, Mihael (Mentor) More about this mentor... This link opens in a new window

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Abstract
V Sloveniji je ena izmed regij, kjer je možnost za razvoj poplav podzemnih voda, Pomurje. Za Pomurje je značilen medzrnski vodonosnik, kjer se podzemna voda nahaja plitvo pod površjem. Za določitev poplavnih dogodkov v Pomurju sem uporabila krivuljo trajanja, s pomočjo katere sem določila mejno poplavno gladino podzemne vode, ki označuje začetek poplave. S pomočjo tega sem določila pet poplavnih dogodkov, ki veljajo za zvezen dogodek v Pomurju. Določeni so bili poplavni dogodki v letih 1955, 1965, 1995, 2013, 2014. Za najbolj intenziven dogodek se je izkazal poplavni dogodek v septembru leta 2014. Pomemben podatek pri poplavah so tudi povratne dobe. Za izračun le-teh so bile uporabljene različne krivulje porazdelitve, in sicer Log Pearson 3 ter generalizirana porazdelitev ekstremnih vrednosti (1., 2. tipa). Največkrat je bila uporabljena porazdelitev Log Pearson 3, in sicer v primeru 11 merilnih postaj. Izračuni so bili narejeni za 13 merilnih postaj. Izkazalo se je tudi, da je za manjše povratne dobe ujemanje s teoretičnimi krivuljami zelo dobro, medtem ko je za večje povratne dobe ujemanje slabše, vendar še vedno zadosti dobro, da lahko rezultate uporabimo. Le pri sami interpretaciji je potrebno upoštevati večjo napako. Glede na koto tal in povratne dobe sem določila tudi ranljivost območja merilnih postaj za poplave podzemne vode. Za območja, kjer je možen preliv na površino in so povratne dobe manjše od 100 let, so se izkazala naslednja območja: Melinci, Krog in Rankovci. Prav tako je območje merilne postaje Rankovci edino območje, kjer je se je do sedaj zgodil preliv podzemne vode na površino.

Language:Slovenian
Keywords:hidrogeologija, poplave podzemne vode, Pomurje, povratne dobe
Work type:Master's thesis/paper (mb22)
Organization:NTF - Faculty of Natural Sciences and Engineering
Year:2020
COBISS.SI-ID:33285379 Link is opened in a new window
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Downloads:38
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Secondary language

Language:English
Title:Analysis of groundwater floods in Pomurje
Abstract:
Pomurje is one of the regions in Slovenia, where there is a possibility of the groundwaters floods. For Prekmurje, the intergranular aquifer is typical, with shallow groundwater. For the determination of groundwater flood events in Pomurje, the duration curves were used. On the base of the duration curve, treshold level of groundwater was determined, which marks the beginning of the flood. 5 flood events were determined, which represent a continuous event in Pomurje. The flood events were determined in the years 1955, 1965, 1995, 2013, and 2014. The event in September 2014 was determined to be the most intensive. Important data for flood are return periods. For the calculation of the return period different types of distribution curves were used, such as Log Pearson 3, and generalized extreme value distribution (GEV). In most cases for the selected station Log Pearson 3 was utilized, specifically in 11 cases. The calculations were made for 13 stations. Lower return periods had a good fitting with the theoretical distribution curve, meanwhile higher return periods had worse fittings. But the latter were still good enough for the results to be used. Considering the surface and return period, the vulnerability of the area was also determined. In the area where there is a possibility of the groundwater reaching surface and the return period is less than 100 years, there are the following stations: Melinci, Krog and, Rankovci. The area of station Rankovci is also the only place where the underground water had reached the surface.

Keywords:hydrogeology, underground floods, Pomurje, return periods

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