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Zarys historii badań hydrogeologicznych w ośrodkach naukowych i naukowo-badawczych w Gdańsku

Jaworska-Szulc B., Lidzbarski M., Pruszkowska-Caceres M.

Przegląd Geologiczny

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2015

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Vol. 63, nr 10/1

769--773

EN

The history of the hydrogeological investigations in Gdańsk reaches the second half of the XIX century. The pre-war research of German hydrogeologists constitutes a very valuable comparative material currently. In the after-war history, beginning from 40. XX century, Prof. Z. Pazdro carried out research on hydrogeology of the Gdańsk region in the Gdańsk University of Technology. Helaid the foundations of modern hydrogeology not only in Gdańsk, but also in the whole Poland. After Professor’s Z. Pazdro relocation to Warsaw, his investigations were continued by Prof. B. Kozerski and other outstanding researchers of the region.

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Hydrogeochemistry and vulnerability of ground water in the moraine upland aquifers of the Gdańsk region (Northern Poland)

Pruszkowska M., Malina G.

Geological Quarterly

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2008

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Vol. 52, No 3

291-291

EN

The focus of this study was on determination and comparison of natural and current hydrogeochemical features of the groundwater, in order to evaluate changes of water quality and to identify the origin of these changes. Both natural processes and anthropogenic stress affect the chemical composition of groundwater were recognised. In both aquifer groups groundwater chemical composition dem on strates some similarities and is formed by the same kinds of natural processes, which are taking place already in the upper zones of the shallow aquifers, where groundwater is saturated with respect to most of carbon ate and clay minerals, as well as minerals containing Fe exp. 2+ ions. During seepage into deeper aquifers, water is being enriched with Fe exp. 2+ and Mn exp. 2+ ions and in some places with SO4exp.2 - and Mg exp.2+ as well. The types and intensity of human activities, as well as the vulnera ility of aquifers to contamination, were concluded to play an important role in generating the observed changes in the chemical character is tics of the groundwater. They effect on changes of hydrogeochemical back ground values (e.g. TDS, N-com pounds), the current in crease of maximum concentrations of N-com pounds, chlorides, sulphates, magnesium and TDS (total dissolved solids).

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Future sea level change: a transboundary problem in the baltic sea region? - seareg case study area Gdańsk

Staudt M., Kordalski Z.

Polish Geological Institute Special Papers

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2005

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Vol. 18

86-92

EN

The Interreg IIIB project Sea Level Change Affecting the Spatial Development of the Baltic Sea Region (SEAREG) addresses socio-economic and environmental aspects of the sea level rise in the Baltic Sea region (BSR). A rise of the sea level might lead to major flooding events, having severe impacts on the spatial development of cities and regions of the BSR. Ocean models and land uplift or land subsidence rates are factors that must be taken into account in addressing flood prone areas. One of the projects case study areas was city of Gdańsk. The Gdańsk region is a subject to land subsidence of 1- 2 mm/year. The low lying areas on the coastal terrace and on the Vistula Delta plain contain the most important aquifers for public water supply. For the Gdańsk region, the project’s sea level rise scenarios vary from 0.03 m (low case), 0.48 m (ensemble average), up to 0.97 m (high case). In the course of an impact and vulnerability assessment, the impact zones are superimposed with existing land use data. These flood-prone areas should be protected in the future and countermeasures have to be taken to mitigate danger of future flooding.

PL

Projekt "Sea Level Change Affecting the Spatial Development of the Baltic Sea Region" SEAREG, unijnego programu Interreg IIIB porusza społeczno-ekonomiczne i środowiskowe skutki zmian klimatu w regionie Morza Bałtyckiego (BSR), w szczególności związane z podnoszeniem się poziomu morza oraz zmianami odpływu z sieci rzecznej. Te dwa czynniki mogą prowadzić do wystąpienia katastrofalnych w skutkach powodzi, wpływających bezpośrednio na zagospodarowanie przestrzenne miast, jak również na zrównoważony rozwój całego regionu Morza Bałtyckiego. Jednym z miejsc objętych szczegółowym rozpoznaniem w ramach projektu był Gdańsk. W obrębie miasta na nisko położonych obszarach tarasu nadmorskiego i Żuław Wiślanych zlokalizowane są ujęcia wód podziemnych, ważne dla zaopatrzenia w wodę do picia i na potrzeby gospodarcze. Dla Gdańska strefy zagrożone powodzią i podtopieniami zostały wyznaczone przy pomocy oprogramowania GIS, z wykorzystaniem wysoko rozdzielczych regionalnych modeli oceanograficznych, modeli powierzchni terenu i planów zagospodarowania przestrzennego. Opracowano 3 scenariusze, według których poziom morza w ciągu następnych 100 lat wzrośnie w rejonie Gdańska odpowiednio o 0,03, 0,48 i 0,97 m.

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The magnetic susceptibility of soils and alluvial sediments from Gdansk region (northern Poland)

Nawrocki J., Lis J., Grabowski J., Pasieczna A.

Geological Quarterly

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2000

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Vol. 44, Nr 3

341-345

EN

Volume magnetic susceptibility of soils and alluvial sediments from the eastern Pomeranian region near Gdańsk was investigated. Full set of geochemical analyses had been previously performed for all the samples studied. The results are presented in the form of the susceptibility maps of the topsoil horizon, the subsoil at the depth between 40 and 60 cm and the alluvial sediments. Additionally the differential susceptibility map between topsoil horizon and the subsoil at the depth 40-60 cm has been also constructed. A close correlation is observed between positive anomalies of differential susceptibility and urban areas. This is interpreted as surface anthropogenic pollution. Magnetic susceptibility values higher than 1200 x 10-6 SI units, observed in topsoil horizon, might reflect high contents of such elements as Ba, Co, Mg, Mn and Ni.