Autor: Trzeciak, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Badania modelowe strefy aeracji z wykorzystaniem programu Unsat Suite i badań georadarowych
Modelling research of the vadose zone using the UnSat Suite program and a ground-penetrating radar
Autorzy:: Gańko, M.
Trzeciak, J.
Zabłocki, S.
Powiązania:: https://bibliotekanauki.pl/articles/2075623.pdf
Data publikacji:: 2017
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: strefa aeracji
Unsat Suite
badania georadarowe
czas perkolacji
ładowanie
vadose zone
UnSat Suite
ground-penetrating radar
percolation time
recharge
Opis:: The purpose of this paper was to analyze the effect of detailed recognition and correct mapping of the boundaries between layers of different grain sizes on the results of modelling tests of the vadose zone. The modelling was performed using UnSat Suite software that enables modelling of water permeability and migration ofpollutants through the vadose zone using various numerical programs, including VS2DT that was used in this case study. Directfield research, including drilling of boreholes and ground-penetrating radar investigation, has shown a significant variation in lithology of the vadose zone in a small test area located in Włocławek city. Various sand fractions have been found: from fine to coarse sand, with varying filtration parameters and moisture content. Ground-penetrating radar investigations have enabled a more accurate recognition and refinement ofgeologic structures, particularly in the context oflithological boundaries, including the space between boreholes. The results of the modelling tests conducted in the vadose zone enabled determination of the velocity, time and volume of infiltration water.
Źródło:: Przegląd Geologiczny; 2017, 65, 11/2; 1202--1205
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Factors determining range and tendencies of groundwater level changes in Kampinos National Park wetland areas
Autorzy:: Krogulec, E.
Furmankowska, A.
Trzeciak, J.
Zabłocki, S.
Powiązania:: https://bibliotekanauki.pl/articles/2063004.pdf
Data publikacji:: 2010
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: renaturalisation
wetland areas
monitoring observations
groundwater level
Kampinos National Park
Opis:: The marsh zone areas include about 2,440 km2 in Kampinos National Park, which amount nearly 30% of park and its buffer’s surface. The specific characteristic of the KNP marsh zones is presence of shallow groundwater; mean depth to groundwater table is formed from 0.16 do 2.30 m. Range and tendencies of groundwater level changes in marsh zones are related to the influence of geogenic and anthropogenic factors. Among geogenic factors, the most important sense have distribution and seasonality of precipitation, which determine the value of infiltration recharge, evapotranspiration and watercourse drainage of shallow groundwater system. The basis of the researches on defining the role of factors determining range and tendencies of groundwater level changes in KNP, has been regular monitoring observations conducted in the park since 1999. The results of correlation indicate on high diversification of relation: atmospheric precipitation – depth to groundwater level. Determination of trend on the different significance levels provides detaching areas where relation between groundwater levels and precipitation is so high that influence of other environmental factors indicating on depth to groundwater table could be skipped and areas where the relation is so low, which indicates on influence of various factors. Groundwater level in marsh areas are characterized by large dynamic of changes. Since 1999, the beginning of the observations, downward trend of groundwater table has been observed, after 2003 the character of trend has been conversed. Another decreasing trend has started in 2007 and with assumption of previous tendencies, its inversion will occur after 2011 (after extremely dry year). Geostatistical analysis of spatial difference of mean year amplitude of depth to groundwater level enabled the assessment of surface water influence on groundwater level changes. The areas of highest value of amplitudes are localized in southern part of northern marsh belt and central part of southern marsh belt. Anthropogenic factors such as: water withdrawal and improper draining system, have not changed in recent years, so their influence can be called as “steady” and acceptably to eliminate in case of elaborating of programs of wetland areas renaturalisation.
Źródło:: Biuletyn Państwowego Instytutu Geologicznego; 2010, 441 Hydrogeologia z. 10; 73--81
0867-6143
Pojawia się w:: Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:: Biblioteka Nauki

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