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Tytuł:
Kartografia 4D w strefie brzegowej południowego Bałtyku - zadanie państwowej służby geologicznej
Integrated geological mapping of the coastal zone of the southern Baltic Sea - task of the Polish Geological Survey
Autorzy:
Uścinowicz, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/20225724.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
morze Bałtyckie
strefa przybrzeżna
interakcje ląd-morze
mapowanie geologiczne
Baltic Sea
coastal zone
land-sea interactions
geological mapping
Opis:
The research task Geological integrated coastal zone mapping concerns the recognition and visualization of the geological structure of the Polish coastal zone, enriched with the modelling of erosion-accumulation processes, including prediction of changes in the position of the shoreline and identification of geohazards. It has been running since 2012 and implements multi-instrumental research methods. To date, a total length of about 155 km of the Polish coastal zone has been studied in an area of about 621 km 2 . The main results of the work are presented in the form of maps (e.g., lithogenetic, hydrogeological, geohazard), models (e.g., morpho-geological, hydrodynamic, predictive) and specialized analyses (e.g., morphodynamical, slope stability). In general, the work carried out is done for a utilitarian purpose, i.e. aimed at the practical use of environmental information. According to the standards of the Polish Geological Survey, most of the geological data acquired can be geoprocessed.
Źródło:
Przegląd Geologiczny; 2023, 71, 3; 138-144
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential Use of Mangroves as Nature-Based Solutions to Improve Navigation Conditions in a Port in Southern Brazil
Autorzy:
Previti, L. S.
Alfredini, P.
Powiązania:
https://bibliotekanauki.pl/articles/24201478.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
navigation
fluid mud
coastal ecosystem
mangroves
wetlands
port engineering
nature based solutions
deforestation
Opis:
Mangroves and the associated shoal forest known as ‘restinga' are ecosystems of great ecological relevance that play a significant role in the protection of the coastline in tropical regions. In Brazil, the coastal region has been severely affected by urban expansion. The Paranaguá Port, located in Paraná State (Brazil), is the fourth most important Brazilian port in throughput, and is located in an estuarine region which features large mangrove forests. An historical assessment of its inner access channel dredging rates was made to assess the impacts that the expansion of the Port in the last 30 years may have caused to the ecosystem. In the following, the historical data concerning the dredged volume in the inner access channel was compared to the mangrove and the shoal forest associated variation, aiming to establish a potential correlation between vegetation and siltation in the inner access channel to show as the preservation or restoration of specific ecosystems has potential to Nature-Based Solutions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 507--513
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A system for the determination of surface water pCO2 in a highly variable environment, exemplified in the Southern Baltic Sea
Autorzy:
Stokowski, M.
Makuch, P.
Rutkowski, K.
Wichorowski, M.
Kulinski, K.
Powiązania:
https://bibliotekanauki.pl/articles/2078920.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
surface water
carbon dioxide
coastal zone
environment change
inorganic carbon
open water
Baltic Sea
Opis:
Measurement of pCO2 in highly dynamic coastal zones such as the southern Baltic Sea presents many challenges. In this study, we designed a system to measure pCO2 and then validated it in a series of laboratory and seagoing tests. The fast response time of the system was shown to provide a better resolution of CO2 system gradients. In the open waters of the Baltic Sea, the accuracy of the pCO2 measurements (±1.3 μatm) met the requirements of the ICOS (±2.0 μatm). In the coastal zone, there was less consistency between pCO2, DIC and pH measurements, suggesting the need to redefine the quality assurance and control requirements for the measurement of pCO2 in dynamic regions.
Źródło:
Oceanologia; 2021, 63, 2; 276-282
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution and extent of benthic habitats in Puck Bay (Gulf of Gdansk, Southern Baltic Sea)
Autorzy:
Sokolowski, A.
Jankowska, E.
Balazy, P.
Jedruch, A.
Powiązania:
https://bibliotekanauki.pl/articles/2078880.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
benthic habitat
Puck Bay
Gdansk Gulf
Baltic Sea
biological value
aesthetic value
ecosystem
maritime spatial planning
sustainable management
coastal environment
Opis:
The majority of the southern Baltic Sea seabed encompasses homogenous softbottom sediments of limited productivity and low biological diversity, but shallow productive areas in the coastal zone such as wetlands, vegetated lagoons and sheltered bays show a high variety of benthic habitat types offering favourable biotopic conditions for benthic fauna. Within Polish marine areas, semi-enclosed Puck Bay (the western part of the Gulf of Gdansk) ´ features an exceptionally diverse environment covering a range of benthic habitats which underscores its unique biological value and aesthetic quality and providing an impetus for conservation and ecosystem-based development. Full-coverages maps on benthic habitats in this area are therefore a necessary foundation for maritime spatial planning and implementation of strategies for sustainable management and protection of the coastal environment. This study presents the first comprehensive description and distribution of benthic habitats in Puck Bay which were categorised using the revised EUNIS 2019 classification system. Typological analyses were carried out based on inventory datasets from 1995 to 2019 including scientific publications, satellite images, open databases, topographic and geological maps, reports, theses, information available on websites and unpublished data shared willingly by individual researchers and administrative institutions. Collating various spatial data sources, that were first georeferenced and then visualized using techniques available in ArcMap 10.4.1 software (Esri), resulted in the mapping of benthic habitats and sites of important and protected plant species, which can contribute to the high confidence in environmental assessments and monitoring activities.
Źródło:
Oceanologia; 2021, 63, 3; 301-320
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geohazard assessment of the coastal zone : the case of the southern Baltic Sea
Autorzy:
Uścinowicz, Grzegorz
Szarafin, Tomasz
Pączek, Urszula
Lidzbarski, Mirosław
Tarnawska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2058861.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coastal measurements
northern Poland
land-sea interaction
Opis:
Research by the Polish Geological Survey has been carried out along the southern Baltic coastal zone over a distance of 38 km. The Baltic Sea is classified as non-tidal, and its southern coasts are built entirely of weakly lithified sedimentary rocks. These deposits form three main types of coast, namely cliffs, barriers and alluvial coasts (wetlands), with the research focusing on the first two. Methods including remote sensing, mapping (geological, hydrogeological), offshore survey (bathymetric and geophysical measurements), laboratory analyses and modelling revealed a number of natural hazards. These are, respectively: (1) permanently occurring hazards, causing material damage such as: landslides, coastal erosion and seabed erosion; (2) incidental hazards such as dune breakage and storm surge overflow and (3) hypothetical threats that may occur in the future, such as hydrogeohazards defined here as flooding resulting from groundwater level rise or more rarely, earthquake threats.
Źródło:
Geological Quarterly; 2021, 65, 1; 5
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microphytobenthic primary production on exposed coastal sandy sediments of the Southern Baltic Sea using ex situ sediment cores and oxygen optodes
Autorzy:
Kuriyama, K.
Grundling-Pfaff, S.
Diehl, N.
Woelfel, J.
Karsten, U.
Powiązania:
https://bibliotekanauki.pl/articles/2078927.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
microphytobenthos
primary production
sandy sediment
coastal water
benthic diatom
oxygen consumption
oxygen production
respiration
hydrodynamics
Baltic Sea
Opis:
The shallow coastal water zone of the tide-less southern Baltic Sea is dominated by exposed sandy sediments which are typically inhabited by microphytobenthic communities, but their primary production is poorly studied, and hence four stations between 3.0 and 6.2 m depth were investigated. Sediment cores were carefully taken to keep the natural layering and exposed in a controlled self-constructed incubator. Respiratory oxygen consumption and photosynthetic oxygen production were recorded applying planar oxygen optode sensors. We hypothesized that with increasing water depths the effects of wind- and wave-induced erosion and mixing of the upper sediment layer are dampened and expected higher microphytobenthic biomass and primary production in the incubated cores. Our data partly confirm this hypothesis, as cores sampled at the most exposed stations contained only 50% chlorophyll a m−2 compared to the deeper stations. However, primary production was highly variable, probably due to fluctuating sediment-disturbing conditions before the cores were taken. Due to these physical forces sand grains were highly mobile and rounded, and small epipsamic benthic diatoms dominated, which preferentially occurred in some cracks and crevices as visualized by scanning electron microscopy. The data fill an important gap in reliable production data for sandy sediments of the southern Baltic Sea, and point to the ecological importance and relevant contribution of microphytobenthic communities to the total primary production of this marine ecosystem. Oxygen planar optode sensor spots proved to be a reliable, sensitive and fast detection system for ex situ oxygen exchange measurements in the overlying water of intact sediment cores.
Źródło:
Oceanologia; 2021, 63, 2; 247-260
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal pattern of the chlorophyll-a in a coastal lagoon from the Southern Baja California (Mexico), described with in situ observations and MODIS-Aqua imagery
Autorzy:
Jimenez-Quiroz, M.C.
Martell-Dubois, R.
Cervantes-Duarte, R.
Cerdeira-Estrada, S.
Powiązania:
https://bibliotekanauki.pl/articles/2078912.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll a
coastal lagoon
remote sensing
transitional zone
climatology
seasonal pattern
phytoplankton biomass
distribution
multivariate statistical method
MODIS-Aqua data
Opis:
This study aims to estimate, with a climatology perspective, the average seasonal pattern of phytoplankton biomass (SP-PBavg) and its distribution in Bahia Magdalena (Mexico) as a baseline to evaluate PB changes in future studies. This lagoon is in a semi-arid region, lacks river discharges, and channels with vegetation are limited at the north and south zones. SP-PBavg was estimated with chlorophyll-a (chl-a) data obtained in 21 sites on daily MODISAqua imagery (2002—2013; n = 2,418) from a ready-to-use public database. The first step was to establish criteria to use imagery and validate with in situ observations taken in 14 sites (2002—2011; n = 312). MODIS-Aqua overestimated chl-a (mean ± confidence interval95: 5.09 ± 0.97 mg m−3; n = 225); with differences among sites. There were no differences near the inlet lagoon (p <0.05), where the water characteristics are Case-1 while values were significantly higher in the eastern shore and two or three times higher in the mouth of north and south channels, whose water characteristics are similar to Case-2. Multivariate statistical methods allow defining zones into the lagoon and describe their SP-PBavg with both in situ and MODIS Aqua data, but the former’s sample size was small, and the patterns were only delineated. In the inlet surroundings, chl-a peaks from March/April to June/July. On the eastern shore, where MODIS Aqua and in situ data were correlated, despite concentration differences, chla is higher from March/April to October, with peaks in June and September. In the mouth of internal channels, chl-a was higher than other sites and during a longer period; however, the very high MODIS-Aqua values suggest that the satellite also detects organic matter supplied by phytoplankton and other vegetables, which explain the high lagoon’s productivity. These results validate the use of MODIS Aqua imagery to describe the chl-a seasonal patterns in the sea’s vicinity
Źródło:
Oceanologia; 2021, 63, 3; 329-342
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Suitability Study for Tourism Sites in the Southern Coast of West Java
Autorzy:
Ramdhani, Fajri
Liyantono, Liyantono
Pramono, Gatot
Faizal, Ibnu
Powiązania:
https://bibliotekanauki.pl/articles/1031294.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Coastal Tourism
India Ocean
Indonesia
Mapping
West Java
Opis:
Diversity of tourist attraction of the regencies/cities in West Java provides an alternative for travellers. One of the potential activity that can be utilized is coastal tourism. The main objective of this research was to provide a suitable site for tourism sites which can be used as a guide for government, private and planners to decide for the development of coastal tourism. Furthermore, visitors can use this application to get information about the beach resources—primary data in tabular data form and secondary data in vector format and satellite imagery format. ArcGIS was used for spatial analysis of thematic. Simple Additive Weighting method was used in this research to rank the factors and to calculate the weight in each factor. This method was commonly used for resolving spatial decision-making problems. The decision-maker directly assigns a weight of relative importance to each factor. There were 32 beach sites visited in the survey with 20 sites of suitable category and 12 sites belonging to a very suitable category. Pangandaran Regency has the most beach site at ten beaches (32.5%), consisting of 7 sites of suitable category and three sites of very suitable category. They are followed by Sukabumi which has nine sites, consisting of 7 sites of suitable category and two sites of very suitable category. The least number of sites were found in Cianjur regency, which only has three sites, consisting of 1 suitable site and two very suitable sites. According to the result, it can be seen that tourism was more developed in Pangandaran and Sukabumi regency. Besides the infrastructure support, natural conditions also influence the development of coastal tourism in the area.
Źródło:
World News of Natural Sciences; 2021, 34; 127-143
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An assessment the wind potential energy as a generator of electrical energy in the coastal area of southern Iraq
Autorzy:
Hadi, Firas A.
Abdulsada Al-Knani, Basim
Abdulwahab, Rawnak Adel
Powiązania:
https://bibliotekanauki.pl/articles/118705.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
wind energy
Basrah
wind speed analysis
wind potential
Opis:
Renewable energies have the potential to provide relatively clean energy, mostly for domestic energy. Wind power generation is expected to rise in the near future and has grown exponentially over the past decade in many countries. The most important parameter that must be taken into consideration when designing and studying wind power conversion systems is the wind speed. Probability density functions (PDF) such as Weibull is often used in wind speed and wind power analyses. This research presents an assessment of wind power based on the Weibull distribution statistics in the coastal of southern Iraq at Basrah province. Wind speed data for the study site were obtained from NASA at a height of 50 m for the period 1979–2016 with a time interval of 10 min. The data at a height of 50 m were extrapolated using the power law in order to estimate the wind speed at new heights: 30, 70 and 100 m. The different parameters of the Weibull function as well as the daily and monthly wind speeds, mean, variance and potential energy at four altitudes were estimated and analysed using Windographer software. Results indicate that the maximum wind speed at 100 m is 6.4 m·s–1, giving an average power density of 298 W·m–2, which indicates that the location of the study has marginal and useless potential for installing large wind turbines.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2020, 29, 1; 37-53
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Limitation of lignin derivatives as biomarkers of land derived organic matter in the coastal marine sediments
Autorzy:
Pempkowiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/2079190.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
lignin oxidation
biomarker
stable carbon isotope
nonlinear analysis
Gdansk Bay
Southern Baltic Sea
coastal sediment
Opis:
Lignin oxidation products (vanillyl, syringil and cummaryl phenols), and δ13C were measured in a variety of land and marine samples collected in Inner Puck Bay – dominated by marine vascular plants, small river run-off, and shallow bottom, and in Gdańsk Bay – characterized by large river run-off, small marine vascular plants population, and the average depth exceeding euphotic zone. Both study areas are parts of the Gdańsk Basin, Southern Baltic. Typical δ13C values (δ13C = -28‰) and both composition and concentrations of lignin phenols were measured in samples originating from land. Small, yet easily measurable amounts of lignin phenols were found in marine vascular plants biomass (Σ8 = 90 µg/100 mg organic matter). The biomass was characterized by exceptionally high δ13C values (-12‰). No lignin phenols and typical δ13C values (-22‰) were measured in marine phytoplankton biomass. δ13C and both composition and content of lignin phenols in organic matter of surface sediments collected in the study area fall in the range marked by the end members. The proportion of land derived organic matter calculated using lignin phenols, or δ13C in Gdańsk Bay were comparable, while in Puck Bay they differed substantially. It was concluded that a) in areas with substantial bottom coverage with vascular plants the two end members approach, usually employed to establish the contribution of organic matter sources, is insufficient, b) organic matter originating from three sources: riverine, phytoplankton, and vascular plants contribute to sedimentary organic matter in Puck Bay with the respective proportion 30:40:30.
Źródło:
Oceanologia; 2020, 62, 3; 374-386
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Significance of nutrient fluxes via submarine groundwater discharge in the Bay of Puck, Southern Baltic Sea
Autorzy:
Szymczycha, B.
Klostowska, Z.
Lengier, M.
Dzierzbicka-Glowacka, L.
Powiązania:
https://bibliotekanauki.pl/articles/2079294.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
nutrient flux
nitrogen
phosphorus
submarine groundwater discharge
biogeochemistry
coastal zone
Puck Bay
Southern Baltic Sea
Opis:
In this study, we collected submarine groundwater discharge (SGD) and seawater samples at six sites in the Bay of Puck, in the southern Baltic Sea, in order to estimate the nutrient distribution in groundwater affected areas. In addition, we estimated nutrient fluxes via SGD, including both fresh SGD (FSGD) and recirculated seawater SGD (RSGD), to the entire Bay of Puck. Phosphate (PO43−) concentrations varied significantly among study sites and seasons, while both ammonium (NH4+) and nitrates (NO3−) concentrations varied only seasonally. The N:P ratio indicated P limitation in most of the samples. The estimated seasonal and annual loads, via SGD, of both dissolved inorganic nitrogen (DIN; 9303 t yr−1) and PO43− (950 t yr−1), were the most significant source of nutrients to the Bay of Puck, and notably higher than quantified before (FSGD nutrient loads of 50 t yr−1 and 56 t yr−1 for DIN and PO43−, respectively). The SGD fluxes reported here indicate some of the highest rates of sediment-water fluxes reported in the Baltic Sea. These results suggest that SGD (both FSGD and RSGD) should be considered as source of chemical substances to the marine environment.
Źródło:
Oceanologia; 2020, 62, 2; 117-125
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of Klaipeda Port entrance channel dredging on the dynamics of coastal zone, Lithuania
Autorzy:
Zilinskas, G.
Janusaite, R.
Jarmalavicius, D.
Pupienis, D.
Powiązania:
https://bibliotekanauki.pl/articles/2079089.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Klaipeda Port
Southern Baltic
Lithuania
entrance channel
dredging
coastal zone
sediment transport
lithodynamic condition
coastal erosion
Opis:
Dredging entrance channels to ports on open littoral drift seashores often causes major morphological changes to the shoreline. This study aims to assess the impact of dredging the Port of Klaipėda's entrance channel and the construction of the jetties on the coastal zone. Based on an analysis of cartographic material collected between 1835 and 2017, and on field data (bathymetric surveys and cross-shore profile levelling), changes to the coastal zone in the area nearest to the port were evaluated. The dominant longshore sediment transport on the Lithuanian nearshore runs from south to north. Thus, based on established patterns, intensive accretion could have been expected to take place on the southern side of the port jetties and erosion on their northern side. However, in the case of the Port of Klaipėda, in the area nearest to the port on the updrift side of the port jetties, where accretion would have been expected to take place, the nearshore depth increased throughout the 20th century (when the length and configuration of the jetties did not change). The shoreline shifted landward instead of moving further out to sea. The present study shows that the intensive dredging of the entrance channel caused nearshore and shore erosion on the updrift side of the port jetties, even while a sufficient sediment load was being transported by the longshore drift.
Źródło:
Oceanologia; 2020, 62, 4PA; 489-500
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Strategic Environmental Assessment for Southern Coastal of West Java Province, Indonesia
Autorzy:
Rizal, Achmad
Andriani, Yuli
Kusumartono, F. X. Hermawan
Powiązania:
https://bibliotekanauki.pl/articles/1046561.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Environmental
West Java
management
southern coastal
Opis:
Urban development along the southern coastal zone of West Java province involves land-use changes that have a direct impact on coastal ecosystems and services. The southern coastal, a metropolitan area to the south of west java province, is a study case in which the urban coastal occupation is reflected, with the consequent loss of certain services that the ecosystems offer to the population. The research analyses the Environmental Impact Assessment and the impacts of Coastal Zone Management proposals. The methodology used in the research leads to the Drivers-Pressures-State change-Impact-Response (DPSIR) perspective. The approach to the DPSIR has been based on a set of objectives that have brought a strong focus on the long-term preservation of the environment. As such, the planning process has included - and is recommended to include - the following steps: a) Environmental risk assessment; b) Sieve mapping process; c) Formulation of development regulations; d) Local development plans; e) Environmental Impact Assessment, f) Environmental Management Plan. In this sense, management responses should focus on the conservation of these threatened services, with the coordination and cooperation among different public administrations.
Źródło:
World Scientific News; 2019, 137; 188-209
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of atmospheric circulation on water temperature along the Southern Baltic Sea coast
Autorzy:
Girjatowicz, J.P.
Swiatek, M.
Powiązania:
https://bibliotekanauki.pl/articles/48210.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
atmospheric circulation
water temperature
surface temperature
thermal property
air mass
correlation
Baltic Sea
coastal zone
Źródło:
Oceanologia; 2019, 61, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A groundwater flow model for the Wolin Island area, including glaciotectonic deformation
Autorzy:
Hoc, R.
Sadurski, A.
Wiśniowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/94492.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
GIS
groundwater modeling
groundwater exploitation
coastal hydrogeology
southern Baltic Sea coast
modelowanie wód gruntowych
eksploatacja wód podziemnych
hydrogeologia
Morze Bałtyckie
Opis:
During the construction of mathematical models for mapping hydrogeological conditions it is necessary to apply simplifications, both in the geological structure and in hydrogeological parameters used. The present note discusses problems surrounding the mapping of glaciotectonic disturbances that occur in the northern part of Wolin Island (northwest Poland). For this part of the island, a direct outflow of groundwater towards the Baltic Sea basin has been determined on the basis of geophysical survey results. An important feature in the hydrogeological conditions here is the isolation of groundwater from both the Baltic Sea and Szczecin Lagoon by clay with a Cretaceous xenolith. Such a geological structure explains the presence of perched water at considerable heights in zones close to the cliffs, without any significant hydraulic connection with surrounding reservoirs. Hydrogeological conditions of Wolin Island have been modelled using the Visual MODFLOW package v.4.2. In the vertical section, these conditions can be simplified to one aquifer (Pleistocene-Holocene), in which two aquifers can be distinguished. In a large part of the island, these remain in mutual hydraulic contact: layer I – upper, with an unconfined aquifer, and layer II – lower, with a confined aquifer, locally an unconfined one. The schematisation of hydrogeological conditions adopted here has allowed to reproduce present groundwater dynamics in the study area.
Źródło:
Geologos; 2018, 24, 3; 207-216
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
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