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    Tytuł:
    Biogenic substances in the waters of the gulf of Gdańsk in the IIIrd decade of july 1997, after passage of flood wave
    Autorzy:
    Bolałek, J.
    Aftanas, B.
    Lubomirski, K.
    Karp, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1920397.pdf
    Data publikacji:
    1998
    Wydawca:
    Instytut Morski w Gdańsku
    Tematy:
    salinity
    Gulf of Gdańsk
    Opis:
    The paper discusses the distribution of salinity and of dissolved non-organic salts of nitrogen and phosphorus (nitrates, nitrites, ammonium, phos;hates) in the surface waters of the Gulf of Gdańsk after the flood wave passed in the IIIrd decade of July 1997. It was found, by comparing with data obtained in the past years, that the summer flood wave did not cause large changes in the amounts of the investigated biogenic substances in the waters of the region.
    Źródło:
    Biuletyn Instytutu Morskiego w Gdańsku; 1998, 25, 1; 77-83
    1230-7424
    2450-5536
    Pojawia się w:
    Biuletyn Instytutu Morskiego w Gdańsku
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A system of protection and restoration of the Gulf of Gdańsk
    Autorzy:
    Kruk-Dowgiałło, L.
    Dubrawski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1920399.pdf
    Data publikacji:
    1998
    Wydawca:
    Instytut Morski w Gdańsku
    Tematy:
    protection
    restoration
    Gulf of Gdańsk
    Opis:
    Since many years, in the Gulf of Gdańsk various transformations proceeding under the influence of trophic and pollution-induced factors are observed. Changes of especially negative character were found in the biocenosis of the Puck Bay, in which many plant and animal sets became degraded or even devastated. Besides, at present the public feels endangered by bacterial pollution of the coastal zone and increasingly intensive phytoplankton blooming. This limits the possibilities of using these water areas for the needs of tourism and recreation. It was decided that comprehensive activities should be started, both on land and in the Bay itself, in order to limitlremediate the effects of eutrophication of this water area. In 1994 and 1995 monitoring and experimental investigations were carried out. In effect a system for protecting and restoring the biocenosis was developed, and the main assumptions for this system are presented in this paper.
    Źródło:
    Biuletyn Instytutu Morskiego w Gdańsku; 1998, 25, 1; 45-67
    1230-7424
    2450-5536
    Pojawia się w:
    Biuletyn Instytutu Morskiego w Gdańsku
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrochemical flood flow of the Vistula -august 2001
    Autorzy:
    Dubrawski, R.
    Afanas, B.
    Dembska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/972857.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Morski w Gdańsku
    Tematy:
    flood flow
    Gulf of Gdańsk
    Vistula
    Opis:
    Intense rain in the south em part of the Vistula 's watershed in Ju(v 2001 resulted in floods in many places and in flood water flows on the Vistula and its tributaries. The culmination of the flood reached the Gulf of Gdańsk in the night of 5th August 2001. In the period 4th to 6th August, 10 samples of water were taken, and d1e content of biogenic substances and of other components in these samples was determined. Basing on water flow measurements and on the content of the investigated components, the loads were calculated and compared with mean multi-annual loads for the pen·od 1984- 1998. It was found that the mean biogen load, related to water flow, was exceeded many times. Also the relationships between the analysed components, water flow and variability during the period of investigations were detennined. Obtained results show that there may be a very significant influence of biogens on the condition of the environment and on the dynamics of biocenotic processes of the Gulf of Gdańsk in the period before and after the propagation of flood waters of the Vistula.
    Źródło:
    Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 119-130
    1230-7424
    2450-5536
    Pojawia się w:
    Biuletyn Instytutu Morskiego w Gdańsku
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrochemical flood flow of the Vistula -august 2001
    Autorzy:
    Dubrawski, R.
    Afanas, B.
    Dembska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1920611.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Morski w Gdańsku
    Tematy:
    flood flow
    Gulf of Gdańsk
    Vistula
    Opis:
    Intense rain in the south em part of the Vistula 's watershed in Ju(v 2001 resulted in floods in many places and in flood water flows on the Vistula and its tributaries. The culmination of the flood reached the Gulf of Gdańsk in the night of 5th August 2001. In the period 4th to 6th August, 10 samples of water were taken, and d1e content of biogenic substances and of other components in these samples was determined. Basing on water flow measurements and on the content of the investigated components, the loads were calculated and compared with mean multi-annual loads for the pen·od 1984- 1998. It was found that the mean biogen load, related to water flow, was exceeded many times. Also the relationships between the analysed components, water flow and variability during the period of investigations were detennined. Obtained results show that there may be a very significant influence of biogens on the condition of the environment and on the dynamics of biocenotic processes of the Gulf of Gdańsk in the period before and after the propagation of flood waters of the Vistula.
    Źródło:
    Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 119-130
    1230-7424
    2450-5536
    Pojawia się w:
    Biuletyn Instytutu Morskiego w Gdańsku
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nonlinear acoustical methods in the detection of gassy sediments in the gulf of Gdańsk
    Autorzy:
    Tęgowski, J.
    Jakacki, J.
    Klusek, Z.
    Rudowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/331810.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Akustyczne
    Tematy:
    nonlinear acoustical methods
    gulf of Gdańsk
    acoustical signals
    gas
    Opis:
    The application of nonlinear backscattering of acoustical signals in detection of gas bubbles in subsurface layer of sediment of the Gulf of Gdansk is presented. Gas bubbles concentration was estimated assuming that nonlinear scattering in soft sediments is similar as in water. Summary, difference and double harmonics generated only by gas bubbles were recorded and used for bubble density estimation. Comparisons of the concentrations received from different nonlinear components show generally agreement in calculated bubble density distributions, although values of densities acquired from almost identical volumes in a single transmission differ.
    Źródło:
    Hydroacoustics; 2003, 6; 151-158
    1642-1817
    Pojawia się w:
    Hydroacoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ship as a source of the sea pollution with oil
    Autorzy:
    Stelmaszewski, A.
    Otremba, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/247988.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    maritime transport
    seawater
    petroleum
    environmental protection
    Gulf of Gdansk
    Opis:
    The subject of marine vessel as a source of the sea pollution was taken because of very adverse impact of petroleum pollutants on the natural environment. Oil pollutions concern especially marine environment. However, petroleum inflows to the sea from many different sources, exploitation of the fleet are one of the significant causes of oil presence in the marine environment. MARPOL Convention requires the states parties thereto to monitor the state of contamination [3] and this is a second reason of taking this subject. During the past years, several tests of petroleum content in the Gulf of Gdansk were made by the Physics Department of Gdynia Maritime University. In total 115 samples of water were collected and analyzed during the period from 2004 to 2009 year in the Gulf of Gdansk, which is an area of intense ships traffic because of two great complexes of harbours located in Gdansk and in Gdynia. These tests were carried out with the help of Institute of Oceanology Polish Academy of Sciences during cruises of the r.v. “Oceania”. Petroleum concentration in seawater was determined by means of improved fluorescence method. Oil in water concentration ranged from value below of the detection limit, that is 10–9 (less than 1 ppb), up to 3.5ź10–7 (350 ppb). Average concentration of oil was 4.3ź10–8 (43 ppb). Obtained results confirmed that Vistula River could be a source of petroleum pollution of the Gulf of Gdansk. Apart from this, vessels are the significant sources of oil in the seawater too. The most polluted places were founded in the area where ships crossed the Gulf of Gdansk.
    Źródło:
    Journal of KONES; 2012, 19, 1; 385-389
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Port of Gdańsk and Port of Gdynia’s exposure to threats resulting from storm extremes
    Autorzy:
    Cieślikiewicz, W.
    Dudkowska, A.
    Gic-Grusza, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069114.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    critical infrastructure
    Port of Gdynia
    Port of Gdańsk
    storm extremes
    Gulf of Gdańsk hydrodynamics
    Opis:
    This study is intended to make a first estimate of the exposure of the two Polish largest ports – Gdańsk and Gdynia, localized in the Gulf of Gdańsk – to threats from storm extremes. These ports are elements of the Polish critical infrastructure and presented analysis is one of the tasks related to critical infrastructure protection. Hypothetical extreme meteorological conditions have been defined based on 138-year NOAA data and assumed wave fields for those conditions have been generated. Using HIPOCAS project database the 21 extreme historical storms over the period 1958–2001 were selected to simulate realistic conditions in the vicinity of the ports. The highest significant wave height was found to be nearly 4 m in the vicinity of Port of Gdańsk and nearly 2 m in the vicinity of Port of Gdynia. A future intensification of these wave conditions should be considered due to the climate change and sea level rise.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2016, 7, 1; 29--36
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Symulacja i predykcja erozji wybrzeża wybranych odcinków Zatoki Gdańskiej w modelu SWAN
    Simulation and forecast of coastal erosion in the Gulf of Gdańsk in the SWAN model
    Autorzy:
    Sapiega, Patryk
    Powiązania:
    https://bibliotekanauki.pl/articles/2076147.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    erozja
    Zatoka Gdańska
    model numeryczny SWAN
    erosion
    Gulf of Gdansk
    numerical model SWAN
    Opis:
    The increasing climatic changes and their possible negative impact on the marine and coastal environment prompt the search for alternative estimating and predicting dangerous phenomena. Hydrodynamic modeling is an underappreciated model which enables forecasting waves and their effects. In the presented work, the author assessed the influence of the dynamics of undulations on the morphological changes of the Gulf of Gdańsk coast in three transects representing different geomorphological zones of the shore. Using the SWAN wave model, simulations were carried out reflecting the hydrodynamic conditions of the most giant storms in 2015-2020, calculating the amount of eroded sediment material in bottom and suspension transport. In addition, based on the significant wave height data from ERA5-ECMWFfrom 1981-2020 and the assumed scenarios, a prediction was made of a potential increase in coastal erosion caused by the rise in the mean value of the significant wave height. Taking into account the implemented and set atmospheric, hydrodynamic, and sedimentological conditions, it has been estimated that the highest erosion characterizes the cliff area in Gdynia-Orłowo (transect B), where the average amount of erosion of the bottom sediment is 0.5 kg/m/s, of the sediment in suspension - 20 kg/m/s, and the average speed of the transported sediment exceeds 2 m s-1. The lowest dynamics of changes is characteristic for the western part of the Vistula Spit (transect C), where the average velocity of the transported sediment is 0.28 m s-1, and the average size of the eroded bottom sediment is 0.014kg/m/sand 0.15kg in suspension/m/s. In the analyzed storm events, at all locations, the greatest erosion was generated by the wave conditions from January 2019. The maximum wave height in the open sea was record-breaking, over 13 meters. Depending on the analyzed area and its geomorphology and exposure to storm waves, the predicted amount of erosion varied significantly. For Scenario A, assuming a 15% increase in the average frequency and height of the significant wave, the forecast of coastal transport is 138-161 thousand m3/year, for Scenario B (30%) 150-175.5 thousand m3/year, and for Scenario C (50%) 180-210 thousand m3/year. In addition, the aim of the work is a cause-and-effect analysis of wave activity on the coast of the Gulf of Gdańsk and the assessment of its impact on quantitative changes in the sediment transport balance.
    Źródło:
    Przegląd Geologiczny; 2021, 69, 11; 721--727
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coastal zone, key area for adaptation to sea level rise. The Gulf of Gdansk case
    Autorzy:
    Zielinski, Tymon
    Piwowarczyk, Joanna
    Koroza, Aleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/28411662.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    adaptation to climate change
    coastal zone
    developmental strategy
    Gulf of Gdansk
    sea level rise
    Opis:
    Climate change and its consequences, including rising ocean temperature and sea level rise are well scientifically documented. The changes are especially severe for coastal communities, which are estimated to have reached c. 50% of the world’s population. Using an example of the Gulf of Gdansk region, which is of European importance, due to the presence of two major Baltic ports and global tourism, we explore, how sea related threats may affect the region and we analyse how the three major cities are prepared to these threats. The four city developmental strategies and an additional document, an “umbrella strategy” focusing on climate change threats do not consider sea level rise and more frequent storm surges as threats. The sea level rise is briefly discussed in the fourth document. The adaptation plan, an appendix to the document, mentions sea level rise, but the discussion of the problem is indirect and involves some examples of adaptation actions in loosely similar environmental conditions. The adaptation plan, in fact includes a list of possible threats, rather than a detailed discussion of the suggestions of the measures to be undertaken. For comparison, we present a multilevel approach, which is effectively run in the Port of Rotterdam and argue that such approach should be undertaken in the studied region. We conclude that despite years of education on climate change, the problem is still not recognised and is underrepresented in practical measures of the studied region. We also provide hints on how to overcome this situation.
    Źródło:
    Journal of Water and Land Development; 2023, 59; 208--215
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Positioning Functionality in ASG EUPOS for Hydrography and Off-Shore Navigation
    Autorzy:
    Rogowski, J.
    Specht, C.
    Weintrit, A.
    Leszczyński, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/116967.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite Systems (GNSS)
    geodesy
    ASG-EUPOS
    Gulf of Gdansk
    hydrography
    offshore navigation
    Positioning Functionality
    Opis:
    The paper discusses the ASG EUPOS services. There is presented an assessment of the possibility of using this system selected sites in hydrography and off-shore navigation tasks. Presented and analyzed the experiments were carried out in the port of Gdynia and on the Gulf of Gda?sk. The results obtaining in the work confirm the possibility of the position accuracy guaranteed by ASG EUPOS services. The obtained accuracy greatly exceeds the needs and requirements of coastal navigation and underwater mining and exploration of sea bottom.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 2; 221-227
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Systemy hydrofitowe do oczyszczania spływów powierzchniowych w rejonie Zatoki Gdańskiej
    Constructed wetland systems for serial runoff treatment in the gulf of Gdansk Region
    Autorzy:
    Obarska-Pempkowiak, H.
    Gajewska, M.
    Wojciechowska, E.
    Stosik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1819603.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    system hydrofitowy
    Zatoka Gdańska
    jakość wód
    związki azotu
    hydrofitowy system
    Gulf of Gdansk
    water quality
    nitrogen compounds
    Opis:
    W artykule przywołano przykłady udanych wdrożeń obiektów hydrofitowych oczyszczania spływów obszarowych na terenie aglomeracji trójmiejskiej. Zespół obiektów hydrofitowych wybudowany w ZOO w Oliwie wykazał szczególnie wysoką skuteczność usuwania związków azotu. Obiekt hydrofitowy na Potoku Swelina spowodował znaczną poprawę jakości wód Potoku, a co za tym idzie i czystości kąpieliska w rejonie Kamiennego Potoku w Sopocie. Podjęte działania przyczyniły się do znacznej poprawy jakości wód Zatoki Gdańskiej w rejonach kąpielisk w Jelitkowie i Kamiennym Potoku.
    In the article the examples of successful application of CW systems for treatment of aerial runoff at the Threecity agglomeration have been presented. The CW system at the ZOO in Oliwa was particularly effective in nitrogen removal. The CW system at Swelina Stream contributed to the significant improvement of the stream waters quality, resulting in the improvement of the quality of the bathing place located near its outflow to the Gulf of Gdańsk.
    Źródło:
    Rocznik Ochrona Środowiska; 2011, Tom 13; 173-185
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Waves, Currents and Seabed Level Change in the Port of Gdynia During Extreme Events
    Autorzy:
    Sapiega, P.
    Zalewska, T.
    Wochna, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/24201476.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    gulf of Gdansk
    sea wave
    hazard analysis
    Harbour areas
    transport from seabed
    hydrodynamic effects
    surface current
    hydrodynamic model
    Opis:
    The primary purpose of the paper is to identify port areas most exposed to extreme hydrodynamic conditions (waves, sea currents, seabed level change). The results of modelling using SWAN wave model, MIKE 3D model, and reanalysis and measurement data were used in paper. Swell may exceed 0.8 m for winds exceeding 15 m s-1 from the west and south. During extreme conditions, sea currents can reach 0.4 ms-1 in the outer part of the bay adjacent to the port. Port basins do not show changes in the thickness of the seabed for the given maximum values of bottom currents. The most extensive deposition of the seabed and shore sediments (up to 0.04 m) is found on the Gdynia-Oksywie beach adjacent to the port and the approach fairway at the offshore currents. The outer area of the main breakwater is the most exposed to erosive activity (-0.012 m).
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 515--521
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morfodynamika sztucznie zasilonej plaży Bałtyku pomiędzy Gdańskiem a Sopotem
    Morphodynamics of the replenished Baltic beach between Gdańsk and Sopot
    Autorzy:
    Jobska, Aleksandra
    Rucińska, Maria
    Powiązania:
    https://bibliotekanauki.pl/articles/2076206.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    morfodynamika
    sztucznie zasilona plaża
    plaża
    osad na plaży
    Zatoka Gdańska
    morphodynamics
    beach replenishment
    beach
    beach sediment
    Gulf of Gdańsk
    Opis:
    The research area is located on the coast of the Baltic Sea, along the Gulf of Gdańsk. It includes a beach where sand replenishment was carried out in 2019. The aim of the study was to investigate the morphodynamics of beach deposits in replenishing and non-replenishing areas during one year. No environmental dynamic conditions sufficient to alter significantly the beach morphology and sediment characteristics occurred during the study period, November 2019 to August 2020. One storm event was recorded, but did not significantly affect the beachform. The transverse beach profiles, which were artificially recharged in June 2019, were lowered by 0.6 to 1.2 m. The greatest changes were caused by the erosive activity of the waters of the Jelitkowski Stream.
    Źródło:
    Przegląd Geologiczny; 2021, 69, 7; 443--447
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cementacja węglanowa osadów piaszczystych klifu w Gdyni-Orłowie
    Carbonate cementation of sandy sediments on the cliff in Gdynia-Orłowo
    Autorzy:
    Ciborowski, T.
    Jankowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074554.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    cementacja węglanowa
    osady piaszczyste
    klif w Gdyni-Orłowie
    Zatoka Gdańska
    carbonate cementation
    sandy sediments
    Orłowo Cliff
    Gulf of Gdansk
    Opis:
    Carbonate cementation of sandy sediments is most common in tropical and subtropical climate, and quite rare in temperate climate. About 20 sites where carbonate cemented sandstones occur are known throughout the Polish Lowlands. A new outcrop of carbonate cemented sandstone was found near Gdynia-Orłowo (coast of the Gulf of Gdańsk). Field studies and microscopic analyses [optical microscopy and SEM] let to recognise the pattern of cementation of sandy sediments. Origin of the sandstones is connected with infiltration of rain water into glacial till (partially cracked). This till is the source of calcium carbonate transported by water into underlying fluvioglacial sands. Because of different sediments porosity and resulting degassing of CO2, CaCO3 precipitated. Additionally, elevated temperature and evaporation of water may also create favorable condition for precipitation. The process of cementation is related to the exposition of fluvioglacial sands layer caused by cliff abrasion (about 1 m per year). The best geochemical conditions for precipitation of CaCO3 are in the zone of contact with atmosphere, so this cementation seems to be recent. Carbonate cemented sandstones formed below the glacial till fall down and may be found in the colluvium of the cliff slope.
    Źródło:
    Przegląd Geologiczny; 2007, 55, 2; 140-145
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bottom structure of selected basins in The Port of Gdynia
    Budowa dna wybranych basenów Portu Gdynia
    Autorzy:
    Dworniczak, J.
    Wróblewski, R.
    Rudowski, S.
    Sitkiewicz, P.
    Bieszk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/111425.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Morski w Gdańsku
    Tematy:
    SES profiling
    vibrocorer
    bottom sediments
    Gulf of Gdańsk
    Polska
    profilowanie sejsmiczne SES
    sonda wibracyjna
    osady denne
    Zatoka Gdańska
    Polska
    Opis:
    Bottom structure of the basins in the Port of Gdynia, Poland, was analysed based on the archival materials of the Department of Operational Oceanography of Marine Institute in Gdańsk, particularly seismic profiles and macroscopic descriptions of sediment cores. Seismic profiling and core collection were performed in selected basins and within the fairway. The rich source material was used to draw a detailed bathymetric map of the bottom of the basins, a map of surface sediments, and a synthetic geological cross-section. A considerable variation in bottom depth within the analysed basins was observed. Bedrock sediments comprised Miocene sands and silts covered with glacial and fluvioglacial sediments, which reach the surface of the water, especially in the central part of the fairway. Within the eastern part of the fairway, fluvioglacial sediments are covered with marine sediments related to the Littorina transgression. Within the inner port and in the outport, a series of glacial and fluvioglacial sediments are covered with a thick (about 10 m) series of glaciolacustrine and lacustrine sediments, which in turn is covered with fluvial and deltaic sediments. The surface of the bottom is composed of contemporary, anthropogenically modified sediments. The map of surface sediments of the bottom corresponds to the geological map on the horizon of about 10 meters beneath land surface.
    W ramach opracowania budowy dna basenów portowych Portu Gdynia wykorzystano materiały archiwalne Zakładu Oceanografii Operacyjnej Instytutu Morskiego w Gdańsku, tj. profile sejsmiczne oraz opisy makroskopowe rdzeni osadów. Profilowanie sejsmiczne oraz pobór rdzeni wykonano w wybranych basenach oraz w obrębie podejściowego toru wodnego. Bogaty materiał źródłowy posłużył do opracowania szczegółowej mapy batymetrycznej dna basenów, mapy osadów powierzchniowych oraz syntetycznego przekroju geologicznego. Stwierdzono znaczne zróżnicowanie głębokości dna w obrębie analizowanych akwenów. Osady podłoża to piaski i muły mioceńskie, na których zalegają osady lodowcowe oraz wodnolodowcowe wychodzące – zwłaszcza w centralnej części podejściowego toru wodnego – na powierzchnię. W obrębie wschodniej części toru wodnego na osadach wodnolodowcowych zalegają osady morskie związane z transgresją litorynową. Na obszarze portu wewnętrznego oraz w awanporcie seria osadów lodowcowych i wodnolodowcowych przykryta jest miąższą (około 10 m) serią osadów jeziorno-lodowcowych i jeziornych, na których zalegają osady o charakterze rzecznym i deltowym Powierzchnię dna budują osady współczesne, zmienione antropogenicznie. Mapa osadów powierzchniowych dna odpowiada mapie geologicznej na poziomie około -10 m.
    Źródło:
    Biuletyn Instytutu Morskiego w Gdańsku; 2017, 32, 1; 1-7
    1230-7424
    2450-5536
    Pojawia się w:
    Biuletyn Instytutu Morskiego w Gdańsku
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unravelling the complex nature of the Upper Weichselian till section at Gdynia Babie Doły, northern Poland
    Autorzy:
    Woźniak, P. P.
    Czubla, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/94576.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    subglacial processes
    till fabric
    till petrography
    Gulf of Gdańsk
    Pleistocene
    Fennoscandian Ice Sheet
    procesy podlodowcowe
    Zatoka Gdańska
    Pleistocen
    pokrywa lodowa
    Opis:
    The complexity of glacial sequences may increase when these formed underneath ice sheets despite subsequent changes in their extent that are accompanied by alterations in the direction of the ice flow. Our aim was to determine whether or not changes in ice sheet dynamics during the Late Weichselian are also recorded in sediments formed north of the area of its fluctuating margin (i.e., where the ice sheet prevailed independent of such fluctuations). It is shown that in these areas such a record could have occurred, as documented by results of till studies at Babie Doły. The examination was carried out using several analyses: lithofacies properties of sediments, petrographic till composition (fine gravel fraction, indicator erratics), till matrix CaCO3 content, till fabric, as well as orientation of striae on the top surfaces of large clasts. In parallel, datings of sub- and supra-till sediments using the TL method were carried out. The basal till at Babie Doły represents almost the entire Upper Weichselian, but it can be divided into subunits whose features indicate different ice flow directions and debris supply. The lower subunit developed as a result of the palaeo-ice stream along the main axis of the Baltic Sea (from the north), expanding to areas adjacent to the depression of the Gulf of Gdańsk. The upper subunit developed when the influence of the palaeo-ice stream in the study area decreased, the main role having been taken over by the ice flowing from the northwest. The till analysed also shows considerable lateral variation, indicative of the mosaic nature of subglacial sedimentation. We consider the diversity of permeability of deposits over which the ice sheet extended to be the prime factor that determined such a situation.
    Źródło:
    Geologos; 2016, 22, 1; 15-32
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recent development of the Vistula River outlet
    Autorzy:
    Graniczny, M.
    Janicki, T.
    Kowalski, Z.
    Koszka-Maroń, D.
    Jegliński, W.
    Uścinowicz, Sz.
    Zachowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1187377.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    delta front
    recent delta development
    Vistula river
    southern Baltic Sea
    Gulf of Gdansk
    digital terrain model (DTM)
    remote sensing
    GPS surveys
    Opis:
    The Vistula River mouth is an unique example of river’s outlet observed since the birth in 1895 to present day. There is a large documentation of morphological changes in the outlet area. In 1895, a 7 kilometres canal was dug into which the waters of the Vistula were let in. Since 1895, most of the water discharge and all sediment transport reach the Gulf through artificial channel c. 20 km east of Gdańsk. During the last 100 years, the shoreline has been shifted seaward c. 1.5 km on the eastern side, to c 2.5 km on the western side of the Vistula mouth. Isobath of 5 m moved seaward c. 3 km and isobaths of 10 and 15 m shifted 2.5 km. During the years 1895-1997, land area accreted to 3,019,000 m2. The volume of the river-outlet cone in the year 2000 was 133.39 mln m3 and the average rate of sediment growth over the 105 years was c. 1.27 mln m3 per year.
    Źródło:
    Polish Geological Institute Special Papers; 2004, 11; 103--107
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Automatic Identification System on Safety of Navigation at Sea
    Autorzy:
    Stupak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/117256.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    marine navigation
    Automatic Identification System (AIS)
    safety at sea
    Safety of Navigation
    Gulf of Gdansk
    vessel traffic service (VTS)
    Radar Target
    Radar Tracking
    Opis:
    Detection of small crafts/targets, in particular, sailing yachts with the ship's radar is not always possible. Radar reflectors are used to improve their detection. The AIS (Automatic Identification System) transmits position, motion vector and identification signals of a vessel to other ships and VTS (Vessel Traffic Services) centers . This system significantly increases the possibility to detect small crafts. The paper presents results of comparative study of using information from the Automatic Identification System and from radar to determine the accuracy of tracking the position and motion vector of ships in the Gulf of Gdansk. Possibilities and limitations of the AIS are also presented.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 337-341
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ships’ routes to Polish Ports of the Gulf of Gdańsk
    Autorzy:
    Wawruch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063976.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Safety at Sea
    Ships' Routes
    Gulf of Gdansk
    Baltic Ship Monitoring System
    Baltic Sea Hydrographic Commission
    Polish Maritime Administration
    Automatic Identification System
    Polish Ports
    Opis:
    The paper discusses ships’ routes to Polish ports in the Gulf of Gdańsk determined on the basis of data obtained from the Baltic Ship Monitoring System by means of AIS coast stations and defined by the Baltic Sea Hydrographic Commission (BSHC). The measures to regulate maritime traffic implemented by the Polish maritime administration in order to reduce the identified risk of groundings and ship collisions are presented, as well as the author's opinion on their effectiveness.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 583--590
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ponto-Caspian gammarids – new species in the Gulf of Gdańsk (Southern Baltic Sea)
    Ponto-kaspijskie kiełże – nowe gatunki w Zatoce Gdańskiej
    Autorzy:
    Dobrzycka-Krahel, A.
    Kendzierska, H.
    Szaniawska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/271602.pdf
    Data publikacji:
    2013
    Wydawca:
    Górnośląska Wyższa Szkoła Pedagogiczna im. Kardynała Augusta Hlonda
    Tematy:
    non-indigenous species
    Ponto-Caspian gammarids
    Pontogammarus robustoides
    Dikerogammarus haemobaphes
    Dikerogammarus villosus
    Obesogammarus crassus
    Gulf of Gdansk
    Baltic Sea
    gatunki nierodzime
    ponto-kaspijskie kiełże
    Zatoka Gdańska
    Bałtyk
    Opis:
    Non-indigenous gammarid species: Pontogammarus robustoides (G.O.Sars, 1894), Obesogammarus crassus (G.O. Sars, 1894), Dikerogammarus haemobaphes (Eichwald, 1841) and Dikerogammarus villosus (Sowinsky, 1894) are present in the Gulf of Gdańsk (southern Baltic Sea). These species reached the Gulf of Gdańsk by 2010 near the point where the River Vistula flows into the Baltic Sea, and become constituents of the amphipods in shallow bottom. All the gammarid species found are of Ponto-Caspian origin. They have been able to move across Europe along rivers and canals, and inhabit reservoirs and drainage systems in the vicinity of such waterways. D. villosus is the latest gammarid species to have colonized Poland. The floods that afflicted Poland in May and June 2010 could have had a significant influence, intensifying as they did the inflow of water from the Vistula into the Gulf of Gdańsk. This could have accelerated the arrival of individuals of these species. The water salinity at the sampling stations was 5.8 – 6.1 PSU. The possible invasion of non-native gammarids may have important consequences for the benthic fauna communities in the Gulf of Gdańsk.
    Nierodzime gatunki kiełży: Pontogammarus robustoides (G.O.Sars, 1894), Obesogammarus crassus (G.O. Sars, 1894), Dikerogammarus haemobaphes (Eichwald, 1841) and Dikerogammarus villosus (Sowinsky, 1894) obecne są już w Zatoce Gdańskiej (Bałtyk Południowy). Gatunki te pojawiły się w Zatoce Gdańskiej w 2010 roku, niedaleko ujścia Wisły do Bałtyku i stały się składnikiem obunogów płytkiego dna. Wszystkie wymienione gatunki są pochodzenia ponto-kaspisjkiego. Przedostały się do Europy rzekami i kanałami, i zasiedlają zlewnie tych rzek. D. villosus jest najnowszym przybyszem, który skolonizował Polskę. Najprawdopodobniej powódź, która dotknęła Polskę w maju i czerwcu 2010 roku zintensyfikowała napływ wód Wisły do Zatoki Gdańskiej. Przyśpieszyło to przedostanie się osobników wymienionych gatunków do Zatoki Gdańskiej. Zasolenie wody na stacjach zbioru materiału wynosiło od 5.8 do 6.1 PSU. Inwazja nierodzimych gatunków kiełży może znacznie wpłynąć na zespoły bentosowe Zatoki Gdańskiej.
    Źródło:
    Journal of Ecology and Health; 2013, R. 17, nr 3, 3; 110-114
    2082-2634
    Pojawia się w:
    Journal of Ecology and Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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