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    Wyświetlanie 1-5 z 5
    Tytuł:
    Occurrence probability of maximum sea levels in Polish ports of Baltic Sea coast
    Autorzy:
    Wiśniewski, B.
    Wolski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/258790.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    sea levels
    probability
    Polish Baltic Sea coast
    Opis:
    In this work long-term probability of occurrence of maximum sea levels in some points of Polish Baltic Sea coast, was determined. Use was made of multi-year series of measurement data on maximum yearly sea levels, and their probability distributions were determined. To the analysis Gumbel’s distribution and Pearson distribution of 3rd type as well as quantile methods and the highest credibility method, were applied. Kolmogorov test was used to examine conformity of the theoretical distributions with real random variable distribution. As results from the analysis, the highest sea levels of 1000- year return period can be expected in Polish ports of the west part of the coast , i.e. Kolobrzeg (750, 2 cm , i.e. 2,5 m above the average sea level) and Swinoujscie (723,6 cm) . Lower sea levels of the same return period can be expected in Ustka (720,2 cm), Wladyslawowo (709,7 cm) and Gdansk (716, 7 cm), respectively.
    Źródło:
    Polish Maritime Research; 2009, 3; 62-69
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The role of the day by day beach monitoring in shore transformation
    Autorzy:
    Wodzinowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1187368.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    orthogonal photograms
    shore zone
    Polish Baltic Sea coast
    Opis:
    The new method of a detailed morphodynamic registration of sandy beaches has been presented. The digital oriented photograms have been taken from a stabilised point at least once a day. Occasionally also more often, for example every hour during a storm cycle. The analyses of the photograms are performed in digital mode using special computer software. This digital beach monitoring of the Polish Baltic coast was initiated in summer 2002. The test fields in Polanka Redłowska within Gdynia and Chłapowo near Władysławowo were selected. The beach areas of the length of about 200 m along the shore were registered there. Selected examples of short-term changes of the beach relief were presented. A range of spatiotemporal transformations related to different periods (hours, days, months etc.) was demonstrated.
    Źródło:
    Polish Geological Institute Special Papers; 2004, 11; 77-82
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The relief of the offshore sea bottom at Karwia-Chałupy, Polish Baltic coast
    Autorzy:
    Gajewski, L.
    Gajewski, Ł.
    Rudowski, S.
    Stachowiak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1187372.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    sea bottom relief
    offshore
    hydroacoustic methods
    Polish Baltic Sea coast
    Opis:
    Morphology of sea bottom of the Władysławowo area, from Karwia to Chałupy, has been studied based on the detailed digital bathymetric map prepared in a scale of 1:25 000 with isobaths every 0.25 m. A significant differentiation of the bottom relief has been observed, with the level changes up to 1-3 metres, mostly connected with the occurrence of specific systems of ridges and runnels. They are probably partly relict forms (fluvial and/or coastal?), changed to certain degree during the rapid stage of the Litorina transgression, and in partly forms created by the recent waves. Several types of the sea bottom surface, differing in pattern of morphological forms, have been recognised within inshore, near shore, and open sea (above 16 m depths) areas. The full knowledge of the origin and development of these relief forms requires further specialised research, currently carried out. Nonetheless, the already obtained picture of the sea bottom relief indicates an intensified abrasion of the offshore sea bottom, and an intensive, irreversible sweeping out of the sediments from the shore to the open sea, most probably by rip currents, at a distance up to several kilometres from the shore. It is in accordance with the results of a former large-scale (1:500) study of the sea bottom at the test field at Chłapowo, performed with the use of an integrated system of non-invasive and direct methods.
    Źródło:
    Polish Geological Institute Special Papers; 2004, 11; 91-94
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polish coastal dunes : affecting factors and morphology
    Autorzy:
    Łabuz, T. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/294657.pdf
    Data publikacji:
    2013
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    dune coast
    dune types
    dune dynamics
    factors impact
    Polish Baltic Sea coast
    Opis:
    This article describe Polish coastal dunes and the factors influencing their development. The Polish coast is 500 km long and mainly exposed for a northerly direction. It is a part of the southern Baltic shore. The Polish coast is composed of mostly loose sand, till and peat. Because the coast hardiness is so weak, it is under constant threat from storm surges as well as human impact caused by rapid infrastructure development and the coastal protection measures put in place to try and protect it. These protection measures destabilize the natural coast dynamics and rebuilding process. Almost 85% of the shoreline is built up by sandy aeolian deposits and covered by different dune types. Among them are typical foredunes or inland dunes in eroded coastal areas. The second type of dune coasts are built up by land dunes, which appear on the coast as a result of sea erosion causing land regression. Sometimes dunes can be found over moraine deposits or in front of moraine old cliffs. Nowadays these habitats are heavily threatened by storm surges and human activity. In some places there is an accumulation that leads to new ridge developments. This article describes these issues with an emphasis on the present dynamics of Poland’s coastal areas.
    Źródło:
    Landform Analysis; 2013, 22; 33-59
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stratygrafia i litologia mineralnych osadów występujących w klifach środkowej części polskiego wybrzeża Bałtyku
    Stratigraphy and lithology of minerogenic deposits in coastal cliffs, middle section of the Polish Baltic coast
    Autorzy:
    Olszak, I. J.
    Florek, W.
    Seul, C.
    Majewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/294787.pdf
    Data publikacji:
    2008
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    klify
    petrografia
    stratygrafia
    wiek osadów
    polskie wybrzeże Bałtyku
    cliffs
    petrography
    stratigraphy
    age of sediments
    Polish Baltic Sea coast
    Opis:
    Korzystając z dawnych i nowych opracowań geologicznych oraz własnych danych petrograficznych i stratygraficznych, autorzy przedstawili swoje poglądy na temat litologii i wieku osadów mineralnych budujących klify pomiędzy Jarosławcem a Dębiną. Najnowsze dane odbiegają od zakorzenionych w literaturze poglądów.
    New views about lithology and age of deposits building coastal cliffs between Jarosławiec and Dębina, diverging from the models rooted in the literature, are presented by the authors. The revision is based on critical re-assessment of older and more recent geological reports and new results of petrological and stratigraphic research. The oldest glacial deposit exposed in cliff sections is grey till. Petrological data and TL dating results indicate clearly that it was deposited during the Świecie stadial. At Jarosławiec site, the till is enriched in Tertiary organic material and divided into two layers based on colour. However, petrology and TL age determinations do not differ between these layers. In the cliffs investigated, as well as in the other coastal cliffs in the eastern Pomorze region, older tills do not occur. Likewise, tills from the main stage of the last glaciation have not been recognized. The Świecie stadial till is overlain by outwash, glacilimnic and limnic deposits, the latter dated for the Grudziądz interstadial. Almost everywhere the near-surface layer is built of late Holocene aeolian sand with palaeosols.
    Źródło:
    Landform Analysis; 2008, 7; 113-118
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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