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Wyszukujesz frazę "Szmytkiewicz, P." wg kryterium: Autor

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    Tytuł:
    Some characteristic wave energy dissipation patterns along the Polish coast
    Autorzy:
    Rozynski, G.
    Szmytkiewicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/49190.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    energy dissipation
    wave energy
    statistical parameter
    empirical mode decomposition
    singular spectrum analysis
    Polish coast
    Źródło:
    Oceanologia; 2018, 60, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Megascale rhythmic shoreline forms on a beach with multiple bars
    Autorzy:
    Pruszak, Z.
    Rozynski, G.
    Szmytkiewicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/47943.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    bar
    beach
    shoreline form
    shoreline configuration
    wavelength
    Baltic Sea
    rhythmic form
    nearshore zone
    Baltic coast
    statistical analysis
    multibar profile
    Opis:
    The study, carried out in 2003 and 2006 at the Lubiatowo Coastal Research Station (Poland), located on the non-tidal southern Baltic coast (tidal range < 0.06 m), focused on larger rhythmic forms (mega-cusps) with wavelengths in the interval 500 m > Lc > 20 m. Statistical analyses of detailed shoreline configurations were performed mostly with the Discrete Wavelet Transform method (DWT). The beach is composed of fine sand with grain diameter D50 ≈ 0.22 mm, which produces 4 longshore sandbars and a gently sloping seabed with β = 0.015. The analysis confirms the key role of bars in hydro- and morphodynamic surf zone processes. The hypothesis was therefore set up that, in a surf zone with multiple bars, the bars and mega-scale shoreline rhythmic forms form one integrated physical system; experimental evidence to substantiate this hypothesis was also sought. In such a system not only do self-regulation processes include swash zone phenomena, they also incorporate processes in offshore surf zone locations. The longshore dimensions of large cusps are thus related to the distances between periodically active large bed forms (bars). The spatial dimension of bar system activity (number of active bars) depends, at a given time scale, on the associated hydrodynamic conditions. It was assumed that such a time scale could include either the development and duration of a storm, or a period of stable, yet distinct waves, capable of remodelling the beach configuration. The indentation to wavelength ratio of mega-cusps for the studied non-tidal dissipative environment may be one order of magnitude greater than for mesotidal, reflective beaches.
    Źródło:
    Oceanologia; 2008, 50, 2; 183-203
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Design Wave Heights Determined on the Basis of Long- and Short-term Measurement Data
    Autorzy:
    Szmytkiewicz, M.
    Szmytkiewicz, P.
    Marcinkowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/241214.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    wave measurements
    reconstruction of waves in the Baltic
    Weibull distribution
    Gumbel distribution
    Opis:
    The objective of this study is to determine differences between design wave heights determined on the basis of short- and long-term wave trains. Wave parameters measured over a period of 7.47 years in the vicinity of Coastal Research Station Lubiatowo were used as short-term wave data, while wave parameters determined through the so-called wave reconstruction for a period of 44 years for the same region and depth were used as long-term wave data. The results of the calculations lead to the conclusions the significant wave height distributions obtained for short and long-term wave data are similar.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2018, 65, 2; 123-142
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation of Wave Run-up Height in South Baltic Sea: Case Study at Coastal Research Station at Lubiatowo, Poland
    Autorzy:
    Morawski, M.
    Różyński, G.
    Szmytkiewicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/241434.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    wave run-up
    statistics
    dissipative beach
    Baltic Sea
    Opis:
    The paper presents recent investigations of beach run-up phenomena at the Coastal Research Station of the Institute of Hydro-Engineering of the Polish Academy of Sciences at Lubiatowo, Poland. The local beach is typical of open-sea coasts of the south Baltic Sea, featuring multiple longshore bars that form predominantly dissipative systems. Measurements were taken to verify the existing formulas for the run-up height, bearing in mind that they had been derived for entirely different, oceanic conditions. The results indicate that these formulations can be adapted to south Baltic Sea conditions. This however, will require significantly larger data sets, which we intend to obtain in the near future.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2018, 65, 3; 203-291
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Driving forces of sandy sediment transport beyond the surf zone
    Autorzy:
    Stella, M.
    Ostrowski, R.
    Szmytkiewicz, P.
    Kapinski, J.
    Marcinkowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/47878.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    sandy sediment
    sediment transport
    surf zone
    wave-current interaction
    roughness
    coastal zone
    Baltic Sea
    Źródło:
    Oceanologia; 2019, 61, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Shallow-water wave energy dissipation in a multi-bar coastal zone
    Autorzy:
    Pruszak, Z.
    Szmytkiewicz, P.
    Ostrowski, R.
    Skaja, M.
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/47959.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    coastal region
    energy dissipation
    surf zone
    Baltic Sea
    wave parameter
    wave motion
    wave transformation
    shallow water
    coastal zone
    offshore wave
    Opis:
    The paper presents the results of studies of wave transformation on a multi-bar cross-shore profile of the southern Baltic Sea. The field investigations of wave motion were carried out using an offshore wave buoy and string wave gauges at the IBW PAN Coastal Research Station, Lubiatowo (Poland). These experimental results were used to validate statistical relationships between characteristic wave parameters in the coastal region and to assess wave energy dissipation in the surf zone. Asimple model for calculating the residual nearshore wave energy is proposed and tested versus the data collected in situ.
    Źródło:
    Oceanologia; 2008, 50, 1; 43-58
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation of Dune Profile Changes Generated by Hurricane: Preliminary Results
    Autorzy:
    Szmytkiewicz, P.
    Szmytkiewicz, M.
    Schönhofer, J.
    Morawski, J.
    Malicki, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/241504.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    coastal zone
    dune
    erosion
    Opis:
    The paper presents the main theoretical concepts related to methods of calculating the erosion rate for sandy dunes on natural coasts, namely, the beach equilibrium profile and incident waves. To illustrate calculations of dune erosion in the vicinity of the Coastal Research Station (CRS) in Lubiatowo, the Xbeach model (an incident wave model) was used. The calculations were carried out for hydrological and hydrodynamic conditions that accompanied Hurricane Ksawery (December 6–8, 2013). The results of the calculations were compared with the measured data. A satisfactory agreement was obtained between the predicted and measured results.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2018, 65, 3; 221-239
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coastal hydrodynamics beyond the surf zone of the South Baltic Sea
    Autorzy:
    Ostrowski, R.
    Stella, M.
    Szmytkiewicz, P.
    Kapinski, J.
    Marcinkowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/47802.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    hydrodynamic process
    coastal region
    surf zone
    Southern Baltic Sea
    wind velocity
    bottom sediment
    water column
    theoretical investigation
    experimental investigation
    Źródło:
    Oceanologia; 2018, 60, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrology and morphology of two river mouth regions (temperate Vistula Delta and subtropical Red River Delta)
    Autorzy:
    Pruszak, Z.
    Van Ninh, P.
    Szmytkiewicz, M.
    Hung, N.M.
    Ostrowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/47577.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    discharge
    sedimentation
    hydrology
    wave
    river mouth region
    Vistula delta
    morphology
    Red River Delta
    Opis:
    The paper presents a comparative analysis of two different river mouths from two different geographical zones (subtropical and temperate climatic regions). One is the multi-branch and multi-spit mouth of the Red River on the Gulf of Tonkin (Vietnam), the other is the smaller delta of the river Vistula on a bay of the Baltic Sea (Poland). The analysis focuses on the similarities and differences in the hydrodynamics between these estuaries and the adjacent coastal zones, the features of sediment transport, and the long-term morphodynamics of the river outlets. Salinity and water level are also discussed, the latter also in the context of the anticipated global effect of accelerated sea level rise. The analysis shows that the climatic and environmental conditions associated with geographical zones give rise to fundamental differences in the generation and dynamic evolution of the river mouths.
    Źródło:
    Oceanologia; 2005, 47, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coastal Processes at Selected Shore Segments of South Baltic Sea and Gulf of Tonkin (South China Sea)
    Autorzy:
    Ostrowski, R.
    Pruszak, Z.
    Różyński, G.
    Szmytkiewicz, M.
    Ninh, P. V.
    Quynh, D. N.
    Lien, N. T. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/241177.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    non-tidal and tidal coast
    waves and currents
    sediment transport
    morphodynamics
    Opis:
    The paper presents a comparative analysis of physical processes occurring at two different coasts, which belong to two different geographic zones, namely a subtropical region exposed to monsoons and typhoons and a region of temperate climate with ice-snowy winter season. The former coast comprises sandy shores nearby Lubiatowo and the Hel Peninsula, located at the south Baltic Sea in Poland. The shore at Lubiatowo is relatively stable in the long run, while the shore along Hel Peninsula is mostly vulnerable to erosion and strongly protected by use of various measures (groins, seawall and artificial beach nourishment). The second site is the eroded (and partly protected by dikes) coast at Hai Hau in the Gulf of Tonkin (the South China Sea, Vietnam). This shore segment is built of mixtures of sandy and cohesive material, comprising both marine sands and river-borne sediments which nourish the coastal zone at the Red River mouth, located northwards of the Hai Hau beach. The present analysis is focused on differences and similarities of hydro- and morphodynamics between the above coastal zones in various time and spatial scales. The analysis shows that regional climatic and environmental conditions, associated with geographical zones, play a key role in dynamic evolution of the coastal regions and necessitate different engineering activities against erosion and flooding.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2009, 56, 1-2; 3-28
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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