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

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    Wyświetlanie 1-15 z 15
    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:
    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:
    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:
    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
    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:
    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:
    Hydrodynamics and Lithodynamics of Dissipative and Reflective Shores in View of Field Investigations
    Autorzy:
    Ostrowski, R.
    Pruszak, Z.
    Skaja, M.
    Szmytkiewicz, M.
    Trifonova, E.
    Keremedchiev, S.
    Andreeva, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/241380.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    cross-shore profile
    waves
    currents
    grain size distributions
    sediment transport
    Opis:
    The paper presents a comparative analysis of physical processes occurring at two different coasts, which belong to two different European seas. The first coast under examination comprises the sandy shore nearby Lubiatowo, located at the south Baltic Sea in Poland. The second site is represented by the sandy coast in Shkorpilovtsi, located at the west Black Sea in Bulgaria. Both sites are equipped with field research facilities ensuring extensive and precise in situ investigations. The study is focused on differences and similarities of hydro- and lithodynamics as well as the nearshore morphology between the above coastal zones. The present analysis is based on the results of the field campaigns carried out in recent years at the research facilities in Lubiatowo and Shkorpilovtsi. Considering the way in which wave energy transforms on the cross-shore profile, the sea shore at Lubiatowo is found distinctly dissipative while the shore at RB Shkorpilovtsi has a reflective character. This fact implies some differences in the features of wave-current motion and sediment transport.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2010, 57, 3-4; 199-218
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    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:
    Longshore sediment transport at Golden Sands (Bulgaria)
    Autorzy:
    Nikolov, H.
    Trifonova, E.
    Cherneva, Z.
    Ostrowski, R.
    Skaja, M.
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/48714.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    coastal zone
    wave refraction
    wave diffraction
    Black Sea
    sandy beach
    sediment transport
    Golden Sands
    Bulgaria
    Opis:
    The paper presents the results of studies on the qualitative and quantitative features of the littoral drift at Golden Sands (Bulgaria), carried out jointly by Polish and Bulgarian researchers. The mathematical modelling of physical coastal processes took wave transformation (wave diffraction and refraction; the effects of shoaling and wave breaking) and longshore sediment transport into account. The computations were carried out for the mean statistical annual wave climate, determined on the basis of IO BAS wave data, simulated using the WAM method from long-term Black Sea wind data. The results of sediment transport computations clearly show that its direction off the Golden Sands shore is from north to south.
    Źródło:
    Oceanologia; 2006, 48, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling longshore sediment transport under asymmetric waves
    Autorzy:
    Ostrowski, R.
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/49027.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    coastal zone
    hydrodynamic condition
    sandy sediment
    wave-current interaction
    sediment transport
    wave asymmetry
    Opis:
    Two wave theories are applied in calculations of longshore sediment transport rates: the second Stokes approximation and the cnoidal theory. These approaches are used to model sand motion in nearshore locations beyond and within the surf zone. Wave-current interaction in the nearbed layer and bed shear stresses are solved using a momentum integral method, whereas sediment transport is described by a three-layer model encompassing bedload, contact load and suspended load. Computational results for asymmetric waves are compared with the results obtained using linear wave theory and the conventional sediment transport models of Bailard (1981), Bijker (1971) and Van Rijn (1993).
    Źródło:
    Oceanologia; 2006, 48, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quasi 3D model of wave-induced currents in coastal zone
    Autorzy:
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/241452.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Opis:
    The present model allows for simultaneous computations of depth-variable longshore currents and undertows, being the two most important components of coastal flows, at arbitrarily chosen locations of the nearshore zone, with the assumption of parallel isobaths. In the model, the flow velocities are calculated as functions of energy dissipation due to wave breaking. In the description of the wave-breaking, the effect of a roller has been taken into account. As a result of interaction of the cross-shore and longshore currents, a spiral-like resultant velocity vector appears, variable over water depth. The comparisons of calculated and measured vertical distributions of water flow velocity for conditions of the campaigns "Lubiatowo 87" and "Lubiatowo 96" have shown good conformity between experimental data and the present model.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2002, 49, 1; 57-81
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sediment Transport Issues Related to a Planned Cross-cut through the Vistula Spit, Poland
    Autorzy:
    Kaczmarek, L. M.
    Ostrowski, R.
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/241444.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    Vistula Spit
    cross-cut
    waves
    sediment transport
    breakwaters
    shoreline changes
    Opis:
    In order to make a navigable connection between the Vistula Lagoon and the Baltic Sea independent of an attitude of the Russian authorities, a cross-cut in the Polish part of the Vistula Spit is planned. The cross-cut will constitute an alternative waterway with respect to the existing one, leading through the Pilawa Strait which belongs to the Russian territorial waters. The new outlet will require breakwaters and an approach channel on the open sea side, as well as a waterway across the Vistula Lagoon to the harbour of Elbląg. The planned cross-cut is located about 3 km from the root of the Vistula Spit, at Skowronki village. The paper comprises an analysis of regional wave parameters in a mean statistical year on the basis of the Baltic wave climate reconstructed for the period of 44 years, together with a calculation of the longshore sediment transport rates. An influence of the planned coastal structures on the shoreline evolution, as well as the approach channel silting-up rates, in the first 10 years after the construction of the cross-cut, are estimated. An optimised layout of the planned approach channel and lengths of the planned breakwaters are recommended to facilitate the maintenance of the coast and the new waterway.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2010, 57, 2; 119-137
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    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:
    Variability of Hydrodynamic and Lithodynamic Coastal Processes in the East Part of the Gulf of Gdańsk
    Autorzy:
    Ostrowski, R.
    Pruszak, Z.
    Skaja, M.
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/241442.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    sediment transport
    waves
    currents
    deep-water climate
    Opis:
    The paper presents new findings concerning motion of water and sediment in the coastal zone of the east part of the Gulf of Gdańsk, from the Vistula River mouth at Świbno (Poland) to Cape Taran (Russia, Kaliningrad Oblast). The presented study deals with spatial variability of parameters of hydrodynamic and lithodynamic processes which have been subject to theoretical modelling. For the considered coastal segment, deep-water wave conditions reconstructed for a 44-year period have been analysed and transformed to the nearshore zone. Next, velocities of wave-driven longshore currents for the mean statistical year have been calculated, along with the longshore sediment transport rates. Regarding the net longshore sand motion, its detected direction is from Cape Taran towards the Vistula Spit. Very high annual rates of longshore sediment transport have been obtained for the coastal segment at Sambian Peninsula. These rates decrease considerably along the Vistula Spit, reaching zero at a distance of about one third of the Polish part of the Spit, measured from its root. At this location, the net longshore sediment transport (resulting from net longshore wave-current impact) reverses from westward to eastward.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2010, 57, 2; 139-153
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wave transformation in a multi-bar surf zone: case study of Lubiatowo (Poland)
    Autorzy:
    Lan, Y. J.
    Hsu, T. W.
    Ostrowski, R.
    Szmytkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/241174.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    wave transformation
    wave energy dissipation
    wave breaking
    multi-bar cross-shore profile
    phase-averaged model
    hydraulic jump model
    Opis:
    The paper presents results of field and theoretical investigations of wave transformation in the surf zone near the IBW PAN Coastal Research Station in Lubiatowo (Poland, the south Baltic Sea). The study site displays multi-bar cross-shore profiles that intensively dissipate wave energy, mostly induced by breaking. The main field data comprise wave heights and cross-shore bathymetric profiles. Wave transformation is modelled theoretically by two approaches, namely the IBW PAN phase-averaged wave transformation model and the approach based on the hydraulic jump model, developed by Hsu & Lai (2009) for hydrological situations encountered under the actual conditions of two field campaigns – in 1987 and 1996. Discrepancies between the measured data and the model results are discussed. In general, the model results are in good agreement with the in-situ observations. The comparison of the field data with the computational results concerns a part of the surf zone between about 5 m water depth and the first nearshore stable bar, where the depth amounts to ca. 1.2 m.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2016, 63, 1; 19-34
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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