On Uncertainties in Determination of Sediment Transport Rates in Coastal Regions

• Autorzy: Ostrowski R.

Identyfikatory

DOI

10.1515/heem-2016-0017

• Języki publikacji: EN

Abstrakty

EN

The paper deals with research uncertainties, difficulties, inaccuracies and unreliabilities related to the modelling of physical phenomena involving coastal lithodynamics. The considerations are focused on processes of wave transformation, wave-driven currents and sediment transport itself. It is shown that possible inaccuracies at individual stages of the modelling of coastal hydrodynamics can lead to serious uncertainties with respect to the ultimate modelling output, namely bed shear stresses and sediment transport rates. These inaccuracies result mostly from arbitrarily assumed parameters and constants. Other modelling biases discussed in the paper comprise simplifications and approximations with respect to sediment resources and size-graded properties, randomness of hydrodynamic impacts, bottom roughness and land-borne factors involved in coastal lithodynamics.

Słowa kluczowe

EN

waves; wave-driven currents; bed shear stresses; friction velocity; sediment transport

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2016
• Tom: Vol. 63, nr 4
• Strony: 265--280
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Ostrowski R.

• Institute of Hydro-Engineering, Polish Academy of Sciences, Kościerska 7, 80-328 Gdańsk, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).