Modelling nearshore hydrodynamics and circulation under the impact of high waves at the coast of Varkiza in Saronic-Athens Gulf

• Autorzy: Belibassakis K. A. , Karathanasi F. E.

Identyfikatory

DOI

10.1016/j.oceano.2017.04.001

• Języki publikacji: EN

Abstrakty

EN

A plethora of physical parameters, such as hydro-, litho- and morpho-dynamic characteristics, are essential for understanding the response of coastal systems to intense sea states in terms of sediment transport and shoreline evolution. Nowadays, numerical models are extensively applied to meet the above needs and support coastal planning and management. In the present work, a 2DH dynamic modelling system is used for simulating the hydrodynamic and meteorological/oceanographic characteristics of the Saronic Gulf, in order to examine circulation patterns and predict sediment transport phenomena under high wave conditions at the coast of Varkiza, a sandy beach in the southern Attica, Greece. Time series of wind and wave data were used as input at the open boundaries of the model domain while the model was calibrated and validated through (linear and directional) statistical measures with respect to in situ wave measurements, since there was lack of hydrodynamic data at the site of interest. The simulation period of the model was between January 3 and February 19, 2013, with consecutive high waves in-between. The good agreement of the numerical results from the wave and hydrodynamic model with in situ measurements confirmed the suitability of the model for the support of sediment transport rates at Varkiza coastal segment. Model results reveal that there is a counter-clockwise water circulation during high waves that contribute to the erosion of the examined beach, which is also confirmed by independent field measurements.

Słowa kluczowe

EN

high waves; wave modelling; current modelling; sediment transport; Varkiza coast

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2017
• Tom: No. 59 (3)
• Strony: 350--364
• Opis fizyczny: Bibliogr. 62 poz., fot., mapy, tab., wykr.

Twórcy

autor

Belibassakis K. A.

• School of Naval Architecture & Marine Engineering, National Technical University of Athens, Athens, Greece

autor

Karathanasi F. E.

• School of Naval Architecture & Marine Engineering, National Technical University of Athens, Athens, Greece

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