Small harbour at Keri, Ionian Islands

Country / Area : Greece / Keri - Zante Island

Institution : Perfecture of Zante

Duration of Service : 2009

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Project description:

Keri is located in the Gulf of Laganas, on the southeast coast of the island of Zakynthos, west of the island of Marathonissi. the possibility of sediment’s deposit or erosions, as well as the sediment movement in relation to the harbor works.

The coastal engineering study included the following:

  • Data collection: a) climatic data of the region (e.g. rainwater run-off and according data, etc) in order to calculate the wave climate in the deep water, b) aerial photos of different years for the analysis of the evolution of the coastline
  • Numerical modeling: Waves’ transformation from deep water to the coastal zone taking into account refraction, defraction and waves’ breaking.
  • Sediment’s Recognition: seabed sediments collection
  • Sediment transport: Calculation of longshore and crosshore sediment tranport, taking into account the results of waves’ simulation, the analyses of sediments, the streams and rivers, the sea currents, the tides and the coastline’s changes in previous years on the basis of aerial photographs. The calculation of sediment transport was by using empirical (CERC) and numerical models (SBEACH).