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Water 2018, 10(7), 849; https://doi.org/10.3390/w10070849

Long-Term Shoreline Displacements and Coastal Morphodynamic Pattern of North Rhodes Island, Greece

1
Hellenic Centre for Marine Research (HCMR), Institute of Oceanography, 46.7 km Athens-Sounio Ave., P.O. Box 712, P.C.19013 Anavissos, Greece
2
Geography Department, Harokopio University, El. Venizelou 70, 17671 Athens, Greece
*
Author to whom correspondence should be addressed.
Received: 31 March 2018 / Revised: 11 June 2018 / Accepted: 19 June 2018 / Published: 26 June 2018
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Abstract

Shoreline evolution and seabed morphology changes depend on coastal geomorphology as well as hydrodynamics of the nearshore region. Τhis study investigates the morphological evolution of the northernmost headland of Rhodes Island, Greece, using a method that combines historical shoreline evolution analysis and numerical modelling of coastal processes. The satellite and aerial imagery analysis under a GIS platform reveals that, since 1982, the overall surface area of the backshore has slightly increased, though in shorter period times, large variations have been identified. The part of the beach that is most prone to extreme changes is the spit-like formation at the tip of the headland. Wind-generated waves and induced currents are the main forcing factors that affect the shape and orientation of the spit-like beach. This spit-like morphology changes seasonally due to variations in the dominant wave regime. West sector waves cause sediment deposition at the eastern sector of the spit-like formation, whereas strong southeast wave events during the winter favor accretion at the west sector, inducing an asymmetrical shape. Thus, the analysis results indicate an annual balance in sediment transport. View Full-Text
Keywords: coastal processes; shoreline evolution; sediment transport; wave-current modeling; GIS analysis coastal processes; shoreline evolution; sediment transport; wave-current modeling; GIS analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gad, F.-K.; Hatiris, G.-A.; Loukaidi, V.; Dimitriadou, S.; Drakopoulou, P.; Sioulas, A.; Kapsimalis, V. Long-Term Shoreline Displacements and Coastal Morphodynamic Pattern of North Rhodes Island, Greece. Water 2018, 10, 849.

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