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ISPRS Int. J. Geo-Inf. 2014, 3(1), 18-28; doi:10.3390/ijgi3010018

Quantification of Deltaic Coastal Zone Change Based on Multi-Temporal High Resolution Earth Observation Techniques

Department of Geography & Climatology, National & Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15784, Greece
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Received: 29 November 2013 / Revised: 26 December 2013 / Accepted: 8 January 2014 / Published: 14 January 2014
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Abstract

A series of methodologies are described in this paper aiming to quantify the natural hazard due to the coastal changes at a deltaic fan. The coastline of Istiaia (North Evia, Greece) has been chosen for this study as several areas of accretion and erosion have been identified during the past few decades. We combined different types of datasets, extracted from high resolution panchromatic aerial photographs and traced the contemporary shoreline by high accuracy surveying with Real Time Kinematics (RTK) GPS equipment. The interpretation of all shorelines required geo-statistical analysis in a Geographical Information System. A large number of high resolution morphological sections were constructed normally to the coast, revealing erosional and depositional parts of the beach. Retreating and extension rates were calculated for each section reaching the values of 0.98 m/yr and 1.36 m/yr, respectively. The results proved to be very accurate, allowing us to expand the developed methodology by using more complete time-series of remote sensing datasets along with more frequent RTK-GPS surveying.
Keywords: historical remote sensing data interpretation; digital shoreline analysis; beach erosion rates; Real Time Kinematics (RTK) GPS applications historical remote sensing data interpretation; digital shoreline analysis; beach erosion rates; Real Time Kinematics (RTK) GPS applications
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Vassilakis, E.; Papadopoulou-Vrynioti, K. Quantification of Deltaic Coastal Zone Change Based on Multi-Temporal High Resolution Earth Observation Techniques. ISPRS Int. J. Geo-Inf. 2014, 3, 18-28.

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