SHORELINE IDENTFICATION USING SATELLITE IMAGES
This source preferred by Luciana Esteves
Authors: García-Rubio, G., Huntley, D., Kingston, K. and Esteves, L.S.
Editors: Mizuguchi, M. and Sato, S.
Start date: 7 September 2009
Shoreline identification using satellite images is compared with in situ shoreline measurements in the Yucatan Peninsula to evaluate its potential for studying shoreline changes in places with a paucity of data. This study firstly tests the detection limits of shoreline identification by comparing a SPOT image with ground shoreline measurements, and secondly we show examples of overlaying satellite-derived shorelines from three different years to assess the ability of the technique to quantify real shoreline changes. The mean (-0.19 m) and the standard deviation (4 m) between the ground and satellite-derived shoreline are much smaller than the pixel size. Shoreline changes of more than 30 m were measured between images spanning several years (2004, 2006 and 2008) in areas near to coastal structures and near urban areas without coastal vegetation.