Coastal flood protection systems – concepts and analysis Marc Igigabel, Yves Nédélec, Nathalie Bérenger, Nicolas Flouest, Alexis Bernard, Patrick Chassé and Christian Pité E3S Web Conf., 7 (2016) 03011 Published online: 20 October 2016 DOI: 10.1051/e3sconf/20160703011