Andrew James Manning, University of Hull, Energy and Environment Institute, Hull, United Kingdom; HR Wallingford Ltd, Coasts & Oceans Group, Wallingford, United Kingdom, Nicolas Gratiot, CARE-IRD, Grenoble, France, Cédric Legout, LTHE Laboratoire d'étude des Transferts en Hydrologie et Environnement, Grenoble, France and Herve Michallet, Laboratoire des Ecoulements Géophysiques et Industriels, Grenoble, France