Joao Albuquerque, University of Auckland, School of Environment, Auckland, New Zealand, Jose A.A. Antolinez, Deltares, Delft, Netherlands, Richard M Gorman, NIWA, Hamilton, New Zealand, Fernando J. Mendez, University of Cantabria, Ciencias y Tecnicas del Agua y del Medio Ambiente, Santander, Spain and Giovanni Coco, University of Auckland, Auckland, New Zealand