The Organizing Committee is pleased to announce that we have an exciting lineup of keynote speakers for CD'13!

Prof. Huib E. de Swart (Utrecht University)

Huib E. de Swart
   Huib de Swart obtained his PhD degree in 1988 from Utrecht University on the nonlinear dynamics of large-scale weather systems. After that period he worked on coastal and estuarine morphodynamics. Since 2005 he is professor in Coastal & Shelf Sea Dynamics at the Faculty of Science, Utrecht University. Currently, he and his group study tidal inlet and back barrier systems, ebb-tidal deltas, estuarine dynamics (currents, sediment transport, turbidity and ecology), and bedforms in the nearshore zone and on the shelf. In his Keynote Talk, he will discuss recent advances in understanding the role of back-barrier basins in controlling the stability of tidal inlets and the geometrical characteristics of ebb-tidal deltas, i.e., bodies of sand that are located seaward of these inlets.
   Tidal inlet systems are characterised by complex feedbacks between tidal currents, waves, sediment transport and the changing morphology. These feedbacks result in fascinating behaviour, like the emergence of ebb-tidal deltas on the seaward side of the inlets, the evolution of channel-shoal systems in the back barrier basins and potential siltation of inlets. This presentation will focus on the sensitivity of the stability of tidal inlets and of the geometry of ebb-tidal deltas (sand volume and orientation of the main ebb channel) to the shape of back-barrier basins. First, data will be discussed which reveal how interventions in the back-barrier basin affected inlet stability and the geometry of ebb-tidal deltas. Next, results of an idealised model will be discussed, which show under what conditions multiple inlets draining the same back barrier basin can exist. Finally, the effect of the length of the back-barrier basin on the sand volume and spatial symmetry of ebb-tidal deltas is quantified with the use of a numerical morphodynamic model. Results will be interpreted in terms of tidal resonance characteristics in the basin and associated net sediment transport in the inlet.

Dr. Gerben Ruessink (Utrecht University)

Gerben Ruessink

   Gerben Ruessink received his PhD from Utrecht University, Utrecht, Netherlands, in 1998. He then worked for several years in the Marine Coastal Management group at WL|Delft Hydraulics and returned to Utrecht University in 2002. Here, he now holds the position of Associate Professor in Coastal Morphodynamics. Together with his research group, he studies the morphodynamics of wave-dominated coasts, from time scales of seconds (turbulence beneath breaking waves), days-years (nearshore sandbars), to decades (climate-change impacts on coastal evolution). His work on nearshore sandbars includes their cross-shore behaviour, the generation and subsequent non-linear evolution of alongshore variability (crescentic planshapes and rip channels), as well as the effect of nourishments on sandbar evolution. Gerben also serves as the Associate Editor for Nearshore Processes with the Journal of Geophysical Research - Oceans.
   In his Keynote Talk, he will describe recent advances in the understanding of finite-amplitude behaviour of crescentic sandbars and rip channels in multiple sandbar systems. The advances are based on long-term, high-resolution remote video observations,  numerical model simulations, and data-model integration.

Dr. Fabrice Ardhuin (IFREMER)

Fabrice Ardhuin

   Fabrice Ardhuin graduated from Ecole Polythechnique in 1997 and entered the French administration as ingenieur de l'armement. He received his PhD from the Naval Postgraduate School, Monterey, California, in 2001, and served as a researcher and program manager at the French Hydrographic and Oceanographic Office until 2009, working on improving wave forecasting and developping a nearshore forecasting capability. This work included novel parameterizations for spectral wave models, now used operationnally at Meteo-France and NCEP, and theoretical work on wave-current interactions, which owed him the Fofonoff award from the American Meteorological Society. Raising the profile of nearshore research for the French Department of Defense  also made possible the 2008 Truc Vert experiment. In 2010, Fabrice joined Ifremer to lead an ERC-funded project for the integration of ocean wave research in Earth System sciences, combining remote sensing, coastal dynamics, seismology and air-sea interaction. The outcomes of that project are new parameterizations and wave databases.
   In his Keynote Talk, he will describe recent advances in the spectral modelling of sea-states and its application at coastal scales in coupled wave-current numerical models.
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