IMPORTANT LAST-MINUTE CHANGE: THE KEYNOTE BY DR. JULIE D. ROSATI HAS BEEN CANCELED AND IS REPLACED BY A KEYNOTE BY PROF. HUIB E. DE SWART !
Committee is pleased to announce that we have an exciting lineup of
keynote speakers for CD'13!
Prof. 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
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
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
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
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.
More information : http://wwz.ifremer.fr/iowaga/