HR: 13:30h
AN: OS43B-01 INVITED     [Abstracts]
TI: The Vibrant Coastal Dynamics - always transient, always changing - within a repetitive framework?
AU: * Gangopadhyay, A
EM: avijit@umassd.edu
AF: Physics/SMAST, University of Mass at Dartmouth 285 old Westport Road , N. Dartmouth, MA 02747 United States
AB: The dynamics of the coastal region is vibrant in many different spatial and temporal scales. Our understanding of these regions has however identified a specific set of spatial-temporal behavior depending on the prevailing set-up conditions. These set-ups include the local effects of bathymetry, the coastal boundaries and the wind and heat fluxes. Remote forcing such as propagating Kelvin waves, Internal Waves, Rossby waves and other advection processes influence the coastal water mass properties as well. Circulation structures or features in the coastal regions are thus always transient and ever-changing. However, within this fast-changing system, there apparently exists a notion of repetition of certain types of structures like upwelling, fronts, coastal eddies, mushroom vortices, plumes etc. So, in a numerical modeling exercise, these features can be implemented when identified by satellites and assumed a three-dimensionality a-priori. In this presentation, we show such development of `feature models' for coastal upwelling, coastally trapped waves, and buoyant plumes for different regions around the world ocean. A special emphasis is on a proposed framework in which we can use SAR imagery for `feature modeling' an internal solitary wave. Specific data stream generations for forecasting and assimilation of numerical models using such synoptic feature models would then benefit any real-time operations and dynamical process studies.
DE: 4219 Continental shelf processes
DE: 4255 Numerical modeling
DE: 4279 Upwelling and convergences
DE: 4283 Water masses
DE: 4544 Internal and inertial waves
SC: Ocean Sciences [OS]
MN: 2005 Joint Assembly