HR: 0830h
AN: OS41A-06    [Abstracts]
TI: Nonhydrostatic Dynamics of High Amplitude Internal Waves in Canyons and Straits
AU: * Gallacher, P C
EM: gallacher@nrlssc.navy.mil
AF: Coupled Processes Section, Oceanography Division, Naval Research Laboratory, Code 7331, Stennis Space Center, MS 39529 United States
AU: Schaferkotter, M
EM: schaferkotter@nrlssc.navy.mil
AF: Jacobs Sverdrup, Inc., 4387 Leisure Time Dr., Diamondhead, MS United States
AU: Izquierdo, A
EM: Alfredo. Izquierdo@uca.es
AF: Applied Physics Department, Faculty of Marine and Environmental Sciences, University of C diz, C diz, Spain
AU: Vazquez, A
EM: A.Vazquez@uca.es
AF: Applied Physics Department, Faculty of Marine and Environmental Sciences, University of C diz, C diz, Spain
AU: Bruno, M
EM: Miguel.Bruno@uca.es
AF: Applied Physics Department, Faculty of Marine and Environmental Sciences, University of C diz, C diz, Spain
AB: High Amplitude Internal Waves (HAIWs) and Internal Bores (IBs) are frequently generated by the interaction of internal tides with topography. These interactions are intensified in canyons and straits where the flow is constricted by the geometry. Several mechanisms have been proposed for the generation of HAIWs and IBs from internal tides. To better understand the dynamics of these processes we simulate the generation and propagation of HAIWs and IBs in the Straits of Gibraltar using nonhydrostatic models. The nonhydrostatic models will be forced at the open boundaries using data from the two layer, three dimensional model developed at the University of Cadiz. The results are compared with measurements taken as part of the Gibraltar Mixing (GIMIX) project, funded by the Science and Technology Ministry of the Spanish Government. The results of this work also have implications for the dynamics of the Luzon Straits which is the site of observations and simulations in the near future. We will also present nonhydrostatic simulations of the Hudson canyon and the New Jersey shelf where barotropic tides generate HAIWs that propagate up the canyon onto the shelf.
DE: 3220 Nonlinear dynamics
DE: 4255 Numerical modeling
DE: 4528 Fronts and jets
DE: 4544 Internal and inertial waves
DE: 4572 Upper ocean processes
SC: Ocean Sciences [OS]
MN: 2005 Joint Assembly