Lucie Bordois
Laboratoire d'aérologie & CNRM-GAME

Internal tide modeling : Hydraulic & Topographic controls

Time and place
Tuesday 1 December 2015, 11.15
Room C645, Arrhenius Laboratory, 6th floor

Internal tides are involved in the Meridional Overturning Circulation energy balance. The issue about the relative importance of the mechanical and thermodynamical energy sources induces a need for a quantitative evaluation of the energy transfers and for a clear understanding of the physical processes involved in these energy transfers. This work follows the line of research of Dossmann (2012), on topographically induced internal solitary waves which used a complementary approach relying on numerical and experimental configurations at laboratory scale. In this context, we explore internal tide regimes but in “supercritical” regions: internal tide generation area with supercritical topography and hydraulic control. Simulations are performed using the nonhydrostatic and non-Boussinesq version of the regional oceanic circulation model SNH.