Videos

Wanying Kang - Heat and Tracer Transport in the Subsurface Ocean of Icy Satellites - IPAM at UCLA

Presenter
January 29, 2025
Abstract
Recorded 29 January 2025. Wanying Kang of the Massachusetts Institute of Technology presents "Heat and Tracer Transport in the Subsurface Ocean of Icy Satellites" at IPAM's Rotating Turbulence: Interplay and Separability of Bulk and Boundary Dynamics Workshop. Abstract: On icy satellites, the boundary between shelf ice and subsurface ocean has been considered in static contexts, but many moons possess ice shells with periodic libration and possible non synchronous rotation that suggest a state of non-negligible relative motion. This librational motion would induce shear in the boundary layer, analogous to the wind-driven bondary layer in Earth ocean. Linear theory predicts the formation of critical layers in which this shear may dissipate internal waves as they propagate upward to the ice shell. Furthermore, the boundary shear may excite turbulence, which in turn enhances dissipation. Proper treatment of the ice-ocean interface as a dynamic boundary on icy satellites may be necessary in global simulations of internal waves. Learn more online at: https://www.ipam.ucla.edu/programs/workshops/rotating-turbulence-interplay-and-separability-of-bulk-and-boundary-dynamics/