region in the vicinity of Marguerite Bay, on the western side of the Antarctic Peninsula, to
determine the factors that contribute to Antarctic krill survival over winter. Subsurface
intrusions of upper circumpolar deep water (UCDW) onto the shelf provide much of the
nutrient flux into the region. Here we describe the small-scale processes that contribute to
upward diapycnal fluxes of heat, salt, and nutrients from the UCDW to the surface-mixed …