How Does the Ocean Melt Antarctic Ice Shelves?

作     者：Madelaine G. Rosevear Bishakhdatta Gayen Catherine A. Vreugdenhil Benjamin K. Galton-Fenzi 

作者机构：1Department of Mechanical Engineering University of Melbourne Melbourne Australia email: madi.gamblerosevear@unimelb.edu.au 2Australian Centre for Excellence in Antarctic Science University of Tasmania Hobart Australia 3Centre for Atmospheric and Oceanic Sciences Indian Institute of Science Bangalore India 4Australian Antarctic Division Kingston Australia 5Australian Antarctic Program Partnership Institute for Marine and Antarctic Studies University of Tasmania Hobart Australia 

出 版 物：《Marine Science》 

年 卷 期：1000年第17卷第1期

页      面：325-353页

主　　题：ice–ocean interactions ice shelves Antarctica basal melting and freezing convection stratified turbulence 

摘      要：The present-day state and future of the Antarctic Ice Sheet depend on the rate at which the ocean melts its fringing ice shelves. Ocean heat must cross many physical and dynamical barriers to melt ice shelves, with the last of these being the ice–ocean boundary layer. This review summarizes the current understanding of ice–ocean boundary-layer dynamics, focusing on recent progress from laboratory experiments, turbulence-resolving numerical simulations, novel observations, and the application to large-scale simulations. The complex interplay between buoyant meltwater and external processes such as current shear leads to the emergence of several melting regimes that we describe, as well as freezing processes. The remaining challenges include developing new parameterizations for large-scale ice–ocean models based on recent advances and understanding the coevolution of melt and basal topography.