How Does the Ocean Melt Antarctic Ice Shelves?

IF 14.3 1区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS
Madelaine G Rosevear, Bishakhdatta Gayen, Catherine A Vreugdenhil, Benjamin K Galton-Fenzi
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引用次数: 0

Abstract

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.

海洋是如何融化南极冰架的?
南极冰原的现状和未来取决于海洋融化其边缘冰架的速度。海洋热量必须穿越许多物理和动力学障碍才能融化冰架,其中最后一个障碍就是冰-海边界层。本综述总结了目前对冰洋边界层动力学的理解,重点介绍了实验室实验、湍流解析数值模拟、新观测以及大规模模拟应用等方面的最新进展。浮力融水与海流切变等外部过程之间复杂的相互作用导致出现了我们所描述的几种融化状态以及冻结过程。剩下的挑战包括根据最新进展为大规模冰-海模型开发新的参数,以及理解融化和基底地形的共同演变。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Annual Review of Marine Science
Annual Review of Marine Science 地学-地球化学与地球物理
CiteScore
33.60
自引率
0.60%
发文量
40
期刊介绍: The Annual Review of Marine Science, published since 2009, offers a comprehensive overview of the field. It covers various disciplines, including coastal and blue water oceanography (biological, chemical, geological, and physical), ecology, conservation, and technological advancements related to the marine environment. The journal's transition from gated to open access through Annual Reviews' Subscribe to Open program ensures that all articles are available under a CC BY license, promoting wider accessibility and dissemination of knowledge.
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