气候变化领域集成服务门户(CCPortal): A kinematic formalism for tracking ice-ocean mass exchange on the Earth's surface and estimating sea-level change

CCPortal

DOI	10.5194/tc-14-2819-2020
	A kinematic formalism for tracking ice-ocean mass exchange on the Earth's surface and estimating sea-level change
	Adhikari S.; Ivins E.R.; Larour E.; Caron L.; Seroussi H.
发表日期	2020
ISSN	19940416
起始页码	2819
结束页码	2833
卷号	14 期号:9
英文摘要	Polar ice sheets are important components of the Earth system. As the geometries of land, ocean and ice sheets evolve, they must be consistently captured within the lexicon of geodesy. Understanding the interplay between the processes such as ice-sheet dynamics, solid-Earth deformation, and sea-level adjustment requires both geodetically consistent and mass-conserving descriptions of evolving land and ocean domains, grounded ice sheets and floating ice shelves, and their respective interfaces. Here we present mathematical descriptions of a generic level set that can be used to track both the grounding lines and coastlines, in light of ice-ocean mass exchange and complex feedbacks from the solid Earth and sea level. We next present a unified method to accurately compute the sea-level contribution of evolving ice sheets based on the change in ice thickness, bedrock elevation and mean sea level caused by any geophysical processes. Our formalism can be applied to arbitrary geometries and at all timescales. While it can be used for applications with modeling, observations and the combination of two, it is best suited for Earth system models, comprising ice sheets, solid Earth and sea level, that seek to conserve mass. © 2020 Author(s).
英文关键词	bedrock; floating ice; geophysics; ice sheet; ice thickness; kinematics; sea level; sea level change; solid Earth; timescale
语种	英语
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202007
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States
推荐引用方式 GB/T 7714	Adhikari S.,Ivins E.R.,Larour E.,et al. A kinematic formalism for tracking ice-ocean mass exchange on the Earth's surface and estimating sea-level change[J],2020,14(9).
APA	Adhikari S.,Ivins E.R.,Larour E.,Caron L.,&Seroussi H..(2020).A kinematic formalism for tracking ice-ocean mass exchange on the Earth's surface and estimating sea-level change.Cryosphere,14(9).
MLA	Adhikari S.,et al."A kinematic formalism for tracking ice-ocean mass exchange on the Earth's surface and estimating sea-level change".Cryosphere 14.9(2020).