气候变化领域集成服务门户(CCPortal): Sea Level Budgets Should Account for Ocean Bottom Deformation

CCPortal

DOI	10.1029/2019GL086492
	Sea Level Budgets Should Account for Ocean Bottom Deformation
	Vishwakarma B.D.; Royston S.; Riva R.E.M.; Westaway R.M.; Bamber J.L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	The conventional sea level budget (SLB) equates changes in sea surface height with the sum of ocean mass and steric change, where solid-Earth movements are included as corrections but limited to the impact of glacial isostatic adjustment. However, changes in ocean mass load also deform the ocean bottom elastically. Until the early 2000s, ocean mass change was relatively small, translating into negligible elastic ocean bottom deformation (OBD), hence neglected in the SLB equation. However, recently ocean mass has increased rapidly; hence, OBD is no longer negligible and likely of similar magnitude to the deep steric sea level contribution. Here, we use a mass-volume framework, which allows the ocean bottom to respond to mass load, to derive a SLB equation that includes OBD. We discuss the theoretical appearance of OBD in the SLB equation and its implications for the global SLB. ©2020. The Authors.
英文关键词	Budget control; Deformation; Surface waters; altimetry; Glacial Isostatic Adjustments; GRACE; Mass change; Sea surface height; Solid earth; steric; Steric sea level; Sea level
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170731
作者单位	School of Geographical Sciences, University of Bristol, Bristol, United Kingdom; Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands
推荐引用方式 GB/T 7714	Vishwakarma B.D.,Royston S.,Riva R.E.M.,et al. Sea Level Budgets Should Account for Ocean Bottom Deformation[J],2020,47(3).
APA	Vishwakarma B.D.,Royston S.,Riva R.E.M.,Westaway R.M.,&Bamber J.L..(2020).Sea Level Budgets Should Account for Ocean Bottom Deformation.Geophysical Research Letters,47(3).
MLA	Vishwakarma B.D.,et al."Sea Level Budgets Should Account for Ocean Bottom Deformation".Geophysical Research Letters 47.3(2020).