气候变化领域集成服务门户(CCPortal): Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic

CCPortal

DOI	10.1029/2020GL088144
	Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic
	Ludwigsen C.A.; Khan S.A.; Andersen O.B.; Marzeion B.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Vertical land motion (VLM) from past and ongoing glacial changes can amplify or mitigate ongoing relative sea level change. We present a high-resolution VLM model for the wider Arctic, that includes both present-day ice loading (PDIL) and glacial isostatic adjustment (GIA). The study shows that the nonlinear elastic uplift from PDIL is significant (0.5–1 mm yr−1) in most of the wider Arctic and exceeds GIA at 15 of 54 Arctic GNSS sites, including sites in nonglaciated areas of the North Sea region and the east coast of North America. Thereby the sea level change from PDIL (1.85 mm yr−1) is significantly mitigated from VLM caused by PDIL. The combined VLM model was consistent with measured VLM at 85% of the GNSS sites ((Formula presented.)) and outperformed a GIA-only model ((Formula presented.)). Deviations from GNSS-measured VLM can be attributed to local circumstances causing VLM. ©2020. The Authors.
英文关键词	Sea level; Deglaciations; Glacial isostatic adjustment; High resolution; Ice loading; Nonlinear elastics; Relative sea-level changes; Sealevel change; Vertical land motions; Glacial geology; deglaciation; glacioisostasy; GNSS; numerical model; sea level change; uplift; Arctic; Atlantic Ocean; North America; North Sea
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/169666
作者单位	DTU Space, Technical University of Denmark, Kongens Lyngby, Denmark; Institute of Geography and MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
推荐引用方式 GB/T 7714	Ludwigsen C.A.,Khan S.A.,Andersen O.B.,et al. Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic[J],2020,47(19).
APA	Ludwigsen C.A.,Khan S.A.,Andersen O.B.,&Marzeion B..(2020).Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic.Geophysical Research Letters,47(19).
MLA	Ludwigsen C.A.,et al."Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic".Geophysical Research Letters 47.19(2020).