期刊
EARTH SYSTEM SCIENCE DATA
卷 14, 期 4, 页码 1447-1492出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/essd-14-1447-2022
关键词
-
资金
- Japan Society for the Promotion of Science Postdoctoral Fellowship
- Helmholtz Exzellenznetzwerks The Polar System and its Effects on the Ocean Floor (POSY)
- Helmholtz Climate Initiative REKLIM (Regional Climate Change)
- Helmholtz Association of German research centres (HGF)
- Research Council of Norway
- Swedish Natural Science Research Council (VR) [G-650-199815671/2000, 621-2008-3759]
- Swedish Polar Research Secretariat (SPRS)
- Academy of Finland
- Finnish Academy of Science and Letters
- PACESII program at the Alfred Wegener Institute
- Bundesministerium fur Bildung und Forschung funded project, PalMod
- ERC [ERC-StG-802414]
- Swiss Academy of Sciences
- Chinese Academy of Sciences
This study synthesizes sea-level proxies for the last interglacial period in the glaciated Northern Hemisphere and explores factors such as sea-level rise and glacial retreat. The results show that sea level during the last interglacial period was higher than at present, providing valuable insights for predicting future sea-level rise.
Because global sea level during the last interglacial (LIG; 130-115 ka) was higher than today, the LIG is a useful approximate analogue for improving predictions of future sea-level rise. Here, we synthesize sea-level proxies for the LIG in the glaciated Northern Hemisphere for inclusion in the World Atlas of Last Interglacial Shorelines (WALIS) database. We describe 82 sites from Russia, northern Europe, Greenland and North America from a variety of settings, including boreholes, riverbank exposures and along coastal cliffs. Marine sediments at these sites were constrained to the LIG using a variety of radiometric methods (radiocarbon, uranium-thorium, potassium-argon), non-radiometric methods (amino acid dating, luminescence methods, electron spin resonance, tephrochronology) as well as various stratigraphic and palaeo-environmental approaches. In general, the sites reported in this paper do not offer constraint on the global LIG highstand, but rather evidence of glacial isostatic adjustment (GIA)-influenced sea-level positions following the Marine Isotope Stage 6 glaciation (MIS 6; 191-130 ka). Most of the proxies suggest that sea level was much higher during the LIG than at the present time. Moreover, many of the sites show evidence of regression due to sea-level fall (owing to glacial isostatic uplift), and some also show fluctuations that may reflect regrowth of continental ice or increased influence of the global sea-level signal. In addition to documenting LIG sea-level sites in a large swath of the Northern Hemisphere, this compilation is highly relevant for reconstructing the size of MIS 6 ice sheets through GIA modelling. The database is available at https://doi.org/10.5281/zenodo.5602212 (Dalton et al., 2021).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据