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Deglacial to Holocene variability in surface water characteristics and major floods in the Beaufort Sea

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Title
Deglacial to Holocene variability in surface water characteristics and major floods in the Beaufort Sea
Other Titles
해빙기에서 홀로세 동안 보퍼트해 해수특성 변화 및 주요 범람의 변화
Authors
Wu, Junjie
Stein, Ruediger
Fahl, Kirsten
Syring, Nicole
Nam, Seung-il
Hefter, Jens
Mollenhauer, Gesine
Geibert, Walter
Subject
Environmental Sciences
Keywords
Beaufort Sea; Biomarker; Flood events; Laurentide Ice Sheet; Sea ice
Issue Date
2020-10
Citation
Wu, Junjie, et al. 2020. "Deglacial to Holocene variability in surface water characteristics and major floods in the Beaufort Sea". Communications earth & environment, 1(27): 1-12.
Abstract
Surface water characteristics of the Beaufort Sea have global climate implications during the last deglaciation and the Holocene, as (1) sea ice is a critical component of the climate system and (2) Laurentide Ice Sheet (LIS) meltwater discharge via Mackenzie River to the Arctic Ocean and further to its outflow near the deep-water source area of the Atlantic Meridional Overturning Circulation (AMOC). Here we present the first high-resolution biomarker records from the southern Beaufort Sea. Multi-proxy biomarker reconstruction suggests that the southern Beaufort Sea was nearly ice-free during the deglacial to Holocene transition, and a seasonal sea-ice cover developed during the mid-late Holocene. Superimposed on the long-term change, two events of high sediment flux were documented at ca. 13 and 11 kyr BP, respectively. The first event can be attributed to the Younger Dryas (YD) flood and the second event is likely related to a second flood and/or coastal erosion.
URI
https://repository.kopri.re.kr/handle/201206/11855
DOI
http://dx.doi.org/10.1038/s43247-020-00028-z
Appears in Collections  
2020-2020, Changes in environments and coastal geomorphology of Svalbard fjords, Arctic (20-20) / Nam, Seung-il (PN20090)
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