Articles | Volume 13, issue 9
Clim. Past, 13, 1111–1127, 2017
https://doi.org/10.5194/cp-13-1111-2017

Special issue: Climate–carbon–cryosphere interactions in the...

Clim. Past, 13, 1111–1127, 2017
https://doi.org/10.5194/cp-13-1111-2017
Research article
08 Sep 2017
Research article | 08 Sep 2017

Holocene dynamics in the Bering Strait inflow to the Arctic and the Beaufort Gyre circulation based on sedimentary records from the Chukchi Sea

Masanobu Yamamoto et al.

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Short summary
Based on mineral records from the northern Chukchi Sea, we report a long-term decline in the Beaufort Gyre (BG) strength during the Holocene, consistent with a decrease in summer insolation. Multi-centennial variability in BG circulation is consistent with fluctuations in solar irradiance. The Bering Strait inflow shows intensification during the middle Holocene, associated with sea-ice retreat and an increase in marine production in the Chukchi Sea, which is attributed to a weaker Aleutian Low.