Learning from the past: Impact of the Arctic Oscillation on sea ice and marine productivity off northwest Greenland over the last 9,000 years.

ABSTRACT: Climate warming is rapidly reshaping the Arctic cryosphere and ocean conditions, with consequences for sea ice and pelagic productivity patterns affecting the entire marine food web. To predict how ongoing changes will impact Arctic marine ecosystems, concerted effort from various disciplines is required. Here, we contribute multi-decadal reconstructions of changes in diatom production and sea-ice conditions in relation to Holocene climate and ocean conditions off northwest Greenland. Our multiproxy study includes diatoms, sea-ice biomarkers (IP₂₅ and HBI III) and geochemical tracers (TOC [total organic carbon], TOC:TN [total nitrogen], δ¹³ C, δ¹⁵ N) from a sediment core record spanning the last c. 9,000 years. Our results suggest that the balance between t

SUBMITTER: Limoges A 

PROVIDER: S-EPMC7756419 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature