Two centuries of southwest Iceland annually-resolved marine temperature reconstructed from Arctica islandica shells.

ABSTRACT: Iceland's exposure to major ocean current pathways of the central North Atlantic makes it a useful location for developing long-term proxy records of past marine climate. Such records provide more detailed understanding of the full range of past variability which is necessary to improve predictions of future changes. We constructed a 225-year (1791-2015 CE) master shell growth chronology from 29 shells of Arctica islandica collected at 100 m water depth in southwest Iceland (Faxaflói). The growth chronology provides a robust age model for shell oxygen isotope (δ¹⁸O_shell) data produced at annual resolution for 251 years (1765-2015 CE). The temperature reconstruction derived from δ¹⁸O_shell shows coherence with May-October local surface tempe

SUBMITTER: Mette MJ 

PROVIDER: S-EPMC10695767 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature