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Sea ice-ocean coupling during Heinrich Stadials in the Atlantic-Arctic gateway.

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  • معلومة اضافية
    • المصدر:
      Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: PubMed not MEDLINE; MEDLINE
    • بيانات النشر:
      Original Publication: London : Nature Publishing Group, copyright 2011-
    • نبذة مختصرة :
      The variability of Arctic sea-ice during abrupt stadial-interstadial shifts in the last glacial period remain poorly understood. Here, we investigated the millennial-scale relationship, with a focus on Heinrich Stadials (HS), between sea-ice cover and bottom water temperature (BWT) during Marine Isotope Stages (MIS) 3 and 2 (64-13 ka) in the Fram Strait using new molecular sea ice biomarker data and published benthic foraminiferal BWT records. Widespread spring sea-ice cover (SpSIC) dominated the studied interval, especially in mid-late MIS 3 (45-29 ka). Yet, warm interstadials were characterized by relatively more open-ocean conditions compared to cold stadials. At the transition between a HS and the subsequent interstadial, sea ice was tightly linked to BWT with rapid reductions in SpSIC coinciding with lower BWT at the end of HS. The relative timing of the events, especially during HS 1, points to ocean warming as the key controlling factor for sea ice reduction at millennial timescales.
      (© 2024. The Author(s).)
    • Comments:
      Erratum in: Sci Rep. 2024 Feb 14;14(1):3743. doi: 10.1038/s41598-024-54224-4. (PMID: 38355693)
    • References:
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    • Grant Information:
      223259 Norges Forskningsråd; 223259 Norges Forskningsråd; 223259 Norges Forskningsråd; 223259 Norges Forskningsråd; 223259 Norges Forskningsråd; 223259 Norges Forskningsråd; A31720 Tromsø Forskningsstiftelse; A31720 Tromsø Forskningsstiftelse; NE/W006243/1 Natural Environment Research Council; 332635 Norges Forskningsråd
    • الموضوع:
      Date Created: 20240111 Latest Revision: 20240319
    • الموضوع:
      20250114
    • الرقم المعرف:
      PMC10784495
    • الرقم المعرف:
      10.1038/s41598-024-51532-7
    • الرقم المعرف:
      38212406