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Wu, Xiner; de Vernal, Anne; Allan, Estelle (2025): Mixed layer depth reconstructions based on dinocyst assemblage data for 16 Holocene records in the subpolar North Atlantic using the modern analogue technique and weighted averaging partial least squares [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.982394

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Published: 2025-06-16 • DOI registered: 2025-06-17

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Abstract:
Winter mixed layer depth (MLD) was reconstructed from 16 previously published records of dinocyst assemblage data using two different approaches: modern analogue technique (MAT) and weighted averaging partial least square (WAPLS) regression and calibration. The n = 1968 modern dinocyst database and the modern MLD climatology of 1981-2010 from the World Ocean Atlas 2018 were used as calibration dataset. The records cover the Holocene and are located in the present-day wintertime deep convection areas of the subpolar North Atlantic. The reconstructions of winter MLD were used to infer changes in the strength of wintertime deep convection during the Holocene. They also allow for comparisons with other proxy records and model simulations.
Keyword(s):
Dinocysts; Holocene; mixed-layer depth; Paleoceanographic proxies; reconstruction; subpolar North Atlantic
Supplement to:
Wu, Xiner; de Vernal, Anne; Allan, Estelle (2025): Migration of deep convection center in subpolar North Atlantic around 6 ka suggested by a dinocyst proxy of mixed layer depth. Paleoceanography and Paleoclimatology, 40(6), e2024PA004998, https://doi.org/10.1029/2024PA004998
Related to:
Wu, Xiner (2025): Mixed layer depth values for the n = 1968 modern dinocyst database [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.982265
Funding:
Fonds de Recherche du Québec – Nature et Technologies (FRQNT), grant/award no. 320994: FRQNT - Nature et technologies
Natural Sciences and Engineering Research Council (NSERC), grant/award no. DG/AdV: NSERC Discovery Grant
Coverage:
Median Latitude: 63.389504 * Median Longitude: -25.386689 * South-bound Latitude: 50.330000 * West-bound Longitude: -58.040000 * North-bound Latitude: 80.557667 * East-bound Longitude: 10.299333
Date/Time Start: 1984-09-15T00:00:00 * Date/Time End: 1999-08-01T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
16 datasets

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Datasets listed in this publication series

  1. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core DA12-11/2-GC01. https://doi.org/10.1594/PANGAEA.982613
  2. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core GIK23323-1. https://doi.org/10.1594/PANGAEA.982628
  3. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HM03-133-25. https://doi.org/10.1594/PANGAEA.982629
  4. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HU-84-030-21PC. https://doi.org/10.1594/PANGAEA.982638
  5. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HU90-013-013. https://doi.org/10.1594/PANGAEA.982637
  6. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HU91-045-072. https://doi.org/10.1594/PANGAEA.982639
  7. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HU91-045-094. https://doi.org/10.1594/PANGAEA.982640
  8. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HU2008-029-004. https://doi.org/10.1594/PANGAEA.982636
  9. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core M23352. https://doi.org/10.1594/PANGAEA.982630
  10. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core MD99-2227. https://doi.org/10.1594/PANGAEA.982632
  11. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core MD99-2254. https://doi.org/10.1594/PANGAEA.982633
  12. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core MSM5/5-712-2. https://doi.org/10.1594/PANGAEA.982634
  13. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core HU91-045-085TWC. https://doi.org/10.1594/PANGAEA.982644
  14. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core PS1247. https://doi.org/10.1594/PANGAEA.982642
  15. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core PS1842. https://doi.org/10.1594/PANGAEA.982641
  16. Wu, X; de Vernal, A; Allan, E (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core PS2863-1. https://doi.org/10.1594/PANGAEA.982643