Wu, Xiner; de Vernal, Anne; Allan, Estelle (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core MD99-2254 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982633, In: Wu, X et al. (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
Abstract:
Winter mixed layer depth (MLD) was reconstructed from the dinocyst assemblage data of sediment core MD99-2254 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.
Keyword(s):
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:
Solignac, Sandrine; de Vernal, Anne; Hillaire-Marcel, Claude (2004): Holocene sea-surface conditions in the North Atlantic—contrasted trends and regimes in the western and eastern sectors (Labrador Sea vs. Iceland Basin). Quaternary Science Reviews, 23(3-4), 319-334, https://doi.org/10.1016/j.quascirev.2003.06.003
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:
Latitude: 56.796333 * Longitude: -30.664333
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum Elevation: -2440.0 m * Maximum Elevation: -2440.0 m
Event(s):
MD99-2254 (MD54) * Latitude: 56.796333 * Longitude: -30.664333 * Date/Time: 1999-08-01T00:00:00 * Elevation: -2440.0 m * Recovery: 36.21 m * Location: East Bight Fracture Zone * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Allan, Estelle | Geocode | |
| 2 | Mixed layer depth | MLD | m | Wu, Xiner | Modern analogue technique (MAT) | MAT |
| 3 | Mixed layer depth | MLD | m | Wu, Xiner | Weighted averaging partial least squares (WA-PLS) regression | WAPLS regression and calibration |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
86 data points