Wu, Xiner; de Vernal, Anne; Allan, Estelle (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core PS1247 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982642, 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 PS1247 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):
Related to:
Van Nieuwenhove, Nicolas; Baumann, Astrid; Matthiessen, Jens; Bonnet, Sophie; de Vernal, Anne (2016): Sea surface conditions in the southern Nordic Seas during the Holocene based on dinoflagellate cyst assemblages. The Holocene, 26(5), 722-735, https://doi.org/10.1177/0959683615618258
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
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
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: 69.491300 * Longitude: -17.115800
Date/Time Start: 1984-09-15T00:00:00 * Date/Time End: 1984-09-15T00:00:00
Minimum Elevation: -1388.0 m * Maximum Elevation: -1388.0 m
Event(s):
PS1247-1 (GIK23247-1 PS05/452; PS47) * Latitude: 69.491300 * Longitude: -17.115800 * Date/Time: 1984-09-15T00:00:00 * Elevation: -1388.0 m * Penetration: 12 m * Recovery: 8.75 m * Location: Iceland Sea * Campaign: ARK-II/5 (PS05) * Basis: Polarstern * Method/Device: Gravity corer (Kiel type) (SL) * Comment: 9 core sections: 0-1, 1-2, 2-3, 3-3.88, 3.88-4.88, 4.88-5.88, 5.88-6.88, 6.88-7.88, 7.88-8.75 m
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:
42 data points
Data
| 1 Age [ka BP] | 2 MLD [m] (MAT, Modern analogue techniqu...) | 3 MLD [m] (WAPLS regression and calibrat...) |
|---|---|---|
| 1.49206 | 254.561 | 344.670 |
| 1.87550 | 357.513 | 324.823 |
| 2.38675 | 344.703 | 356.113 |
| 2.89800 | 328.487 | 297.072 |
| 3.40925 | 352.494 | 285.969 |
| 3.92050 | 331.815 | 259.432 |
| 4.43175 | 333.932 | 314.252 |
| 4.94300 | 310.832 | 286.142 |
| 5.15088 | 330.403 | 291.730 |
| 5.35875 | 293.212 | 252.282 |
| 5.56663 | 341.662 | 261.067 |
| 5.77450 | 344.900 | 265.090 |
| 5.98238 | 314.758 | 292.718 |
| 6.19025 | 316.123 | 358.545 |
| 6.39813 | 274.886 | 348.161 |
| 6.60600 | 380.607 | 387.601 |
| 7.12911 | 269.546 | 440.740 |
| 7.65222 | 253.461 | 379.923 |
| 8.17533 | 253.342 | 390.839 |
| 9.22156 | 135.198 | 312.359 |
| 10.26780 | 200.537 | 349.583 |