Crosta, Xavier; Civel-Mazens, Matthieu; Cortese, Giuseppe: Diatom-based sea-surface temperatures over the last 40 kyrs in core MD12-3396CQ northeast of Kerguelen Island, Southern Ocean [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.932000 (dataset in review)
Abstract:
Diatom census counts were used to quantitatively estimate summer sea-surface temperatures (SST) over the last 40,000 years in core MD12-3396CQ, collected in 2012 on board the R.V. Marion Dusfresne northeast of Kerguelen Island, Southern Ocean. The transfer function used to reconstruct summer (Janunary to March) SST is the Modern Analog Technique that here uses 249 surface sediment samples (modern analogs), the relative abundances of 32 diatom species and the chord distance to select the five most similar modern analogs (Crosta et al., 2020). This method yields a root mean square error of prediction of ~1 °C. The core chronology is detailed in Gottschalk et al. (2020).
Keyword(s):
Related to:
Civel-Mazens, Matthieu; Crosta, Xavier; Cortese, Giuseppe; Michel, Elisabeth; Mazaud, Alain; Ther, Olivier; Ikehara, Minoru; Itaki, Takuya (2021): Impact of the Agulhas Return Current on the oceanography of the Kerguelen Plateau region, Southern Ocean, over the last 40 kyrs. Quaternary Science Reviews, 251, 106711, https://doi.org/10.1016/j.quascirev.2020.106711
Further details:
Gottschalk, Julia; Michel, Elisabeth; Thöle, Lena M; Studer, Anja S; Hasenfratz, Adam P; Schmid, Nicole; Butzin, Martin; Mazaud, Alain; Martínez-García, Alfredo; Szidat, Sönke; Jaccard, Samuel L (2020): Glacial heterogeneity in Southern Ocean carbon storage abated by fast South Indian deglacial carbon release. Nature Communications, 11(1), 6192, https://doi.org/10.1038/s41467-020-20034-1
Coverage:
Latitude: -47.731330 * Longitude: 86.695170
Date/Time Start: 2012-02-13T00:00:00 * Date/Time End: 2012-02-13T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 8.57 m
Event(s):
MD12-3396Cq (Station 6, MD189-3396) * Latitude: -47.731330 * Longitude: 86.695170 * Date/Time: 2012-02-13T00:00:00 * Elevation: -3615.0 m * Recovery: 8.59 m * Campaign: MD189 (35MF20120125, OISO_21, INDIEN SUD 2) * Basis: Marion Dufresne (1995) * Method/Device: Calypso square corer (CASQ) * Comment: Kasten corer sice 25 cm x 25 cm.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Crosta, Xavier | Geocode | |
| 2 | AGE | Age | ka BP | Crosta, Xavier | Geocode | |
| 3 | Sea surface temperature, summer | SST sum | °C | Crosta, Xavier | Modern analog technique (MAT) | Root Mean Square Error of Prediction of 1.5 °C |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
216 data points