Crosta, Xavier; Civel-Mazens, Matthieu; Cortese, Giuseppe (2021): Diatom-based sea-surface temperatures over the last 40 kyrs in sediment core MD11-3353 off Kerguelen Island, Southern Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930901
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Abstract:
Diatom census counts were used to quantitatively estimate summer sea-surface temperatures (SST) over the last 40,000 years in core MD11-3353, collected in 2011 on board the R.V. Marion Dusfresne west 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 Thöle et al. (2019).
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:
Crosta, Xavier; Shukla, Sunil; Ther, Olivier; Ikehara, Minoru; Yamane, Masako; Yokoyama, Yusuke (2020): Last Abundant Appearance Datum of Hemidiscus karstenii driven by climate change. Marine Micropaleontology, 157, 101861, https://doi.org/10.1016/j.marmicro.2020.101861
Thöle, Lena M; Amsler, Helen Eri; Moretti, Simone; Auderset, Alexandra; Gilgannon, James; Lippold, Jörg; Vogel, Hendrik; Crosta, Xavier; Mazaud, Alain; Michel, Elisabeth; Martínez-García, Alfredo; Jaccard, Samuel L (2019): Glacial-interglacial dust and export production records from the Southern Indian Ocean. Earth and Planetary Science Letters, 525, 115716, https://doi.org/10.1016/j.epsl.2019.115716
Coverage:
Latitude: -50.567000 * Longitude: 68.385000
Date/Time Start: 2011-01-30T00:00:00 * Date/Time End: 2011-01-30T00:00:00
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 3.7 m
Event(s):
MD11-3353 * Latitude: -50.567000 * Longitude: 68.385000 * Date/Time: 2011-01-30T00:00:00 * Elevation: -1568.0 m * Campaign: MD185 (INDIEN SUD 2) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer II (CALYPSO2)
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 | Age, calibrated | Geocode – cal ka BP |
| 3 | Sea surface temperature, summer | SST sum | °C | Crosta, Xavier | Modern analog technique (MAT) | Root Mean Square Error of Prediction of 1 °C |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
38 data points