Wörmer, Lars; Wendt, Jenny; Boehman, Brenna; Haug, Gerald H; Hinrichs, Kai-Uwe (2022): Seasonal SST reconstruction by the UK'37 proxy for the Younger Dryas-Holocene transition in sediments of the Cariaco Basin, sediment core MD03-2621 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.946440
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2022-07-19 • DOI registered: 2022-11-29
Abstract:
The UK'37 sea surface temperature (SST) proxy, based on the distribution of long-chain akenones, was measured via mass spectrometry imaging (MSI) at 100-µm resolution in a 60-cm section of the well-dated core MD03-2621 from the Cariaco Basin (10.6782, -64.9715). This section spans an age of ~ 11.9 to 11.2 kyr b2k and thus includes the Younger Dryas-Holocene transition. Proxy data from each micrometer-sized spot were assigned to the upwelling and non-upwelling season based on the color of the sediment in that spot. As a result, separate records for the upwelling and non-upwelling seasons could be obtained. In order to translate UK'37 values into SST, a correction factor to account for differences between MSI-based data and conventional UK'37 data was applied. SST was calculated with the BAYSPLINE model.
Keyword(s):
Supplement to:
Wörmer, Lars; Wendt, Jenny; Boehman, Brenna; Haug, Gerald H; Hinrichs, Kai-Uwe (2022): Deglacial increase of seasonal temperature variability in the tropical ocean. Nature, 612(7938), 88-91, https://doi.org/10.1038/s41586-022-05350-4
Project(s):
Funding:
European Research Council (ERC), grant/award no. 670115: Zooming into paleoenvironmental and biogeochemical processes through molecular imaging of biomarker distributions in sediments
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Latitude: 10.678200 * Longitude: -64.971500
Date/Time Start: 2003-05-13T11:43:00 * Date/Time End: 2003-05-13T11:43:00
Minimum Elevation: -847.0 m * Maximum Elevation: -847.0 m
Event(s):
MD03-2621 (MD032621) * Latitude: 10.678200 * Longitude: -64.971500 * Date/Time: 2003-05-13T11:43:00 * Elevation: -847.0 m * Recovery: 52.97 m * Location: Cariaco Basin * Campaign: MD132 (IMAGES XI - P.I.C.A.S.S.O.) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO) * Comment: tube length 59.05m
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Wörmer, Lars | Geocode – b2k | |
| 2 | Alkenone, unsaturation index UK'37 | UK'37 | Wörmer, Lars | Mass spectrometry imaging (MSI) | ||
| 3 | Alkenone, unsaturation index UK'37 | UK'37 | Wörmer, Lars | Corrected for the offset between MSI and conventional analyses | ||
| 4 | Sea surface temperature | SST | °C | Wörmer, Lars | Calculated from UK37 using the BAYSPLINE calibration | |
| 5 | Description | Description | Wörmer, Lars |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1133 data points