Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Yu, Jimin; Oppo, Delia W; Jin, Zhangdong; Lacerra, Matthew; Ji, Xuan; Umling, Natalie E; Lund, David C; McCave, I Nick; Menviel, Laurie; Shao, Jun; Xu, Chen (2022): Age model and air-sea CO2 exchange signatures reconstructions from sediment cores NEAP 4K and GGC90 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.942299

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
This data set contains the age model and air-sea CO2 exchange tracer ([CO32-]as) of deep water core NEAP 4K and Intermediate water core GGC90. Seawater [CO32-]as is calculated following the approach in Yu et al. (2019). The Seawater [CO32-]as reconstructions at GGC90 are obtained based on [CO32-] and [PO43-] from Lacerra et al. (2019) and Umling et al. (2019), but these data have not yet been used to infer air-sea CO2 exchange histories. Importantly, building upon previous work (Lund et al., 2015), 23 new radiocarbon dates substantially improve the GGC90 age model. We present new deep-water [CO32-] and [PO43-] reconstructions at NEAP 4K using benthic foraminiferal B/Ca and Cd/Ca, respectively. The age model for NEAP 4K is based on 4 new and 13 published radiocarbon dates (Hall et al., 2004) and new Neogloboquadrina pachyderma (sinistral) coiling ratios. Based on the novel approach to reconstruct upper Atlantic air-sea CO2 exchange signatures, we provide evidence for a net release of CO2 via the Atlantic sector of the Southern Ocean, which contributes to the millennial atmospheric CO2 rise during Heinrich Stadial 1.
Supplement to:
Yu, Jimin; Oppo, Delia W; Jin, Zhangdong; Lacerra, Matthew; Ji, Xuan; Umling, N E; Lund, David C; McCave, I Nick; Menviel, Laurie; Shao, Jun; Xu, Chen (2022): Millennial and centennial CO2 release from the Southern Ocean during the last deglaciation. Nature Geoscience, https://doi.org/10.1038/s41561-022-00910-9
Coverage:
Median Latitude: 22.010278 * Median Longitude: -34.154111 * South-bound Latitude: -27.350000 * West-bound Longitude: -46.631500 * North-bound Latitude: 61.498500 * East-bound Longitude: -24.172200
Date/Time Start: 1998-10-23T00:00:00 * Date/Time End: 1998-10-23T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
9 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this bundled publication

  1. Yu, J; Oppo, DW; Jin, Z et al. (2022): Deep water reconstructions in core NEAP 4K (Supplementary Table 1). https://doi.org/10.1594/PANGAEA.942183
  2. Yu, J; Oppo, DW; Jin, Z et al. (2022): H. elegans Cd/Ca and reconstructed seawater Cd in core NEAP 4K (Supplementary Table 2). https://doi.org/10.1594/PANGAEA.942186
  3. Yu, J; Oppo, DW; Jin, Z et al. (2022): Coiling ratio of N. pachyderma (s) in core NEAP 4K (Supplementary Table 3). https://doi.org/10.1594/PANGAEA.942167
  4. Yu, J; Oppo, DW; Jin, Z et al. (2022): Planktnoic 14C dates and calculated calendar ages in core NEAP 4K (Supplementary Table 4). https://doi.org/10.1594/PANGAEA.942206
  5. Yu, J; Oppo, DW; Jin, Z et al. (2022): Age model control points used for core NEAP 4K (Supplementary Table 5). https://doi.org/10.1594/PANGAEA.942171
  6. Yu, J; Oppo, DW; Jin, Z et al. (2022): Intermediate water reconstructions in core GGC90 (Supplementary Table 6). https://doi.org/10.1594/PANGAEA.942207
  7. Yu, J; Oppo, DW; Jin, Z et al. (2022): Planktonic 14C dates and calculated calendar ages in core GGC90 (Supplementary Table 7). https://doi.org/10.1594/PANGAEA.942225
  8. Yu, J; Oppo, DW; Jin, Z et al. (2022): GGC90 benthic 14C dates and calculated calendar ages, which strenthen the age model based on planktonic dates (Supplementary Table 8). https://doi.org/10.1594/PANGAEA.942298
  9. Yu, J; Oppo, DW; Jin, Z et al. (2022): Age model controlling dates used for core GGC90 (Supplementary Table 9). https://doi.org/10.1594/PANGAEA.942181