Köseoğlu, Denizcan; Belt, Simon T; Smik, Lukas; Yao, Haoyi; Panieri, Giuliana; Knies, Jochen (2017): HBI concentrations and classification tree model predictions of sea ice conditions for surface sediments and downcore records in the Barents Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.881637, Supplement to: Köseoğlu, D et al. (2018): Complementary biomarker-based methods for characterising Arctic sea ice conditions: A case study comparison between multivariate analysis and the PIP25 index. Geochimica et Cosmochimica Acta, 222, 406-420, https://doi.org/10.1016/j.gca.2017.11.001
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Abstract:
We investigated the potential for classification tree (CT) models to provide a further approach to paleo Arctic sea ice reconstruction through analysis of a suite of six highly branched isoprenoid (HBI) biomarkers in 198 surface sediments from the Barents Sea. The four CT models representing modern sea ice conditions were then applied to four downcore records within the study area (cores BASICC 1, 8, 43, and core MSM5/5-712-1) in order to reconstruct sea ice conditions over the last 300 years. The current dataset includes the absolute HBI concentrations in all sediment samples (ng/g dry sed.), as well as CT model outcomes for all samples, which were classified as having experienced marginal, intermediate, or extensive overlying sea ice cover (further details are available in the manuscript associated with these data).
Coverage:
Median Latitude: 73.475779 * Median Longitude: 22.370510 * South-bound Latitude: 62.890000 * West-bound Longitude: 4.300000 * North-bound Latitude: 81.390000 * East-bound Longitude: 45.737833
Date/Time Start: 1991-06-23T16:22:00 * Date/Time End: 2007-08-04T09:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Köseoğlu, D; Belt, ST; Smik, L et al. (2017): (Table A.2) HBI biomarker concentrations and PI(III)P25 indices, and PI(III)P25 spring sea ice concentrations of sediment cores from the Barents Sea. https://doi.org/10.1594/PANGAEA.881636
- Köseoğlu, D; Belt, ST; Smik, L et al. (2017): (Table A.1) Locations, satellite-derived spring sea ice concentrations (SpSIC; April-June, 1988-2007) and absolute HBI biomarker concentrations of surface sediments in the Barents Sea. https://doi.org/10.1594/PANGAEA.881635