Peterson, Carlye D; Lisiecki, Lorraine E (2018): Deglacial carbon cycle changes observed in a compilation of 127 benthic δ¹³C time series (20-6 ka) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.893008, Supplement to: Peterson, CD; Lisiecki, LE (2018): Deglacial carbon cycle changes observed in a compilation of 127 benthic δ¹³C time series (20 - 6 ka). Climate of the Past Discussions, 14, 1229-1252, https://doi.org/10.5194/cp-14-1229-2018
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Abstract:
We present a compilation of 127 time series δ¹³C records from Cibicides wuellerstorfi spanning the last deglaciation (20-6 ka) which is well-suited for reconstructing large-scale carbon cycle changes, especially for comparison with isotope-enabled carbon cycle models. The age models for the δ¹³C records are derived from regional planktic radiocarbon compilations (Stern and Lisiecki, 2014). The δ¹³C records were stacked in nine different regions and then combined using volume-weighted averages to create intermediate, deep, and global δ¹³C stacks. These benthic δ¹³C stacks are used to reconstruct changes in the size of the terrestrial biosphere and deep ocean carbon storage. The timing of change in global mean δ¹³C is interpreted to indicate terrestrial biosphere expansion from 19-6 ka. The δ¹³C gradient between the intermediate and deep ocean, which we interpret as a proxy for deep ocean carbon storage, matches the pattern of atmospheric CO₂ change observed in ice core records. The presence of signals associated with the terrestrial biosphere and atmospheric CO₂ indicates that the compiled δ¹³C records have sufficient spatial coverage and time resolution to accurately reconstruct large-scale carbon cycle changes during the glacial termination.
Further details:
Stern, Joseph V; Lisiecki, Lorraine E (2014): Termination 1 timing in radiocarbon-dated regional benthic δ18O stacks. Paleoceanography, 29(12), 1127-1142, https://doi.org/10.1002/2014PA002700
Coverage:
Median Latitude: 3.673433 * Median Longitude: -106.279150 * South-bound Latitude: -45.500000 * West-bound Longitude: 174.900000 * North-bound Latitude: 64.800000 * East-bound Longitude: -13.395748
Date/Time Start: 1963-04-05T00:00:00 * Date/Time End: 2005-06-22T03:28:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Peterson, CD; Lisiecki, LE (2018): Compilation of 127 benthic δ¹³C time series (20-6 ka). https://doi.org/10.1594/PANGAEA.893009
- Peterson, CD; Lisiecki, LE (2018): Metadata for a compilation of 127 benthic δ¹³C time series (20-6 ka). https://doi.org/10.1594/PANGAEA.893007