Banerjee, Asmita; Yan, Yuzhen; Yeung, Laurence Y (2025): Clumped isotopic composition of oxygen in WDC06A ice core 8-18ka [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974600
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Published: 2025-01-23 • DOI registered: 2025-02-21
Abstract:
Laboratory O2 clumped-isotopic composition data (as Δ36 values) for air occluded in ice core spanning gas ages of 8000-18000 ky BP. O2 clumped isotopic composition data was generated between 2017-2022 at Rice University, Houston, TX, using a Nu Perspective Isotope Ratio Mass Spectrometer (IRMS). Reported data was measured in an Antarctic ice core: West Antarctic Ice Sheet Divide Ice Core (WDC06A) . The chronology and gas ages for the core were obtained from Sigl et al., 2016 (doi:10.5194/cp-12-769-2016) and Buizert et al., 2015 (doi:10.5194/cp-11-153-2015).
In addition to O2 clumped isotope data, measured δ18Ο data are also reported. Gas loss corrections to generated Δ36 data are made using previously reported raw δ18O data in Seltzer et al., 2017 (doi:10.5194/cp-13-1323-2017) and established gas loss corrections in Yeung et al., 2012 and Banerjee et al. 2022.
Source:
Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015
Seltzer, Alan; Ng, Jessica; Aeschbach, Werner; Kipfer, Rolf; Kulongoski, Justin T; Severinghaus, Jeffrey P; Stute, Martin (2021): Widespread six degrees Celsius cooling on land during the Last Glacial Maximum. Nature, https://doi.org/10.1038/s41586-021-03467-6
Sigl, Michael; Fudge, Tyler J; Winstrup, Mai; Cole-Dai, Jihong; Ferris, David G; McConnell, Joseph R; Taylor, Kendrick C; Welten, Kees C; Woodruff, Thomas E; Adolphi, Florian; Bisiaux, Marion M; Brook, Edward J; Buizert, Christo; Caffee, Marc W; Dunbar, Nelia W; Edwards, Ross L; Geng, Lei; Iverson, Nels; Koffman, Bess G; Layman, Lawrence; Maselli, Olivia J; McGwire, Kenneth C; Muscheler, Raimund; Nishiizumi, Kunihiko; Pasteris, Daniel R; Rhodes, Rachael H; Sowers, Todd A (2016): The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP). Climate of the Past, 12(3), 769-786, https://doi.org/10.5194/cp-12-769-2016
References:
Banerjee, Asmita; Yeung, Laurence Y; Murray, Lee T; Tie, Xin; Tierney, Jessica E; LeGrande, Allegra N (2022): Clumped-Isotope Constraint on Upper-Tropospheric Cooling During the Last Glacial Maximum. AGU Advances, 3(4), https://doi.org/10.1029/2022AV000688
Yeung, Laurence Y; Young, Edward D; Schauble, Edwin A (2012): Measurements of 18 O 18 O and 17 O 18 O in the atmosphere and the role of isotope-exchange reactions. Journal of Geophysical Research, 117(D18), 2012JD017992, https://doi.org/10.1029/2012JD017992
Funding:
National Science Foundation (NSF), grant/award no. AGS-2002414: P2C2-Interrogating the Free Troposphere during the Last Deglaciation
National Science Foundation (NSF), grant/award no. AGS-2002422: P2C2-Interrogating the Free Troposphere during the Last Deglaciation
Coverage:
Latitude: -79.467630 * Longitude: -112.086480
Date/Time Start: 2006-12-09T00:00:00 * Date/Time End: 2006-12-09T00:00:00
Minimum DEPTH, ice/snow: 1648.9240 m * Maximum DEPTH, ice/snow: 2457.5380 m
Event(s):
WDC06A (WAIS Divide Ice Core) * Latitude: -79.467630 * Longitude: -112.086480 * Date/Time: 2006-12-09T00:00:00 * Elevation: 1766.0 m * Location: Antarctica, west * Method/Device: Ice drill (ICEDRILL) * Comment: Core diameter: 10 cm; Top depth: 0 m; Bottom depth: 114 m; Deep core
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Core | Core | Banerjee, Asmita | |||
| 2 | Sample code/label | Sample label | Banerjee, Asmita | tube | ||
| 3 | Depth, ice/snow, top/minimum | Depth ice/snow top | m | Banerjee, Asmita | ||
| 4 | Depth, ice/snow, bottom/maximum | Depth ice/snow bot | m | Banerjee, Asmita | ||
| 5 | DEPTH, ice/snow | Depth ice/snow | m | Banerjee, Asmita | Geocode | |
| 6 | Gas age | Gas age | ka BP | Banerjee, Asmita | source dataset doi:10.5194/cp-12-769-2016 and doi:10.5194/cp-11-153-2015 | |
| 7 | δ18O | δ18O | ‰ | Banerjee, Asmita | measured; replicate 1 | |
| 8 | Δ36, oxygen clumped isotope | Δ36 | ‰ | Banerjee, Asmita | measured; replicate 1 | |
| 9 | δ18O | δ18O | ‰ | Banerjee, Asmita | measured; replicate 2 | |
| 10 | Δ36, oxygen clumped isotope | Δ36 | ‰ | Banerjee, Asmita | measured; replicate 2 | |
| 11 | δ18O | δ18O | ‰ | Banerjee, Asmita | measured; replicate 3 | |
| 12 | Δ36, oxygen clumped isotope | Δ36 | ‰ | Banerjee, Asmita | measured; replicate 3 | |
| 13 | δ18O | δ18O | ‰ | Banerjee, Asmita | source dataset: doi:10.1038/s41586-021-03467-6 | |
| 14 | Remote sensing reflectance at 387.5 nm | Rrs_387.5 | 1/sr | Banerjee, Asmita | Corrected after Yeung etal., 2012 | corrected using the equation Δ36,corr = Δ36,meas + (δ18Omeas - δ18Oreported)*0.0085; replicate 1 |
| 15 | Remote sensing reflectance at 387.5 nm | Rrs_387.5 | 1/sr | Banerjee, Asmita | Corrected after Yeung etal., 2012 | corrected using the equation Δ36,corr = Δ36,meas + (δ18Omeas - δ18Oreported)*0.0085; replicate 2 |
| 16 | Remote sensing reflectance at 387.5 nm | Rrs_387.5 | 1/sr | Banerjee, Asmita | Corrected after Yeung etal., 2012 | corrected using the equation Δ36,corr = Δ36,meas + (δ18Omeas - δ18Oreported)*0.0085; replicate 3 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1368 data points