Banerjee, Asmita; Yeung, Laurence Y; Murray, Lee T; Tie, Xin; Tierney, Jessica E; LeGrande, Allegra N (2022): Ice core O2 clumped isotope data from the Last Glacial Maximum measured in Greenland Ice Sheet Project (GISP2-D) ice core [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.940250
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Abstract:
Laboratory O2 clumped-isotope data (as D36 values measured at Rice University) for air occluded in ice core GISP2-D spanning gas ages of 18000-21000 ky BP for the Last Glacial Maximum (LGM). Modeled atmospheric history for the LGM via outputs of the GISS-E2.1 driven and Data Assimilation (DAv2.0) driven chemical transport model incorporated into a 2-box model of the atmosphere.
Related to:
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
Source:
Seierstad, Inger K; Abbott, Peter M; Bigler, Matthias; Blunier, Thomas; Bourne, Anna J; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Johnsen, Sigfús Jóhann; Pedersen, Desirée S; Popp, Trevor J; Rasmussen, Sune Olander; Severinghaus, Jeffrey P; Svensson, Anders M; Vinther, Bo Møllesøe (2014): Consistently dated records from the Greenland GRIP, GISP2 and NGRIP ice cores for the past 104 ka reveal regional millennial-scale δ18O gradients with possible Heinrich event imprint. Quaternary Science Reviews, 106, 29-46, https://doi.org/10.1016/j.quascirev.2014.10.032
Severinghaus, Jeffrey P; Beaudette, Ross; Headly, Melissa A; Taylor, Kendrick C; Brook, Edward J (2009): Oxygen-18 of O2 Records the Impact of Abrupt Climate Change on the Terrestrial Biosphere. Science, 324(5933), 1431-1434, https://doi.org/10.1126/science.1169473
Project(s):
Greenland Ice Sheet Project 2 (GISP2)
Coverage:
Latitude: 72.588000 * Longitude: -38.457000
Minimum DEPTH, ice/snow: 1900.13 m * Maximum DEPTH, ice/snow: 1962.05 m
Event(s):
GISP2-D * Latitude: 72.588000 * Longitude: -38.457000 * Elevation Start: 3203.0 m * Elevation End: 0.0 m * Campaign: GISP * Basis: Sampling/drilling ice * Method/Device: Drilling/drill rig (DRILL) * Comment: The length of the 3-km borehole at the GISP2 site was measured by two completely independent geophysical logging systems, the University of Copenhagen system (UCPH) and the U.S. Geological Survey's temperature system (USGS). Both systems utilized steel logging cables. The depth calibration factor for the UCPH system was determined from the measured length of the GRIP ice core while the USGS system was calibrated using a fiberglass tape measure with a low coefficient of thermal expansion. The accuracy of the depth measurements for both systems is estimated to be 2-3 m at a depth of 3 km. Inclination/azimuth measurements from the UCPH logger have been used to calculate the true vertical depth of the borehole from the measured total slant length. UCPH/true vertical depth (m):3047.8 slant length (m):3056.5 USGS/true vertical depth (m):3047.9, slant length (m):3056.6
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Core | Core | Banerjee, Asmita | |||
| 2 | DEPTH, ice/snow | Depth ice/snow | m | Banerjee, Asmita | Geocode | |
| 3 | Gas age | Gas age | ka BP | Banerjee, Asmita | Age model, GICC05 | source dataset: doi:10.1016/j.quascirev.2014.10.032 |
| 4 | δ18O | δ18O | ‰ | Banerjee, Asmita | measured | |
| 5 | δ18O | δ18O | ‰ | Banerjee, Asmita | source dataset: doi:10.1126/science.1169473 | |
| 6 | Δ36, oxygen clumped isotope | Δ36 | ‰ | Banerjee, Asmita | measured | |
| 7 | Δ36, oxygen clumped isotope | Δ36 | ‰ | Banerjee, Asmita | Corrected after Yeung etal., 2012 | corrected |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
258 data points