WAIS Divide Deep ice core 0-68 ka WD2014 chronology ...

• Main Authors: Sigl, Michael, Buizert, Christo, Fudge, Tyler J, Winstrup, Mai, Cole-Dai, Jihong, McConnell, Joseph R, Ferris, David G, Rhodes, Rachael H, Taylor, Kendrick C, Welten, Kees C, Woodruff, Thomas E, Adolphi, Florian, Baggenstos, Daniel, Brook, Edward J, Caffee, Marc W, Clow, Gary D, Cheng, Hai, Cuffey, Kurt M, Dunbar, Nelia W, Edwards, Ross L, Edwards, Larry, Geng, Lei, Iverson, Nels, Koffman, Bess G, Layman, Larry, Markle, Bradley R, Maselli, Olivia J, McGwire, Kenneth C, Muscheler, Raimund, Nishiizumi, Kunihiko, Pasteris, Daniel R, Severinghaus, Jeffrey P, Sowers, Todd A, Steig, Eric J
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: annual-layer-counting; Antarctica; chronology; Greenland; ice-core; Methane; WAIS; DEPTH, ice/snow; Calendar age; Calendar age, standard error; Gas age; Age, error; Age, difference; Age, difference error; Ice drill; West Antarctic Ice Sheet Divide ice core project WAIS; Antarc*; Antarctic; Greenland ice core; ice core; Ice Sheet
• Online Access: https://dx.doi.org/10.1594/pangaea.902577; https://doi.pangaea.de/10.1594/PANGAEA.902577

The West Antarctic Ice Sheet (WAIS) Divide deep ice core WD2014 chronology, consisting of ice age, gas age, delta-age and uncertainties therein. The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation deep ice core that provides Antarctic climate records of the past ~68 ka at unprecedented temporal resolution.The upper 2850 m (back to 31.2 ka BP; Sigl et al., 2015, Sigl et al., 2016) have been dated using annual-layer counting based on counting of annual layers observed in the chemical, dust and electrical conductivity records. The measurements were interpreted manually and with the aid of two automated methods. We validated the chronology by comparing of the cosmogenic isotope records of 10Be from WAIS Divide and 14C for IntCal13. We demonstrated that over the Holocene WD2014 was consistently accurate to better than 0.5% of the age.The chronology for the deep part of the core (below 2850m; 67.8-31.2 ka BP; Buizert et al., 2015) is based on stratigraphic matching ... : Citing the timescales:for 0.2.4 ka BP use Sigl et al., (2015);for 2.4-31.2 ka use Sigl et al., (2016);for 31.2-68 ka BP use Buizert et al., (2015). ...