The SP19 chronology for the South Pole Ice Core – Part 2: gas chronology, Δage, and smoothing of atmospheric records

Epifanio, Jenna A.; Brook, Edward J.; Buizert, Christo; Edwards, Jon S.; Sowers, Todd A.; Kahle, Emma C.; Severinghaus, Jeffrey P.; Steig, Eric J.; Winski, Dominic A.; Osterberg, Erich C.; Fudge, Tyler J.; Aydin, Murat; Hood, Ekaterina; Kalk, Michael; Kreutz, Karl J.; Ferris, David G.; Kennedy, Joshua A.

doi:https://doi.org/10.5194/cp-16-2431-2020

Articles | Volume 16, issue 6

https://doi.org/10.5194/cp-16-2431-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-16-2431-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 6

Research article

|

03 Dec 2020

Research article |

| 03 Dec 2020

The SP19 chronology for the South Pole Ice Core – Part 2: gas chronology, Δage, and smoothing of atmospheric records

Jenna A. Epifanio, Edward J. Brook, Christo Buizert, Jon S. Edwards, Todd A. Sowers, Emma C. Kahle, Jeffrey P. Severinghaus, Eric J. Steig, Dominic A. Winski, Erich C. Osterberg, Tyler J. Fudge, Murat Aydin, Ekaterina Hood, Michael Kalk, Karl J. Kreutz, David G. Ferris, and Joshua A. Kennedy

Supplement

https://doi.org/10.5194/cp-16-2431-2020-supplement

Data sets

South Pole ice core (SPC14) discrete methane data J. Epifanio, E. J. Brook, C. Buizert, J. S. Edwards, T. A. Sowers, E. C. Kahle, J. P. Severinghaus, E. J. Steig, D. A. Winski, E. C. Osterberg, T. J. Fudge, M. Aydin, E. Hood, M. Kalk, K. J. Kreutz, D. G. Ferris, and J. A. Kennedy https://doi.org/10.15784/601381

SP19 Gas Chronology J. Epifanio https://doi.org/10.15784/601380

South Pole Ice Core 52,000 Year SP19 Gas Age Chronology and Methane Data J. A. Epifanio, E. J. Brook, C. Buizert, J. S. Edwards, T. A Sowers, E. C. Kahle, J. P. Severinghaus, E. J. Steig, D. A. Winski, E. C. Osterberg, T. J. Fudge, M. Aydin, E. Hood, M. Kalk, K. J. Kreutz, D. G. Ferris, J. A. and Kennedy https://www.ncdc.noaa.gov/paleo-search/study/31532

Short summary

A new ice core drilled at the South Pole provides a 54 000-year paleo-environmental record including the composition of the past atmosphere. This paper describes the gas chronology for the South Pole ice core, based on a high-resolution methane record. The new gas chronology, in combination with the existing ice age scale from Winski et al. (2019), allows a model-independent reconstruction of the delta age record.