Carbon-13 and Deuterium isotopic composition of atmospheric methane across Heinrich Stadial 4, and Dansgaard Oesgher Event 8, WAIS Divide Replicate Ice Core, Antarctica ...

This dataset includes ~60-year resolution measurements of the Carbon-13 and Deuterium isotopic Composition of Atmospheric Methane (δ13C-CH4 and δD-CH4, respectively) of gas bubbles from the WAIS Divide Replicate Ice Core. All measurements were made at the University of Bern Ice Core Laboratory (Bern...

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Bibliographic Details
Main Authors: Bauska, Thomas, Brook, Edward, Clark, Reid, Fischer, Hubertus, Iseli, Rene, Lee, James, Menking, Andy, Riddell-Young, Benjamin, Schmitt, Jochen
Format: Dataset
Language:English
Published: U.S. Antarctic Program (USAP) Data Center 2024
Subjects:
Greenhouse Gas
Methane
Abrupt Climate Change
Atmospheric Gases
Biogeochemical Cycles
Carbon Cycle
Cryosphere
Antarc*
Antarctica
ice core
Online Access:https://dx.doi.org/10.15784/601813
https://www.usap-dc.org/view/dataset/601813
Description
Summary:This dataset includes ~60-year resolution measurements of the Carbon-13 and Deuterium isotopic Composition of Atmospheric Methane (δ13C-CH4 and δD-CH4, respectively) of gas bubbles from the WAIS Divide Replicate Ice Core. All measurements were made at the University of Bern Ice Core Laboratory (Bern, Switzerland) using a new methane stable isotope analytical system. The data includes depth-adjacent replicate samples (separated by no more than 0.3m of depth). The data are displayed as a function of WAIS Divide Replicate Core depth and were corrected for gravitational and diffusional fractionation that occurs in the firn column according to Buizert et al., 2013. 1-sigma measurement uncertainty is also included and is determined from analytical uncertainty and uncertainties associated with diffusional and gravitational fractionation. Additional funding for this work was provided by the Swiss National Foundation, Awards #200020_172506 and #200020B_200328L. ...

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