Articles | Volume 13, issue 12
Atmos. Meas. Tech., 13, 6703–6731, 2020
https://doi.org/10.5194/amt-13-6703-2020
Atmos. Meas. Tech., 13, 6703–6731, 2020
https://doi.org/10.5194/amt-13-6703-2020

Research article 15 Dec 2020

Research article | 15 Dec 2020

New technique for high-precision, simultaneous measurements of CH4, N2O and CO2 concentrations; isotopic and elemental ratios of N2, O2 and Ar; and total air content in ice cores by wet extraction

Ikumi Oyabu et al.

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Cited articles

Ahn, J., Brook, E. J., and Howell, K.: A high-precision method for measurement of paleoatmospheric CO2 in small polar ice samples, J. Glaciol., 55, 499–506, https://doi.org/10.3189/002214309788816731, 2009. 
Ahn, J., Brook, E. J., Mitchell, L., Rosen, J., McConnell, J. R., Taylor, K., Etheridge, D., and Rubino, M.: Atmospheric CO2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core, Global Biogeochem. Cy., 26, https://doi.org/10.1029/2011GB004247, 2012. 
Anklin, M., Barnola, J. M., Schwander, J., Stauffer, B., and Raynaud, D.: Processes Affecting the CO2 Concentrations Measured in Greenland Ice, Tellus B, 47, 461–470, https://doi.org/10.1034/j.1600-0889.47.issue4.6.x, 1995. 
Aoki, N., Ishidoya, S., Matsumoto, N., Watanabe, T., Shimosaka, T., and Murayama, S.: Preparation of primary standard mixtures for atmospheric oxygen measurements with less than 1 µmol mol−1 uncertainty for oxygen molar fractions, Atmos. Meas. Tech., 12, 2631–2646, https://doi.org/10.5194/amt-12-2631-2019, 2019. 
Aoki, S., Nakazawa, T., Murayama, S., and Kawaguchi, S.: Measurements of atmospheric methane at the Japanese Antarctic Station, Syowa, Tellus, 44, 273–281, https://doi.org/10.3402/tellusb.v44i4.15455, 1992. 
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Short summary
Air in polar ice cores provides information on past atmosphere and climate. We present a new method for simultaneously measuring eight gases (CH4, N2O and CO2 concentrations; isotopic ratios of N2 and O2; elemental ratios between N2, O2 and Ar; and total air content) from single ice-core samples with high precision.