New technique for high-precision, simultaneous measurements of CH 4 , N 2 O and CO 2 concentrations; isotopic and elemental ratios of N 2 , O 2 and Ar; and total air content in ice cores by wet extraction

• Published in: Atmospheric Measurement Techniques
• Main Authors: I. Oyabu, K. Kawamura, K. Kitamura, R. Dallmayr, A. Kitamura, C. Sawada, J. P. Severinghaus, R. Beaudette, A. Orsi, S. Sugawara, S. Ishidoya, D. Dahl-Jensen, K. Goto-Azuma, S. Aoki, T. Nakazawa
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2020
• Subjects: Environmental engineering; TA170-171; Earthwork. Foundations; TA715-787; Dome Fuji; ice core
• Online Access: https://doi.org/10.5194/amt-13-6703-2020; https://doaj.org/article/1245e4bff01c47058f49d1749e5ad518

Air in polar ice cores provides unique information on past climatic and atmospheric changes. We developed a new method combining wet extraction, gas chromatography and mass spectrometry for high-precision, simultaneous measurements of eight air components ( CH 4 , N 2 O and CO 2 concentrations; δ 15...