Measurements of CO2 and CH4 concentrations in air in a polar ice core

• Published in: Journal of Glaciology
• Main Authors: Nakazawa, Takakiyo, Machida, Toshinobu, Esumi, Kenji, Tanaka, Masayuki, Fujii, Yoshiyuki, Aoki, Shuhji, Watanabe, Okitsugu
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1993
• Subjects: Mizuho; Mizuho Station; Yamato; Antarc*; Antarctica; ice core; Journal of Glaciology
• Online Access: http://dx.doi.org/10.1017/s0022143000015860; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000015860

Abstract Dry and wet air-extraction systems and precise analysis systems of the CO 2 and CH 4 concentrations for a polar ice core were developed to reconstruct their ancient levels. A dry-extraction system was capable of crushing an ice sample of 1000 g into fine powder within 2 min, and its air-ext...