AIR EXTRACTION SYSTEMS FOR ICE CORE AND CO_2 AND CH_4 CONCENTRATIONS IN THE PAST ATMOSPHERE

• Main Authors: ナカザワ タカキヨ, マチダ トシノブ, エスミ ケンジ, タナカ マサユキ, フジイ ヨシユキ, アオキ シュンジ, ワタナベ オキツグ, Takakiyo NAKAZAWA, Toshinobu MACHIDA, Kenji ESUMI, Masayuki TANAKA, Yoshiyuki FUJII, Shuhji AOKI, Okitsugu WATANABE
• Format: Report
• Language: English
• Published: ABSTRACT 1992
• Subjects: Antarctic; Mizuho; Yamato; Mizuho Station; Antarc*; ice core; Polar meteorology and glaciology; Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3716; http://id.nii.ac.jp/1291/00003716/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3716&item_no=1&attribute_id=18&file_no=1

Dry and melt extraction systems have been developed to determine respectively the CO_2 and CH_4 concentrations of ancient air trapped in the polar ice core. The day extraction system was confirmed to be capable of crushing a core sample of 1kg to fine powder within 2 min, and its air extraction effi...