JpGU-AGU Joint Meeting 2017

Presentation information

[EJ] Oral

A (Atmospheric and Hydrospheric Sciences) » A-CC Cryospheric Sciences & Cold District Environment

[A-CC37] [EJ] Ice cores and past environmental changes

Tue. May 23, 2017 3:30 PM - 5:00 PM A08 (Tokyo Bay Makuhari Hall)

convener:Kenji Kawamura(National Institute of Polar Research, Research Organization of Information and Systems), Nozomu Takeuchi(Chiba University), Ayako Abe-Ouchi(Atmosphere and Ocean Research Institute, The University of Tokyo), Chairperson:Akane Tsushima(Research Institute for Humanity and Nature)

4:15 PM - 4:30 PM

[ACC37-14] High resolution analyses of the Dome Fuji deep ice-core using a Continuous Flow Analysis (CFA) System

*Kumiko Goto-Azuma1,2, Motohiro Hirabayashi1, Jun Ogata1, Kyotaro Kitamura1, Kenji Kawamura1,2, Yoshimi Ogawa-Tsukagawa1, Dallymayr Remi1, Fumio Nakazawa1,2, Kaori Fukuda1, Miho Arai3, Shuji Fujita1,2, Hideaki Motoyama1,2 (1.National Institute of Polar Research, 2.SOKENDAI, 3.Yamagata University)

Keywords:CFA analyses, Deep ice core, Dome Fuji, Antarctica

We have been developing a Continuous Flow Analysis (CFA) system at the National Institute of Polar Research, Japan for high resolution analyses of ice cores, especially the deep ice core drilled at Dome Fuji, Antarctica. The CFA system consists of a melting unit and a detection unit. The detection unit consists of two parts, one for melt water analyses and the other for gas (currently methane) analyses. The melt water is analyzed for stable isotopes of water, electric conductivity, solid particles, black carbon and elements (currently Na, K, Mg, Ca, Al and Fe). Part of the melt water is collected in sample vials with fraction collectors. Here we report the results of various tests to evaluate the CFA system. We also present the first results obtained from the Dome Fuji deep ice-core.