Preliminary investigation of palaeoclimate signals recorded in the ice core from Dome Fuji station, east Dronning Maud Land, Antarctica

Shuhji Aoki, Nobuhiko Azuma, Yoshiyuki Fujii, Shuji Fujita, Teruo Furukawa, Takeo Hondoh, Kokichi Kamiyama, Hideaki Motoyama, Masayoshi Nakawo, Takakiyo Nakazawa, Hideki Narita, Kazuhide Satow, Hitoshi Shoji, Okitsugu Watanabe

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

An ice core to 2503.52 m depth was drilled during 1995 and 1996 at 77°19'01″S, 39°42'12″ E (3810 m a.s.l.), at the summit of Dome Fuji, East Antarctica. Climatic and environmental conditions were observed at the coring site throughout the 2 years of wintering operation. Meteorological and glaciological observations made clear the present surface processes of mass balance. The chemistry of the surface snow layers was observed for investigation of the atmospheric environment reflected in snow deposits. Core analyses have been carried out in Japan. Permeability and density measurements show that air bubbles are completely closed off by densification processes at about 98 m depth. The vertical profile of δ18O suggests that the core covers two warm stages and one cold stage from the surface down to 1800 m depth. The transition from the cold to the warm period affects the vertical distribution of ice-crystal size. The chemical constituents in the ice core show large differences between warm and cold periods. A depth-age relationship is presented and a study made of palaeoclimatic and core signals.

Original languageEnglish
Pages (from-to)338-342
Number of pages5
JournalAnnals of Glaciology
Volume27
DOIs
Publication statusPublished - 1998

ASJC Scopus subject areas

  • Earth-Surface Processes

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