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Bibliographic Record
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- Material Type
- 文書・図像類
- Author/Editor
- 藤田, 耕史飯塚, 芳徳原, 圭一郎的場, 澄人平沢, 尚彦本山, 秀明Fujita, KIizuka, YHara, KMatoba, SHirasawa, NMotoyama, H
- Author Heading
- Publication Date
- 2013-11-14
- Publication Date (W3CDTF)
- 2013-11-14
- Alternative Title
- 南極内陸における大気・雪面相互作用の理解に向けて
- Text Language Code
- eng
- Target Audience
- 一般
- Note (General)
- Although the East Antarctica has been believed to be stable against the global warming, influences of the warming, sensitive response of ice-streams or melt-refreeze footprint at high elevation were recently reported. Ice-core studies have provided perspective not only on the past, but also on future climate change. Many uncertainties still remain in the climate proxies because some processes are unknown how water stable isotopes and aerosol particles were deposited, varied and preserved in the ice.Aerosol particles in snow and ice are useful proxies of past-atmospheric environment. We have recently revealed that sulfate salts flux is correlated with the stable isotope ratio during recent glacial-interglacial cycle. Water stable isotopes are the most fundamental proxies of past-temperature. We have recently revealed that the water stable isotopes in inland Antarctica should have been altered from the original precipitated ones by large variability of accumulation rates in the very arid environment.Through the phase IX of the Japanese Antarctic Research Project (2016-2022), we propose an integrated observation to understand the interactions between atmosphere and snow surface in inland Antarctica. In particular we focus on the alternation processes of water stable isotopes and aerosol particles after their deposition. We will conduct samplings of aerosols and shallow snow pits through the traverse in inland Antarctica in several summer seasons. In addition, we prepare for the near-future overwintering at the new Dome Fuji Station because the processes during winter are totally equivocal. Our study will bridge a gap between the atmospheric transports and the ice-core paleoclimate.第4回極域科学シンポジウム特別セッション：[S] 南極研究の将来展望―第Ⅸ期6か年計画策定に向けて11月14日（木） 国立極地研究所 ２階大会議室