[A-CC38] アイスコアと古環境モデリング

[ACC38-06] Fine-Resolution Radar Measurements for Ice-Core Drilling Site identification Near Dome-Fuji

★Invited Papers

*Fernando Rodriguez Morales^1,2、David Braaten^1,2、John Paden^1,2、Prasad Gogineni、Ryan Taylor、Ayako Abe-Ouchi、Shuji Fujita、Kenji Kawamura、Shun Tsutaki、Brice Van Liefferinge、Kenichi Matsuoka (1.University of Kansas、2.Center for Remote Sensing of Ice Sheets)

キーワード：Oldest Ice , Radio Echo Sounding

As a part of a multi-national collaboration between the USA, Japan and Norway, we developed a mobile, high-performance radar system for fine-resolution measurements of ice thickness and imaging of the englacial and basal structure of the East Antarctic Ice sheet. We operated the radar near Dome Fuji during the 2018/2019 Austral Summer campaign. We performed surface-based measurements over 2,000 line-km to aid with the identification of potential drill sites for the recovery of ice samples more than 1 to 1.5 million years (1 Ma to 1.5 Ma) old in this area. In this contribution, we will present an overview of the radar system and field operations; and show the most recent radar images obtained after synthetic aperture radar (SAR) processing, precision geo-location, and systematic corrections applied to the radar data.