USING A MOBILE RADIO ECHO SOUNDER TO MEASURE BEDROCK TOPOGRAPHY IN EAST QUEEN MAUD LAND, ANTARCTICA

元データ 国立極地研究所

概要

As part of the Dome-Fuji Project, the topography of the bedrock over a wide area around Dome-F and along routes from Dome-F to S16 (about 1000 km distance) was surveyed by radio echo sounder with a continuous recording system. The bedrock topography was successfully measured under ice sheets thicker than 3500m, and the performance of the radio echo sounder was confirmed. The highest point of Dome-F was located in the basin like topography of the bedrock, surrounded by more elevated areas. The strength of the bedrock echo were found to differ substantially between inside and outside of the Dome-F area. This difference is probably due to the difference of ice sheet temperatures between these areas, because the attenuation coefficients depend on the ice temperature. The stronger echo at high altitude will enable us to measure ice thickness more than 3500 m.

著者

Watanabe Okitsugu National Institute of Polar Research, Research Organization of Information and Systems
Kamiyama Kokichi National Institute of Polar Research, Research Organization of Information and Systems
Furukawa Teruo National Institute of Polar Research
Shiraiwa T Disaster Prevention Research Institute Kyoto University
Naruse Renji Institute of Low Temperature Science, Hokkaido University
Watanabe Okitsugu National Institute Of Polar Research
Kamiyama K National Institute Of Polar Research Research Organization Of Information And Systems
Kamiyama Kokichi National Institute Of Polar Research
SUITZ Takeshi Communications Research Laboratory
URATSUKA Seiho Communications Research Laboratory
Takahashi Shuhei Department Of Civil Engineering Kitami Institute Of Technology
MAENO Hideo Communications Research Laboratory
OKAMOTO Kenichi Communications Research Laboratory
Kawada Kunio Department Earth Science Toyama University
Okamoto Ken'ichi Communications Research Laboratory
Maeno Hideo Communication Research Laboratory
Naruse Reij Institute Of Low Temperature Science Hokkaido University
Naruse Renji Institute Of Low Temperature Science Hokkaido University
Naruse Reiji Institute Of Low Temperature Science Hokkaido University
Uratsuka S Communications Research Laboratory
Okamoto K Communications Research Laboratory
Suzuki Toshitaka Faculty Of Science Yamagata University

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