Features of ice sheet flow in East Dronning Maud Land, East Antarctica

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概要

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• The Japanese Antarctic Research Expeditions(JAREs) have done glaciological studies on ice sheet dynamics and surface mass balance in East Dronning Maud Land, mainly around the Shirase Glacier drainage basin, during more than 30 years. The surface mass balance, obtained mainly by the snow stake method, was more than 250mm/a in the coastal region, less than 50mm/a in the inland region higher than 3500m in altitude, and about 100mm/a on average in the five drainage basins in East Dronning Maud Land. The ice flow velocity was observed around East Dronning Maud Land in three observation periods: on a route transversal to the Shirase Glacier flow in 1969 to 1974, along a route longitudinal to Shirase Glacier and a transversal route from Mizuho Station(70°42'S , 44°17'E , 2250m a.s.l.) to the Sr Rondane Mountains area in 1982 to 1987, and along a route from S16(69°02'S , 40°03'E , 554m a.s.l.) near the coast to Dome Fuji Station(77°19'S , 39°42'E , 3810m a.s.l.) in 1992 to 1995. Assuming steady ice flow, the balance velocity is calculated by integrating the surface mass balance in the upstream area from a specific point to the flow origin between adjacent stream lines. From the relation between balance velocity and basal shear stress, the basal sliding area was specified.

• 国立極地研究所の論文

著者

• Watanabe Okitsugu

  National Institute of Polar Research, Research Organization of Information and Systems

• Takahashi Shuhei

  Kitami Institute of Technology

• Shiraiwa T

  Disaster Prevention Research Institute Kyoto University

• Naruse Renji

  Institute of Low Temperature Science, Hokkaido University

• Watanabe O

  National Institute Of Polar Research Research Organization Of Information And Systems

• Watanabe Okitsugu

  National Institute Of Polar Research

• Saito T

  Institute Of Low Temperature Science Hokkaido University

• Nishio Fumihiko

  Center for Environmental Remote Sensing, Chiba University

• Watanabe Okitsusgu

  National Institute of Polar Research

• Takahashi Shuhei

  Department Of Civil Engineering Kitami Institute Of Technology

• Shiraiwa Takayuki

  O Faculty Of Science Tokyo Institute Of Technology

• Nishio Fumihiko

  Center For Environmental Remote Sensing Chiba University

• Naruse Reij

  Institute Of Low Temperature Science Hokkaido University

• Naruse R

  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

• Suzuki T

  Department Of Earth And Environmental Sciences Faculty Of Science Yamagata University

• Suzuki Toshitaka

  Faculty Of Science Yamagata University

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