論文

査読有り
2017年6月

First measurement of ice-bedrock interface of alpine glaciers by cosmic muon radiography

GEOPHYSICAL RESEARCH LETTERS
  • R. Nishiyama
  • ,
  • A. Ariga
  • ,
  • T. Ariga
  • ,
  • S. Kaser
  • ,
  • A. Lechmann
  • ,
  • D. Mair
  • ,
  • P. Scampoli
  • ,
  • M. Vladymyrov
  • ,
  • A. Ereditato
  • ,
  • F. Schlunegger

44
12
開始ページ
6244
終了ページ
6251
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/2017GL073599
出版者・発行元
AMER GEOPHYSICAL UNION

The shape of the bedrock underneath alpine glaciers bears vital information on the erosional mechanism related to the flow of ice. So far, several geophysical exploration methods have been proposed to map the bedrock topography though with limited accuracy. Here we illustrate the first results from a technology, called cosmic ray muon radiography, newly applied in glacial geology to investigate the bedrock geometry beneath the Aletsch Glacier situated in the Central Swiss Alps. For this purpose we installed new cosmic muon detectors made of emulsion films at three sites along the Jungfrau railway tunnel and measured the shape of the bedrock under the uppermost part of Aletsch Glacier (Jungfraufirn). Our results constrain the continuation of the bedrock-ice interface up to a depth of 50 m below the surface, where the bedrock underneath the glacier strikes NE-SW and dips at 45 degrees +/- 5 degrees. This documents the first successful application of this technology to a glaciated environment.

Web of Science ® 被引用回数 : 15

リンク情報
DOI
https://doi.org/10.1002/2017GL073599
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000405854200043&DestApp=WOS_CPL
ID情報
  • DOI : 10.1002/2017GL073599
  • ISSN : 0094-8276
  • eISSN : 1944-8007
  • Web of Science ID : WOS:000405854200043

エクスポート
BibTeX RIS