K-GPSを用いた火山地形の計測 : 伊豆大室山での試行

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タイトル別名
  • Measurement of Volcanic Morphology by Using K-GPS : A Trial at Omuroyama Scoria Cone in Izu, Japan
  • K-GPS オ モチイタ カザン チケイ ノ ケイソク : イズ オオムロヤマ デ ノ シコウ

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Morphometrical studies on small volcanic edifices such as scoria cones have been extensively conducted. Nevertheless, some morphometric parameters have been difficult to obtain. For instance, it is often difficult to measure a slope angle of volcano edifice because DEM (Digital Elevation Model) with high spatial resolution are not always available. We used the K-GPS (Kinematic Global Positioning System) for high resolution measurement of the slope angle of Omuroyama, a typical young scoria cone in Eastern Izu, Japan, assuming no detailed DEM available in the region. We show the existence of constant slope of 32° from the base to the top. The result of the K-GPS measurement is consistent with the existing DEM of this region. We report the measuring system is simple and viable for summary survey of slope angle where no DEMs are available.

収録刊行物

  • 火山

    火山 60 (3), 357-363, 2015

    特定非営利活動法人 日本火山学会

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