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タイトル
  • Aeromagnetic survey using an unmanned autonomous helicopter over Tarumae Volcano, northern Japan
作成者

Hashimoto, Takeshi

Koyama, Takao

Kaneko, Takayuki

Ohminato, Takao

Yanagisawa, Takatoshi

Yoshimoto, Mitsuhiro

Suzuki, Eiichi

主題
  • Other aeromagnetic survey
  • Other geomagnetism
  • Other Tarumae Volcano
  • Other unmanned autonomous helicopter
  • NDC 450
内容注記
Other
  • Unmanned aerial vehicles (UAVs) have recently received attention in various research fields for their ability to perform measurements, surveillance, and operations in hazardous areas. Our application is volcano surveillance, in which we used an unmanned autonomous helicopter to conduct a dense low-altitude aeromagnetic survey over Tarumae Volcano, northern Japan. In autonomous flight, we demonstrated positioning control with an accuracy of similar to 10 m, which would be difficult for an ordinary crewed vehicle. In contrast to ground-based magnetic measurement, which is highly susceptible to local anomalies, the field gradient in the air with a terrain clearance of 100 to 300 m was fairly small at 1 nT/m. This result suggests that detection of temporal changes of an order of 10 nT may be feasible through a direct comparison of magnetic data between separate surveys by means of such a system, rather than that obtained by upward continuation to a common reduction surface. We assessed the temporal magnetic changes in the air, assuming the same remagnetising source within the volcano that was recently determined through ground surveys. We conclude that these expected temporal changes would reach a detection level in several years through a future survey in the air with the same autonomous vehicle.
出版者CSIRO Publishing
日付 Issued 2014-03
言語eng
資源タイプjournal article
出版タイプAM
資源識別子 URI http://hdl.handle.net/2115/56579
関連
  • isIdenticalTo DOI https://doi.org/10.1071/EG12087
収録誌情報
    • ISSN 0812-3985
    • ISSN 1834-7533
    • Exploration Geophysics
    45(1), 37-42
ファイル
コンテンツ更新日時2017-10-15T15:00:00Z