Sediment Yields Triggered by Heavy Rainfall in July 2012 at Aso Volcano: Application of High-Definition Topography Data Using Unmanned Aerial Vehicles and Structure-from-Motion Multi-View Stereo Photogrammetry

• Hitoshi SAITO

  College of Economics, Kanto Gakuin University

• Shoichiro UCHIYAMA

  National Research Institute for Earth Science and Disaster Resilience

• Hiroyuki OBANAWA

  VisionTech Inc.

• Yuichi S. HAYAKAWA

  Center for Spatial Information Science, The University of Tokyo

Bibliographic Information

Other Title

• 平成24年（2012年）7月九州北部豪雨に伴う阿蘇火山地域での土砂生産量の推定──UAVとSfM多視点ステレオ写真測量を用いた高精細地形データの活用──
• 平成24年(2012年)7月九州北部豪雨に伴う阿蘇火山地域での土砂生産量の推定 : UAVとSfM多視点ステレオ写真測量を用いた高精細地形データの活用
• ヘイセイ 24ネン(2012ネン)7ガツ キュウシュウ ホクブ ゴウウ ニ トモナウ アソカザン チイキ デ ノ ドシャ セイサンリョウ ノ スイテイ : UAV ト SfM タシテン ステレオ シャシン ソクリョウ オ モチイタ コウセイサイ チケイ データ ノ カツヨウ

Abstract

In the last few years, small unmanned aerial vehicles (UAVs) and structure-from-motion multi-view stereo (SfM-MVS) photogrammetry have attracted a tremendous amount of interest for the creation of high-definition topographic data. This study detected spatial distributions of shallow landslides and their sediment yields using small UAVs and SfM-MVS photogrammetry. The study areas were the Saishigahana area (0.06km²) and the Sensuikyo area (1.00km²) at Aso Volcano, Japan, where many shallow landslides occurred due to heavy rainfall in July 2012. We obtained ortho-rectified photographs with spatial resolutions of 0.04, and digital surface models (DSMs) with spatial resolutions of 0.10 and 0.16m. In the Saishigahana area, 26 landslides (19.87–4,593.85m²) occurred. The ratio of the total landslide area was 30% of the area. The estimated sediment yield reached 4.84 (±0.37)×10⁵m³/km². In the Sensuikyo area, 378 landslides (8.74–6,162.23m²) occurred. The estimated total landslide volume was 1.22 (±0.21)×10⁵m³/km². These sediment yields were 10 times greater than reported after the past rainfall-induced landslide events in the area. Our results demonstrated the potential sediment yields due to a single rainfall event at Aso Volcano.

Journal

• Geographical review of Japan series A

  Geographical review of Japan series A 89 (6), 347-359, 2016-11-01

  The Association of Japanese Geographers

Keywords

• heavy rainfall in July 2012
• unmanned aerial vehicle
• structure-from-motion and multi-view stereo photogrammetry
• high-definition topography
• shallow landslide
• sediment yield

Details

• CRID: 1390282752342667520
• NII Article ID: 130007724227
• NII Book ID: AA11591990
• DOI: 10.4157/grj.89.347
• ISSN: 21851751
• ISSN: 18834388
• NDL BIB ID: 027745031
• Web Site: http://id.ndl.go.jp/bib/027745031
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027745031
• Web Site: https://www.jstage.jst.go.jp/article/grj/89/6/89_890604/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed