Extraction of climate change signals from bedrock river longitudinal profiles

2012 Fiscal Year Final Research Report

• Project/Area Number: 23701028
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Geography
• Research Institution: The University of Tokyo
• Principal Investigator: HAYAKAWA Yuichi S. 東京大学, 空間情報科学研究センター, 助教 (70549443)
• Project Period (FY): 2011 – 2012
• Keywords: 岩盤河川 / 遷急点 / 遷急区間 / 滝 / GIS

Research Abstract

Morphology of bedrock rivers is often affected by various environmental factors including geologic, tectonic and climatic conditions. In this study the relationships between climate changes and bedrock river erosion, particularly focusing on the longitudinal profiles and knickzones, are examined by means of quantitative morphological and geospatial analyses. The results suggest that knickzones and related bedrock river morphological features are often affected by spatiotemporal changes in hydraulic forces and climate changes.

Research Products

• [Journal Article] Effects of tsunami wave erosion on natural landscapes: Examples from the 2011Tohoku-oki Tsunami. In: Y. Kontar, V. Santiago-Fandino, T. Takahashi (eds.), Tsunami Events and Lessons Learned; Environmental and Societal Significance. (2013)
  • Author(s): Komatsu, G., Goto, K., Baker, V.R., Oguchi, T., Hayakawa, Y.S., Saito, H., Pelletier, J.D., Mcguire, L., Iijima, Y.
  • Journal Title: Springer. Volume: (in press)
• [Journal Article] 集集地震により生し〓台湾中西部おけ滝の地後10年の後退速度の変化 (2013)
  • Author(s): 早川裕弌・松多信尚・前門晃・松倉公憲
  • Journal Title: 地形 Volume: 34 Pages: 21-26
• [Journal Article] Hydrogeomorphic effects of basin lithology on development of channel steps in first-order basins of the Ashio Mountains,Japan. (2013)
  • Author(s): Hattanji, T., Wasklewicz, T.A., Hayakawa,
  • Journal Title: Physical Geography Volume: 33 Pages: 536-560
• [Journal Article] Postglacial recession rates of waterfalls in alpine glacial valleys. (2011)
  • Author(s): Hayakawa, Y.S.
  • Journal Title: Japanese Geomorphological Volume: 32 Pages: 179-184
• [Journal Article] テ〓〓ルカメラレーさ〓距離計山腹崩壊地の計測手法 (2011)
  • Author(s): 柴田健一・鈴木洋佑・今泉文寿・早川裕弌
  • Journal Title: 砂防学会誌:新砂防 Volume: 64 Pages: 27-30
• [Journal Article] Without power? Landslide inventories in the face of climate change. (2011)
  • Author(s): Korup, O., Gorum, T., Hayakawa, Y.S.
  • Journal Title: Earth Surface Processes and Landforms Volume: 37 Pages: 92-99
• [Presentation] Fault-scarp knickpoint recession in 10 years after Chi-Chi Earthquake in central Taiwan (2012)
  • Author(s): Hayakawa, Y.S., Matsuta, N., Maekado, A., Matsukura, Y.
  • Organizer: AGU Fall Meeting 2012Abstract EP13A-0811, San Francisco
  • Place of Presentation: California, USA.
  • Year and Date: 20120000
• [Presentation] 滝おけ滝上部崩後の地形変化後退メカニズム (2012)
  • Author(s): 早川裕弌
  • Organizer: 日地形学連合2012秋季大会
  • Place of Presentation: 大阪教育大学
  • Year and Date: 20120000
• [Presentation] Terrestrial laser scanning of cliff face at Kegon Falls (2012)
  • Author(s): Hayakawa, Y.S.
  • Organizer: Abstracts, Japan Geosciences Union International
  • Place of Presentation: Makuhari Messe.
  • Year and Date: 20120000
• [Presentation] Morphological analysis of waterfall cliff face by terrestrial laser scanning (2012)
  • Author(s): Hayakawa, Y.S.
  • Organizer: Geophysical Research Abstracts, 14, EGU2012-2578-1
  • Place of Presentation: Vienna, Austria.
  • Year and Date: 20120000
• [Presentation] Fault-scarp knickpoint recession and subsequent riverbank widening in central Taiwan (2011)
  • Author(s): Hayakawa, Y.S.
  • Organizer: Changes in bedrock morphology from field and satellite observations. Japan Geosciences Union International Meeting
  • Place of Presentation: Makuhari, Chiba
  • Year and Date: 20110000
• [Presentation] Geospatial analysis on topography and archaeological sites in Kayseri, Turkey (2011)
  • Author(s): Hayakawa, Y.S., Kontani, R., Sudo, H., Yamaguchi, Y., Kulakoglu, F.
  • Organizer: A preliminary result. Japan Geosciences Union International Meeting
  • Place of Presentation: Chiba.
  • Year and Date: 20110000
• [Presentation] 層崖かか滝の後退速度の変化:台湾,集集地からの10年 (2011)
  • Author(s): 早川裕弌
  • Organizer: 日地形学連合2011秋季大会
  • Place of Presentation: 金沢大学
  • Year and Date: 20110000
• [Presentation] Scale dependency of stream gradient calculation and its use to quantify bedrock river morphology (2011)
  • Author(s): Hayakawa, Y.S., Oguchi, T.
  • Organizer: Geomorphometry 2011
  • Place of Presentation: Redlands, CA, USA.
  • Year and Date: 20110000
• [Book] Remote data in fluvial geomorphology: characteristics and applications. In: Shroder, J. (ed.) (2013)
  • Author(s): Oguchi, T., Wasklewicz, T., Hayakawa, Y.S.,
  • Publisher: Treatise in Geomorphology. Academic Press, Elsevier.
• [Book] 河川プロセス・河床形の発達-点岩屑の運搬堆積」山部の河成地形-峡谷早瀬滝谷底平野」 (2013)
  • Author(s): 早川裕弌
  • Publisher: In:小池一之山下脩二岩田修二漆原和子小泉武栄田瀬則雄松倉公憲松淳山川修治(編)自然地理学事」,朝倉書店.
• [Book] 河川形異常」点」滝」オンライン地形表示ツール」他. (2013)
  • Author(s): 早川裕弌
  • Publisher: In:鈴木隆介野上道男砂村継夫(編)地形の辞」,朝倉書店
• [Book] Geomorphological Mapping: Methods and Applications: A Professional Handbook of Techniques and Applications. Developments in Earth Surface Processes 15 (2011)
  • Author(s): Oguchi, T., Hayakawa, Y.S., Wasklewicz, T.
  • Total Pages: 189-224
  • Publisher: In: Smith, M., Paron, P., Griffiths, J. (eds.)