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2003 Fiscal Year Final Research Report Summary

Surf zone observations with X-band radar system and moored video system

Research Project

Project/Area Number 13450200
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 水工水理学
Research InstitutionUniversity of Tsukuba

Principal Investigator

TAKEWAKA Satoshi  University of Tsukuba, Institute of Engineering Mechanics and Systems, Associate Professor, 機能工学系, 助教授 (80202167)

Co-Investigator(Kenkyū-buntansha) NISHIMURA Hitoshi  University of Tsukuba, Institute of Engineering Mechanics and Systems, Professor, 機能工学系, 教授 (00010819)
KOBAYASHI Tomonao  Gifu University, Graduate School of Engineering, Associate Professor, 工学部, 助教授 (50205473)
Project Period (FY) 2001 – 2003
KeywordsX band radar system / Video imaging / Surf zone / Shoreline positions / Foreshore slopes / Remote sensing / Storm observation
Research Abstract

Measuring devices that are fixed to definite points are employed in the usual surf zone observations, which provide accurate time records of hydrodynamic items. The deployment of the instruments, however, is limited in most field experiments, which restricts the spatial understanding of the surf zone dynamics. In this context, a X-band radar system and moored video system are employed to obtain spatial data of the surf zone. Field experiments were conducted at HORS, a research pier located in Hasaki, Japan. Video and radar recording were conducted simultaneously to check the properties of radar echos. Frequent observations including several storm events were done with the radar. Results of the radar records demonstrated the potential of the system showing that the system is able to capture the run-up height of individual waves, longshore distributions of shoreline positions and inter-tidal foreshore slopes. Analyses of temporal variation of run-up positions revealed the existence of longshore propagation of edge wave. PIV analyses of instantaneous radar echo data showed the refraction pattern and depths inverted from local phase speeds of the waves

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 武若聡, 後藤勇, 西村仁嗣: "X線バンドレーダによる前浜地形の観測"土木学会海岸工学論文集. 50. 546-550 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takewaka S., Nishimura H.: "Wave and Morphology Observation during a Storm Event with a Nautical X-Band Radar"Asian and Pacific Coasts Conference APAC2003 Conference Proceedings. (CD-ROM). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 武若聡, Ahmed S.M.Ahmed: "Xバンドレーダを用いた荒天時の浅海域波浪場の観測"土木工学海岸工学論文集. 51(印刷中). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Lee J.H., Takewaka S., Sakai T., Shimbo O.: "Use of X-band Radar for Wave and Beach Morphology Analysis"29th International Conference on Coastal Engineering. (発表予定). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takewaka S., Gotoh I., Nishirnura H.: "Measurements of shoreline positions and inter-tidal foreshore slopes using X-band nautical radar (in Japanese)"Proceedings of the Japanese Coastal Engineering Conference (JSCE). vol.50. 546-550 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takewaka S., Nishimura H.: "Wave and morphology observation during a storm event with a nautical X-band radar"International Conference on Asian and Pacific Coasts. APAC2003 conference (CD-ROM). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takewaka S., Ahmed S.M., Ahmed: "Shallow storm waves measurements with X-band nautical radar (in Japanese)"Proceedings of the Japanese Coastal Engineering Conference (JSCE). vol.51 (in print). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Lee J.H., Takewaka S., Sakai T., Shinbo Q.: "Use of X-band radar for wave and morphology analysis"29th International Conference on Coastal Engineering 2QQ4 (accepted for presentation).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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