Imaging measurement of whitecaps at sea observation tower

Y. Sugihara, H. Tsumori, H. Yoshioka, S. Serizawa, A. Masuda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (Scopus)

    Abstract

    Whitecap coverage was estimated from imaging measurements at a sea observation tower. High-resolution images of whitecaps were taken using a digital camera system located at 14 m above the mean sea level, and they were stored automatically in steps of 1 s. The present results indicate that the 1/3 power of whitecap coverage increases linearly with increasing the wind speed at an elevation of 10 m, and that whitecapping is influenced significantly by the near-water air stability and the state of development of surface waves. Whitecaps are produced most activity under the condition of pure windsea, and they tend to be suppressed by the presence of swell. It is difficult to find the dependence of whitecap coverage on the deflection angle between propagating directions of wind waves and swell.

    Original languageEnglish
    Title of host publicationProceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004
    EditorsJane McKee Smith, Jane McKee Smith
    PublisherAmerican Society of Civil Engineers (ASCE)
    Pages1082-1092
    Number of pages11
    ISBN (Electronic)9789812562982, 9789812562982
    DOIs
    Publication statusPublished - Apr 1 2005
    Event29th International Conference on Coastal Engineering, ICCE 2004 - Lisbon, Portugal
    Duration: Sep 19 2004Sep 24 2004

    Publication series

    NameProceedings of the Coastal Engineering Conference
    Volume2005-January
    ISSN (Print)0161-3782

    Other

    Other29th International Conference on Coastal Engineering, ICCE 2004
    CountryPortugal
    CityLisbon
    Period9/19/049/24/04

    Fingerprint

    swell
    Towers
    Imaging techniques
    Sea level
    Digital cameras
    wind wave
    image resolution
    Image resolution
    deflection
    Surface waves
    surface wave
    wind velocity
    sea level
    air
    Air
    Water
    water
    sea

    All Science Journal Classification (ASJC) codes

    • Civil and Structural Engineering
    • Ocean Engineering
    • Oceanography

    Cite this

    Sugihara, Y., Tsumori, H., Yoshioka, H., Serizawa, S., & Masuda, A. (2005). Imaging measurement of whitecaps at sea observation tower. In J. M. Smith, & J. M. Smith (Eds.), Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004 (pp. 1082-1092). (Proceedings of the Coastal Engineering Conference; Vol. 2005-January). American Society of Civil Engineers (ASCE). https://doi.org/10.1142/9789812701916-0086

    Imaging measurement of whitecaps at sea observation tower. / Sugihara, Y.; Tsumori, H.; Yoshioka, H.; Serizawa, S.; Masuda, A.

    Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004. ed. / Jane McKee Smith; Jane McKee Smith. American Society of Civil Engineers (ASCE), 2005. p. 1082-1092 (Proceedings of the Coastal Engineering Conference; Vol. 2005-January).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Sugihara, Y, Tsumori, H, Yoshioka, H, Serizawa, S & Masuda, A 2005, Imaging measurement of whitecaps at sea observation tower. in JM Smith & JM Smith (eds), Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004. Proceedings of the Coastal Engineering Conference, vol. 2005-January, American Society of Civil Engineers (ASCE), pp. 1082-1092, 29th International Conference on Coastal Engineering, ICCE 2004, Lisbon, Portugal, 9/19/04. https://doi.org/10.1142/9789812701916-0086
    Sugihara Y, Tsumori H, Yoshioka H, Serizawa S, Masuda A. Imaging measurement of whitecaps at sea observation tower. In Smith JM, Smith JM, editors, Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004. American Society of Civil Engineers (ASCE). 2005. p. 1082-1092. (Proceedings of the Coastal Engineering Conference). https://doi.org/10.1142/9789812701916-0086
    Sugihara, Y. ; Tsumori, H. ; Yoshioka, H. ; Serizawa, S. ; Masuda, A. / Imaging measurement of whitecaps at sea observation tower. Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004. editor / Jane McKee Smith ; Jane McKee Smith. American Society of Civil Engineers (ASCE), 2005. pp. 1082-1092 (Proceedings of the Coastal Engineering Conference).
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