CHARACTERISTICS OF TIDE LEVEL AFFECTED BY KUROSHIO

• Abstract:

  With the aim of better understandings on the tide level, which repeats a cyclic motion under the influence of a strong current “Kuroshio”, we observed it over a few years. We then analyzed its time series data on a time-frequency basis by wavelet and short time Fourier transform techniques using a Gabor function. The time-frequency representation revealed a remarkable effect of the winding of the current. With the beginning of the winding, a phase gap between 12 hrs and 24 hrs periodic modes resulted in markedly, and the reappearance period of these modes decreased from about 400 hrs to 300 hrs.
• Keywords:

  tide level observation, wavelet transform, short time Fourier transform
• Download:

  IMEKO-WC-2000-TC19-P581.pdf
• DOI:

  _unreg_wc-2000.581

Event details:

• IMEKO TC:
• Event name:

  XVI IMEKO World Congress
• Title:

  Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

• Place:

  Vienna, AUSTRIA
• Time:

  25 September 2000 - 28 September 2000