Title page for etd-0006114-175754


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URN etd-0006114-175754
Author Yun-Huan Yang
Author's Email Address m995080008@student.nsysu.edu.tw
Statistics This thesis had been viewed 5562 times. Download 551 times.
Department IAMPUT
Year 2013
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Laboratorial and In-situ Data analyses on the Relationship between Internal Solitary Wave and Sea Surface Wave Spectrum
Date of Defense 2013-11-22
Page Count 97
Keyword
  • Spectrum
  • Internal wave
  • Wave-current interaction
  • Radar
  • Abstract Wave spectrum is a measure of energy distribution for wave trains of all periods and directions. The shape of wave spectrum is affected by sea surface flow; hence, spectrum can be used to analyze the disturbance on the free surface. Previous studies showed that the sea bottom topography affects the flow and induces uneven distribution of the flow field when an internal wave passes a sill. Convergence of sea surface current enhances the convergence of surface wave, thus increases surface roughness and makes surface waves break.
    This study includes the radiation stress of deepwater wave theory. Physical experiments and field investigation in the northern South China Sea are used to analyze the spectrum change due to the change of flow velocity. One theory depends on the mean flow due to internal waves. The other theory of spectral variation depends on the gradient of flow velocity due to internal waves. The former theory implies the spectrum peak in the front part of the internal wave moves to the range of higher wavenumber .The in-situ spectrum observed by radar also shows the same tendency. Therefore, the former theory is more applicable than the later theory.
    Advisory Committee
  • Hsuan-Shan Chen - chair
  • Dong-Jiing Doong - co-chair
  • Guan-Yu Chen - advisor
  • Files
  • etd-0006114-175754.pdf
  • Indicate in-campus at 0 year and off-campus access at 1 year.
    Date of Submission 2014-01-06

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