Title page for etd-0914113-040500


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URN etd-0914113-040500
Author Ching-jen Chin
Author's Email Address No Public.
Statistics This thesis had been viewed 5573 times. Download 330 times.
Department IAMPUT
Year 2013
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Wind Speed Inversion by Ocean Ambient Noise off Su-ao Coast
Date of Defense 2013-08-13
Page Count 69
Keyword
  • Wind Speed Inversion
  • Ocean Ambient Noise
  • Regression Analysis
  • Stable Wind Event
  • Northeastern Taiwan
  • Abstract The weather in Taiwan is influenced by annual monsoon. In summer, typhoons, which develop between Philippines and Guan, come from southeastern Taiwan to northwestward and often cause massive damages. In winter, the northeastern monsoon causes heavy rain fall around the northeastern region of Taiwan. Therefore, to improve the precision on land, the weather station off the northeastern can be crucial. The MACHO (MArine Cable Hosted Observatory) project was conducted off the coast of Toucheng to resolve the limited observation on land, and a hydrophone was deployed to record the ambient noise, which can be used to invert the wind speed and compared with data from Su-ao weather station. The long duration stable wind event was used to compare with the acoustic signals recorded by the hydrophone for correlation, by which characteristic frequency for inversion can be decide. The regression analysis of wind speed and ambient noise help to establish the wind speed inversion formula, which was verified by the in-situ data. The method proposed in this study has achieved the goal of estimating wind speed off the coast by acoustic data, and expands the capability of weather observation.
    Advisory Committee
  • Yang, Shiuh-Kuang - chair
  • Chi-Fang Chen - co-chair
  • Ruey-Chang Wei - advisor
  • Files
  • etd-0914113-040500.pdf
  • Indicate in-campus at 3 year and off-campus access at 3 year.
    Date of Submission 2013-10-14

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