ESTIMATING WAVE GENERATION ON RESTRICTED FETCHES

The applicability of one-dimensional wave generation models to fetches that are restricted in width as well as length is considered. An analytical estimation approach, the spectral contribution method, is developed and compared with the established effective fetch method. Estimated wave fields are compared with measured results from four sites with varying degrees of fetch restriction. For width restricted fetches, the spectral contribution method is a more efficient estimator than the effective fetch method. Two one-dimensional wave generation models and two directional distribution models are investigated. For limited fetches, the JONSWAP spectrum appears slightly superior to the Bretschneider spectrum and the Pierson, Neumann, and James distribution yields better estimates than the Longuet-Higgins, Cartwright, and Smith distribution. /Author/

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Seymour, R J
• Publication Date: 1977-5

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 251-264
• Serial:
  • ASCE J of the Waterway, Port, Coastal & Ocean Div
  • Volume: 103
  • Issue Number: WW2
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Estimates; Mathematical models; Measurement; Physical distribution; Waves; Width
• Uncontrolled Terms: Models
• Subject Areas: Freight Transportation; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00165382
• Record Type: Publication
• Report/Paper Numbers: ASCE 12924 Proceeding
• Files: TRIS
• Created Date: Mar 7 1978 12:00AM