Spatial Coherence and Crest-length Statistics of Waves
Abstract
The methodology to simulate realizations of a nonlinear sea surface with a specified frequency-directional spectrum and a specified bispectrum have been developed. The simulation algorithm accounts for interactions between waves traveling in different directions. The target wavenumber spectrum can be obtained from observations, the output of a wave prediction model, or theory. The target bispectrum can be obtained from observations or from second-order nonlinear theory given the wavenumber spectrum. The bispectrum estimated from the wavenumber spectrum from LIDAR observations and second-order theory compares well with the bispectrum estimated directly from the images of approximately 1 m high waves in 20-30 m water depth near the North Carolina coast.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 02, 2000
- Accession Number
- ADA381578
Entities
People
- Steve Elgar
- T. H. Herbers
Organizations
- Woods Hole Oceanographic Institution