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Height distribution of stochastic Lagrange ocean waves

Åberg, Sofia LU and Lindgren, Georg LU (2008) In Probabilistic Engineering Mechanics 23(4). p.359-363
Abstract
The Gaussian wave model has been successfully used in ocean engineering for more than half a century. It is well understood, and there exists both exact theory and efficient numerical algorithms for calculation of the distribution of safety related wave characteristics, such as crest height and steepness. Its drawback is its lack of realism: it produces waves which are stochastically symmetric, both in the vertical and in the horizontal direction. From that point of view, the Lagrangian wave model is more realistic, but its stochastic properties have not been studied until quite recently. We present an explicit expression for the occupation density (approximately the univariate probability density) of the Lagrangian wave model. We also... (More)
The Gaussian wave model has been successfully used in ocean engineering for more than half a century. It is well understood, and there exists both exact theory and efficient numerical algorithms for calculation of the distribution of safety related wave characteristics, such as crest height and steepness. Its drawback is its lack of realism: it produces waves which are stochastically symmetric, both in the vertical and in the horizontal direction. From that point of view, the Lagrangian wave model is more realistic, but its stochastic properties have not been studied until quite recently. We present an explicit expression for the occupation density (approximately the univariate probability density) of the Lagrangian wave model. We also draw some conclusions about the definition of freak or rogue waves. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Significant wave height, Freak waves, Rogue waves, Occupation density, Gaussian process, Wave height
in
Probabilistic Engineering Mechanics
volume
23
issue
4
pages
359 - 363
publisher
Elsevier
external identifiers
  • wos:000259894400003
  • scopus:50849115808
ISSN
0266-8920
DOI
10.1016/j.probengmech.2007.08.006
language
English
LU publication?
yes
id
9c358141-a3b1-42c1-a49a-4bf9cf7a343a (old id 1170370)
alternative location
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6V4M-4S01WR1-3-7&_cdi=5762&_user=745831&_orig=search&_coverDate=10%2F31%2F2008&_sk=999769995&view=c&wchp=dGLzVtb-zSkWA&md5=be8878280b854972ded9ce8208b89412&ie=/sdarticle.pdf
date added to LUP
2008-10-06 15:45:30
date last changed
2017-03-15 13:26:56
@article{9c358141-a3b1-42c1-a49a-4bf9cf7a343a,
  abstract     = {The Gaussian wave model has been successfully used in ocean engineering for more than half a century. It is well understood, and there exists both exact theory and efficient numerical algorithms for calculation of the distribution of safety related wave characteristics, such as crest height and steepness. Its drawback is its lack of realism: it produces waves which are stochastically symmetric, both in the vertical and in the horizontal direction. From that point of view, the Lagrangian wave model is more realistic, but its stochastic properties have not been studied until quite recently. We present an explicit expression for the occupation density (approximately the univariate probability density) of the Lagrangian wave model. We also draw some conclusions about the definition of freak or rogue waves.},
  author       = {Åberg, Sofia and Lindgren, Georg},
  issn         = {0266-8920},
  keyword      = {Significant wave height,Freak waves,Rogue waves,Occupation density,Gaussian process,Wave height},
  language     = {eng},
  number       = {4},
  pages        = {359--363},
  publisher    = {Elsevier},
  series       = {Probabilistic Engineering Mechanics},
  title        = {Height distribution of stochastic Lagrange ocean waves},
  url          = {http://dx.doi.org/10.1016/j.probengmech.2007.08.006},
  volume       = {23},
  year         = {2008},
}