dorsal/arxiv
View SchemaComparison between three-dimensional linear and nonlinear tsunami generation models
| Authors | Youen Kervella, Denys Dutykh, Frédéric Dias |
|---|---|
| Categories | |
| ArXiv ID | physics/0611140 |
| URL | https://arxiv.org/abs/physics/0611140 |
| DOI | 10.1007/s00162-007-0047-0 |
| Journal | Theoretical and Computational Fluid Dynamics (2007), Vol. 21, pp. 245-269 |
Abstract
The modeling of tsunami generation is an essential phase in understanding tsunamis. For tsunamis generated by underwater earthquakes, it involves the modeling of the sea bottom motion as well as the resulting motion of the water above it. A comparison between various models for three-dimensional water motion, ranging from linear theory to fully nonlinear theory, is performed. It is found that for most events the linear theory is sufficient. However, in some cases, more sophisticated theories are needed. Moreover, it is shown that the passive approach in which the seafloor deformation is simply translated to the ocean surface is not always equivalent to the active approach in which the bottom motion is taken into account, even if the deformation is supposed to be instantaneous.
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"abstract": "The modeling of tsunami generation is an essential phase in understanding\ntsunamis. For tsunamis generated by underwater earthquakes, it involves the\nmodeling of the sea bottom motion as well as the resulting motion of the water\nabove it. A comparison between various models for three-dimensional water\nmotion, ranging from linear theory to fully nonlinear theory, is performed. It\nis found that for most events the linear theory is sufficient. However, in some\ncases, more sophisticated theories are needed. Moreover, it is shown that the\npassive approach in which the seafloor deformation is simply translated to the\nocean surface is not always equivalent to the active approach in which the\nbottom motion is taken into account, even if the deformation is supposed to be\ninstantaneous.",
"arxiv_id": "physics/0611140",
"authors": [
"Youen Kervella",
"Denys Dutykh",
"Fr\u00e9d\u00e9ric Dias"
],
"categories": [
"physics.flu-dyn",
"physics.ao-ph"
],
"doi": "10.1007/s00162-007-0047-0",
"journal_ref": "Theoretical and Computational Fluid Dynamics (2007), Vol. 21, pp.\n 245-269",
"title": "Comparison between three-dimensional linear and nonlinear tsunami generation models",
"url": "https://arxiv.org/abs/physics/0611140"
},
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