Naval Postgraduate School
A numerical study of rain-induced surface gravity wave attenuation.
| dc.contributor.advisor | Nystuen, Jeffrey A. | |
| dc.contributor.author | Howell, David W. | |
| dc.date | June 1989 | |
| dc.date.accessioned | 2013-01-23T22:10:02Z | |
| dc.date.available | 2013-01-23T22:10:02Z | |
| dc.date.issued | 1989-06 | |
| dc.identifier.uri | http://hdl.handle.net/10945/27173 | |
| dc.description | Approved for public release; distribution is unlimited | |
| dc.description.abstract | Strong rain-induced mixing in a thin surface layer is numerically shown to greatly increase surface gravity wave attenuation. This case study uses a single wavelength (2.8 m) together with two mixed layer depths (10 and 20 cm). The rain-induced mixing is simulated by varying kinematic viscosity within the mixed layer from 10"* to 10"^ m- r*' , molecular to strong turbulent mixing, respectively. The results indicate that surface gravity wave attenuation in the presence of a thin rain-induced mixed layer can increase by a factor of up to 60U0 times the attenuation rate due to molecular viscosity alone. This indicates that rain need only mix the top 10-20 cm surface layer to effectively dampen short surface gravity waves. | |
| dc.description.uri | http://archive.org/details/numericalstudyof00howe | |
| dc.format.extent | 31 p. | en_US |
| dc.language.iso | en_US | |
| dc.publisher | Monterey, California. Naval Postgraduate School | en_US |
| dc.rights | This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | |
| dc.title | A numerical study of rain-induced surface gravity wave attenuation. | en_US |
| dc.type | Thesis | en_US |
| dc.contributor.secondreader | Garwood, Roland W. | |
| dc.contributor.corporate | Naval Postgraduate School (U.S.) | |
| dc.contributor.department | Oceanography | |
| dc.subject.author | ocean waves | en_US |
| dc.subject.author | attenuation | en_US |
| dc.subject.author | vortex rings | en_US |
| dc.description.service | Lieutenant, United States Navy | |
| etd.thesisdegree.name | M.S. in Meteorology and Physical Oceanography | en_US |
| etd.thesisdegree.level | Masters | en_US |
| etd.thesisdegree.discipline | Meteorology and Physical Oceanography | en_US |
| etd.thesisdegree.grantor | Naval Postgraduate School | en_US |
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