Wave nonlinearity (original) (raw)
The nonlinearity of surface gravity waves refers to their deviations from a sinusoidal shape. In the fields of physical oceanography and coastal engineering, the two categories of nonlinearity are skewness and asymmetry. Wave skewness and asymmetry occur when waves encounter an opposing current or a shallow area. As waves shoal in the nearshore zone, in addition to their wavelength and height changing, their asymmetry and skewness also change. Wave skewness and asymmetry are often implicated in ocean engineering and coastal engineering for the modelling of random sea states, in particular regarding the distribution of wave height, wavelength and crest length. For practical engineering purposes, it is important to know the probability of these wave characteristics in seas and oceans at a gi
| Property | Value |
|---|---|
| dbo:abstract | The nonlinearity of surface gravity waves refers to their deviations from a sinusoidal shape. In the fields of physical oceanography and coastal engineering, the two categories of nonlinearity are skewness and asymmetry. Wave skewness and asymmetry occur when waves encounter an opposing current or a shallow area. As waves shoal in the nearshore zone, in addition to their wavelength and height changing, their asymmetry and skewness also change. Wave skewness and asymmetry are often implicated in ocean engineering and coastal engineering for the modelling of random sea states, in particular regarding the distribution of wave height, wavelength and crest length. For practical engineering purposes, it is important to know the probability of these wave characteristics in seas and oceans at a given place and time. This knowledge is crucial for the prediction of extreme waves, which are a danger for ships and offshore structures. Satellite altimeter Envisat RA-2 data shows geographically coherent skewness fields in the ocean and from the data has been concluded that large values of skewness occur primarily in regions of large significant wave height. At the nearshore zone, skewness and asymmetry of surface gravity waves are the main drivers for sediment transport. (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/Waves111111111111111.png?width=300 |
| dbo:wikiPageID | 67657720 (xsd:integer) |
| dbo:wikiPageLength | 14953 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1103279179 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Rogue_wave dbr:Breaking_wave dbr:Delft_University_of_Technology dbr:Current_(fluid) dbr:Infragravity_wave dbr:Wavenumber dbr:Wind_stress dbr:Sea_state dbr:Coastal_morphodynamics dbr:Envisat dbr:Fritz_Ursell dbr:Littoral_zone dbr:Statistics dbr:Altimeter dbr:Normal_distribution dbr:Offshore_construction dbr:Rip_current dbr:Probability_theory dbr:Random dbr:Hilbert_transform dbr:Surf_zone dbc:Gravity_waves dbr:Coastal_engineering dbr:Wind_waves dbr:National_Oceanic_and_Atmospheric_Administration dbr:Significant_wave_height dbr:Sine_wave dbr:Wavelength dbr:Wind_wave_model dbr:Sediment_transport dbr:Physical_oceanography dbr:Non-linear_effects dbr:Wave_height dbr:Linear_wave_theory dbr:Surface_gravity_wave dbr:File:Waves111111111111111.png dbr:File:Waves222222222222222222222.jpg dbr:Phase-averaged dbr:Phase-resolving |
| dbp:wikiPageUsesTemplate | dbt:Portal_bar dbt:Reflist dbt:Physical_oceanography |
| dct:subject | dbc:Gravity_waves |
| rdfs:comment | The nonlinearity of surface gravity waves refers to their deviations from a sinusoidal shape. In the fields of physical oceanography and coastal engineering, the two categories of nonlinearity are skewness and asymmetry. Wave skewness and asymmetry occur when waves encounter an opposing current or a shallow area. As waves shoal in the nearshore zone, in addition to their wavelength and height changing, their asymmetry and skewness also change. Wave skewness and asymmetry are often implicated in ocean engineering and coastal engineering for the modelling of random sea states, in particular regarding the distribution of wave height, wavelength and crest length. For practical engineering purposes, it is important to know the probability of these wave characteristics in seas and oceans at a gi (en) |
| rdfs:label | Wave nonlinearity (en) |
| owl:sameAs | wikidata:Wave nonlinearity https://global.dbpedia.org/id/Fz7oZ |
| prov:wasDerivedFrom | wikipedia-en:Wave_nonlinearity?oldid=1103279179&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Waves111111111111111.png wiki-commons:Special:FilePath/Waves222222222222222222222.jpg |
| foaf:isPrimaryTopicOf | wikipedia-en:Wave_nonlinearity |
| is dbo:wikiPageRedirects of | dbr:Wave_Nonlinearity |
| is dbo:wikiPageWikiLink of | dbr:Internal_wave_breaking dbr:Wave_Nonlinearity dbr:Nonlinear_tides |
| is foaf:primaryTopic of | wikipedia-en:Wave_nonlinearity |
