Estimating amplitudes of internal waves using satellite ocean colour imagery of the South China Sea

A method is presented for estimating the amplitudes of internal waves (IWs) in ocean colour imagery. The method is tested in the northern South China Sea (SCS) because the environmental conditions there are such that IWs are generated frequently and can therefore be observed easily. A relationship b...

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Vydáno v:International journal of remote sensing Ročník 29; číslo 21; s. 6373 - 6380
Hlavní autoři: Su, F.-C., Ho, C.-R., Zheng, Q., Kuo, N.-J.
Médium: Journal Article Konferenční příspěvek
Jazyk:angličtina
Vydáno: Abingdon Taylor & Francis 01.11.2008
Témata:
Applied geophysics
Earth sciences
Earth, ocean, space
Exact sciences and technology
Internal geophysics
Marine
Marine geology
West Pacific
South China Sea
Pacific Ocean
ISEW, South China Sea
models
color
Space remote sensing
chlorophyll
Environmental factor
concentration
history
Penetration depth
Light interception
amplitude
marine environment
ocean
internal waves
displacements
imagery
methodology
ISSN:0143-1161, 1366-5901
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Shrnutí:A method is presented for estimating the amplitudes of internal waves (IWs) in ocean colour imagery. The method is tested in the northern South China Sea (SCS) because the environmental conditions there are such that IWs are generated frequently and can therefore be observed easily. A relationship between satellite-derived chlorophyll concentration (chl) and the amplitudes of IWs is obtained. Using a deep chlorophyll maximum (DCM) model, the amplitude at the light penetration depth can be estimated. From theoretical models, the amplitude of an IW at the depth where the maximum vertical isopycnal displacement appears is also derived. The results indicate that the amplitudes of IWs in the northern SCS determined by the methods developed in this study are comparable with historical regional data.
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ISSN:0143-1161
1366-5901
DOI:10.1080/01431160802175397