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Observatoire Midi-Pyrénées |  |
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Observatoire Midi-Pyrénées | |
| HAL: hal-00023198, version 1 |
| DOI: 10.1016/j.dynatmoce.2005.06.001 |
| Detailed view |  Export this paper |
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| Dynamics of Atmospheres and Ocean 40,, 4 (2005) 254-282. |
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| Combined wavelet and principal component analysis (WEof) of a scale oriented model of coastal ocean gravitywaves. |
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| I. Pairaud 1F. Auclair 1 |
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| (2005) |
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| Coastal ocean numerical modeling is basically the representation of the dynamics of the coastal ocean in a chosen range of length scales and over an associated frequency band, including the modeling of both coherent processes and associated transient processes. The ocean dynamical features can be individually identified by combining wavelet analysis for time and frequency localization and principal component analysis to “decorrelate” physically consistent structures. In the present paper, the so-called WEof analysis is applied for the extraction of external gravity waves and internal gravity wave lower modes in a simple case of a flat bottom, constant Brunt-Väisälä ocean. It is shown that, with some well known restrictive assumptions, WEof analysis is an efficient candidate for the recognition of frequency localized dynamical processes. |
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| 1: | Laboratoire d'aérologie (LA) |
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CNRS : UMR5560 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| Subject | : | Physics/Physics/Atmospheric and Oceanic Physics |
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| Wavelet analysis – Empirical orthogonal function – Internal gravity waves – External gravity waves – Coastal oceanography |
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| hal-00023198, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00023198 | |
| oai:hal.archives-ouvertes.fr:hal-00023198 | |
| From: Maria-Isabel Ledig | |
| Submitted on: Friday, 21 April 2006 10:16:19 | |
| Updated on: Friday, 17 September 2010 15:31:40 | |
