Ocean wave modes in the South Atlantic by a short-scale simulation

The shortage of observational ocean wave data in the South Atlantic (SA) Ocean has resulted in numerical modelling becoming the most used tool for the investigation of wave climate in this oceanic region. In this article, the global model WAve Model (WAM) is used to simulate ocean waves in the SA fr...

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Bibliographic Details
Published in:Tellus A: Dynamic Meteorology and Oceanography
Main Authors: Cláudia K. Parise, Leandro Farina
Format: Article in Journal/Newspaper
Language:English
Published: Stockholm University Press 2012
Subjects:
ocean waves modelling
empirical orthogonal functions
singular value decomposition
South Atlantic
ocean wave climate
Oceanography
GC1-1581
Meteorology. Climatology
QC851-999
Wave Peak
South Atlantic Ocean
Online Access:https://doi.org/10.3402/tellusa.v64i0.17362
https://doaj.org/article/c47d84d2ea1f4e58a97e04f384ed0036
Description
Summary:The shortage of observational ocean wave data in the South Atlantic (SA) Ocean has resulted in numerical modelling becoming the most used tool for the investigation of wave climate in this oceanic region. In this article, the global model WAve Model (WAM) is used to simulate ocean waves in the SA from June 2006 to July 2007 with high time resolution. The four leading modes of the significant wave height, swell, wave peak period and surface wind velocity based on the empirical orthogonal functions (EOF) and singular value decomposition (SVD) methods are computed and analysed. The results show a number of specific characteristics present in the short-scale regime which emphasise and, in some cases, reduce some of the aspects of the global wave climate. The interaction between atmosphere and ocean has been found in several fields and modes that were examined. A relationship between tracks of extratropical cyclones are observed.

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