Hot-spots of internal wave activity off iberia revealed by multisensor remote sensing satellite observations - Spotiwave

• Type: Article in International Conference Proceedings Book
• Date: 2004

Authors

Azevedo, A (Author) Other; Correia, S (Author) Other; Da Silva, JCB (Author) Other; New, AL (Author) Other

Conference proceedings International

Title: European Space Agency, (Special Publication) ESA SP

Pages: 125-132

Proceedings of the Second Workshop on Coastal and Marine Applications of SAR

Svalbard, 8 September 2003 through 12 September 2003

Indexing

ISI Web of Knowledge

Scopus - 1 Citation

Other information

Authenticus ID: P-007-D5M

Abstract (EN): Some results of a study of the distribution of internal waves (IWs) off the Iberian Peninsula based on ERS SAR observations are presented. In particular we show observations of very large amplitude internal solitary waves (ISWs) propagating in the deep ocean West of the Galicia Bank, and explain their generation as resulting from semi-diurnal frequency internal tides emanating from the bottom slopes. We determine possible generation sites of these internal tidal waves and their propagation pathways. The most energetic internal tide generation sites are calculated from the distribution of the internal tidal forcing, adapted from a model proposed by Baines [1]. This method is being used to map the internal wave activity off the Iberian Peninsula, identifying the most energetic IW generation sites assuming that the internal tidal waves are generated by the interaction of the semi-diurnal (barotropic) tide with the bottom topography. In addition we reveal SeaWiFS observations of large internal tides with a clear signature of enhanced levels of near-surface chlorophyll in the Bay of Biscay.

Language: English

Type (Professor's evaluation): Scientific