Data/hora: 03/06/2024 06:29:07

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | SAR observing large-scale nonlinear internal waves in the White Sea
Autores: | Kozlov, Igor; Romanenkov, Dmitry; Zimin, Alexei; Chapron, Bertrand.
Data: | 2014-05
Ano: | 2014
Palavras-chave: | SAR imaging; Nonlinear internal waves; The White Sea; Vertical mixing.
Resumo: | The compiled archive of synthetic aperture radar (SAR) images acquired by the Advanced SAR (ASAR) onboard the Envisat satellite over the White Sea during the extended summer periods (May-September) between 2007 and 2011, provides the first detailed analysis of 2-D patterns of internal waves (IWs) in the White Sea. Unambiguously, the primary region of IW activity is the southwestern (SW) Gorlo Strait (GS). LW packets emerging from this area are regularly observed to reach crest lengths up to 200 km, and also to propagate a few hundred kilometers from their origin. Model results confirm that large-scale IWs can be generated every tidal cycle and are able to cross the entire sea. As suggested, the source of these packets is governed by the intense dynamics of the frontal zone in the tidal cycle over local complex bottom. As further revealed, these large-scale IWs cascade into intense large-amplitude short LW packets on the shoaling White Sea shelf, significantly impacting vertical turbulent exchange and the overall hydrology.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00195/30617/29216.pdf

DOI:10.1016/j.rse.2014.02.017

Editor: | Elsevier Science Inc
Relação: | http://archimer.ifremer.fr/doc/00195/30617/
Formato: | application/pdf
Fonte: | Remote Sensing Of Environment (0034-4257) (Elsevier Science Inc), 2014-05 , Vol. 147 , P. 99-107
Fonte: | 2014 Elsevier Inc. All rights reserved.