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	Provedor de dados 42 (2) Autor Violante-Carvalho,Nelson (2) Accetta,Domenico A. (1) Ostritz,Frederico (1) Paes-Leme,Rafael B. (1) Palavra-chave Wind waves (2) Campos Basin (1) Heave-pitch-roll buoy measurements (1) Max-Planck Institut (MPI) Algorithm (1) SWAN model (1) Synthetic Aperture Radar (ERS-SAR) (1) WAM wave model (1) Wave diffraction (1) Wave reflection (1) Wave transformations in a harbor (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última On the retrieval of significant wave heights from spaceborne Synthetic Aperture Radar (ERS-SAR) using the Max-Planck Institut (MPI) algorithm 42 Violante-Carvalho,Nelson. Synthetic Aperture Radar (SAR) onboard satellites is the only source of directional wave spectra with continuous and global coverage. Millions of SAR Wave Mode (SWM) imagettes have been acquired since the launch in the early 1990's of the first European Remote Sensing Satellite ERS-1 and its successors ERS-2 and ENVISAT, which has opened up many possibilities specially for wave data assimilation purposes. The main aim of data assimilation is to improve the forecasting introducing available observations into the modeling procedures in order to minimize the differences between model estimates and measurements. However there are limitations in the retrieval of the directional spectrum from SAR images due to nonlinearities in the mapping mechanism. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Wind waves; Synthetic Aperture Radar (ERS-SAR); Max-Planck Institut (MPI) Algorithm; Campos Basin; WAM wave model; Heave-pitch-roll buoy measurements. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000400012 Diffraction and reflection of irregular waves in a harbor employing a spectral model 42 Violante-Carvalho,Nelson; Paes-Leme,Rafael B.; Accetta,Domenico A.; Ostritz,Frederico. The SWAN wave model is widely used in coastal waters and the main focus of this work is on its application in a harbor. Its last released version - SWAN 40.51 - includes an approximation to compute diffraction, however, so far there are few published works that discuss this matter. The performance of the model is therefore investigated in a harbor where reflection and diffraction play a relevant role. To assess its estimates, a phase-resolving Boussinesq wave model is employed as well, together with measurements carried out at a small-scale model of the area behind the breakwater. For irregular, short-crested waves with broad directional spreading, the importance of diffraction is relatively small. On the other hand, reflection of the incident waves is... Tipo: Info:eu-repo/semantics/article Palavras-chave: Wind waves; SWAN model; Wave reflection; Wave diffraction; Wave transformations in a harbor. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400019 Registros recuperados: 2 Primeira ... 1 ... Última

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