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	Provedor de dados ArchiMer (3) Autor Festa, Jf (1) Gohin, Francis (1) Langlois, Gilbert (1) Molinari, Rl (1) Ould-dedah, S (1) Serpette, Alain (1) Shaw, Rf (1) Wiseman, Wj (1) Mais... Palavra-chave Température superficielle (3) Analyse objective (2) Objective analysis (2) Sea surface temperature (2) Afrique du Nord-Ouest (1) Analyse statistique (1) Continental shelf (1) Fonction de structure (1) Internal waves (1) Interpolation objective (1) Mauritania (1) Mauritanie (1) Northwest Africa (1) Objective interpolation (1) Ondes internes (1) Sea-surface temperature (1) Statistical analysis (1) Structure function (1) Talus continental (1) Teledetection (1) Mais... Tipo do documento Text (3) Ano 2000 (1) 1999 (1) 1990 (1) País France (3) Idioma Inglês (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Refroidissements locaux aux abords du talus continental Armoricain ArchiMer Langlois, Gilbert; Gohin, Francis; Serpette, Alain. Infrared measurement at the sea surface, which constitutes an operational technology in remote-sensing, has become essential for the study of ocean dynamics. Nevertheless, observations are only usable when clouds do not mask infrared radiation coming from the ocean, a condition which rarely pertains in the Bay of Biscay as a whole. lt is consequently a matter of primary concern to have at one's disposai an effective method which permits the computation of mean SST fields from a chronological succession of incomplete images. In the case under consideration, "kriging" is the most widely practised method of performing geostatistical estimates. Before mapping isotherms, temperatures are estimated by interpolation on a regular gridnet. The process was applied... Tipo: Text Palavras-chave: Ondes internes; Talus continental; Température superficielle; Télédétection; Analyse objective; Internal waves; Continental shelf; Sea-surface temperature; Teledetection; Objective analysis. Ano: 1990 URL: http://archimer.ifremer.fr/doc/00131/24236/22229.pdf Spatial and temporal trends of sea surface temperature in the northwest African region ArchiMer Ould-dedah, S; Wiseman, Wj; Shaw, Rf. The timing and structure of sea surface temperature (SST) changes were investigated using data from the continental shelf of the northwest African region and from coastal stations in Mauritania. Empirical Orthogonal Function analysis of the data revealed differences between northern regions with permanent upwelling, and southern regions where the upwelling is seasonal. It is then hypothesized that shifts in the onset and duration of upwelling may be occurring. Furthermore, the Mauritanian shelf area, a transition zone between the northern and southern regions, appears to go through a series of cooling and warming trends, which seem to be part of a long-term process affecting the northwest African coast. In this regard. it is shown that there is a strong... Tipo: Text Palavras-chave: Température superficielle; Upwelling; Tendance; Mauritanie; Afrique du Nord-Ouest; Sea surface temperature; Upwelling; Trends; Mauritania; Northwest Africa. Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43609/43910.pdf Effect of subjective choices on the objective analysis of sea surface temperature data in the tropical Atlantic and Pacific oceans ArchiMer Molinari, Rl; Festa, Jf. Many subjective choices are required to perform an objective interpolation (OI) analysis of environmental variables. Herein, we consider the effects on the statistical analysis of sea surface temperature (SST) using (1) a structure function or covariance analysis, (2) different analytical expressions to represent the statistics of the raw data, and (3) different historical SST data sets. The historical data sets are the well-sampled Comprehensive Ocean-Atmospheric Data Set (COADS) and the poorly sampled historical expendable bathythermograph (XBT) data set. Results from these analyses are used to generate error maps for a poorly-sampled, two month XBT array and a proposed well-sampled profiling float array. For the relatively data-rich GOADS analysis,... Tipo: Text Palavras-chave: Analyse objective; Température superficielle; Fonction de structure; Analyse statistique; Interpolation objective; Objective analysis; Sea surface temperature; Structure function; Statistical analysis; Objective interpolation. Ano: 2000 URL: http://archimer.ifremer.fr/doc/00325/43573/44041.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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