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Artículo

Environmental characteristics of San Matias gulf obtained from Landsat TM and ETM+ data

Gagliardini, Domingo AntonioIcon ; Rivas, Andres LujanIcon
Fecha de publicación: 2004
Editorial: Universidad de Concepción
Revista: Gayana (Concepción)
ISSN: 0717-652X
e-ISSN: 0717-6538
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Meteorología y Ciencias Atmosféricas

Resumen

The San Matías Gulf, located between 40 47' S and 42 13' S on the Atlantic coast of South America, with an area of approximately 18 000 km2, is the second largest in Argentina. This gulf has been studied by means of historical data obtained in oceanographic campaigns carried out before 1990 and with satellite images of low-resolution (1000 m) NOAA-AVHRR obtained from 1985. The analysis of this information permitted to infer some environmental characteristics related to temperature, salinity, productivity and circulation. The objective of the present work is to analyze LANDSAT-TM and ETM+ data from 1997-2003. Approximately 30 free of clouds images, obtained in different times of the year, were processed. The thermal channel allowed to obtain a detailed distribution of surface temperature, to identify thermal fronts and to analyze its variability along the year. Also, this channel and channel 1 permit to observe the influence, in the southern part of the gulf, of the water coming from the continental shelf and San José Gulf. The results obtained did not only contributed to corroborate the environmental characteristics already inferred previously from cruise data, but also, to identify others, so far unknown.
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/29655
DOI: http://dx.doi.org/10.4067/S0717-65382004000200034
URL: http://ref.scielo.org/28bqn4
Colecciones
Articulos(CCT-CENPAT)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CENPAT
Citación
Gagliardini, Domingo Antonio; Rivas, Andres Lujan; Environmental characteristics of San Matias gulf obtained from Landsat TM and ETM+ data; Universidad de Concepción; Gayana (Concepción); 68; 2; 2004; 186-193
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