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DIGITAL.CSIC
Article . 2010 . Peer-reviewed
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Sea surface mesoscale structures imaged by the synthetic aperture radar

Authors: Martínez, Antonio; Font, Jordi; Moreno, Victoriano; García-Ladona, Emilio;

Sea surface mesoscale structures imaged by the synthetic aperture radar

Abstract

[ES] El radar de abertura sintética (SAR) es un sensor activo que trabaja en el intervalo de frecuencias de las microondas. Su característica distintiva es la síntesis de una antena de garndes dimensiones mediante el seguimiento de las fases de los pulsos recibidos durante un timepo de integración. La posibilidad de producir imágenes de alta resolución con independencia de las condiciones meteorológicasd hacen del SAR un sensor muy atractivo para la observación remota del océano. En este trabajo se presentan las características del SAR, las técnicas de proceso de sus imágenes y sus aplicaciones al estudio de estructuras superficiales del mar, especialmente aquellas ligadas a la variabilidad de mesoescala de la circulación. Se describe una de las primeras imágenes SAR obtenidas en 1991 por el satélite europeo ERS-1 en el Mediterráneo occidental

[EN] The synthetic aperture radar (SAR) is an active sensor working in the frequency range of the microwaves. Its distinctive characteristic is the synthesis of a large antenna through the study of the phase of the received pulses over an integration time. The possibility of producing high resolution images regardless of the weather conditions makes SAR a very suitable sensor for the remote sensing of the ocean surface. In this paper we present the main characteristics of SAR, several techniques of image processing, and its applications to the study of sea surface structures, especially those related to mesoscale currents. We describe one of the first SAR images acquired by the European ERS-1 satellite in 1991 in the western Mediterranean

This study is funded by the Spanish National Program on Marine Resources (project MAR89-0550) and by INISEL ESPACIO through a research contract with CSIC

10 páginas, 4 figuras

Peer reviewed

Country
Spain
Keywords

Surface layer currents, Microwave remote sensing, ERS-1, Oceanografía física, Physical oceanography, Teledetección por microondas, Corrientes superficiales, SAR

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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