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The shallow and deep bathymetry of the Banco Chinchorro reef in the Mexican Caribbean

González, Alicia | Torruco Gómez, Daniel [autor/a] | Liceaga, Ángeles [autor/a] | Ordaz, José [autor/a].
Tipo de material: Artículo
 impreso(a) 
 
  y electrónico  
  Artículo impreso(a) y electrónico Tema(s): Arrecifes de coral | Uso sostenibleDescriptor(es) geográficos: Reserva de la Biosfera Banco Chinchorro (Quintana Roo, México) Nota de acceso: Acceso en línea sin restricciones En: Bulletin of Marine Science. volumen 73, número 1 (July 2012), páginas 15-22. --ISSN: 0007-4977Número de sistema: 51435Resumen:
Inglés

This paper presents the use of two complementary remote sensing techniques in the Banco Chinchorro: satellite image and echosound. A cartographic relation was established between the shallower reef depths recorded by Landsat-MSS and those of greater depth recorded with echosound. A bathymetric map of the shallow lagoon areas and reefcrest was generated from the Landsat-MSS image using exponential correspondence between reef depths and corrected digital values in the image. The reef lagoon exhibits a bathymetric gradient from 1 m in the north to 25 m in the south. The echosound data show a pinnacle with depths greater than 300 m. Largely due to intense coral growth, the most pronounced slopes are found near the leeward reefcrest, and the more gradual on the windward margin. The use of these two complementary remote sensing techniques proved an efficient tool for characterizing reef morphology when depth strongly affects the efficacy of one or the other technique. The analytical delimitation of this complex reef is increasingly important because of its recent designation as a biosphere reserve area by the Mexican government. The present study is a pioneering effort that could be used as a pilot in future administrative, conservation, and sustainable management studies.

Recurso en línea: http://biblioteca.cinvestav.mx/indicadores/texto_completo/cinvestav/2003/114853_1.pdf
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This paper presents the use of two complementary remote sensing techniques in the Banco Chinchorro: satellite image and echosound. A cartographic relation was established between the shallower reef depths recorded by Landsat-MSS and those of greater depth recorded with echosound. A bathymetric map of the shallow lagoon areas and reefcrest was generated from the Landsat-MSS image using exponential correspondence between reef depths and corrected digital values in the image. The reef lagoon exhibits a bathymetric gradient from 1 m in the north to 25 m in the south. The echosound data show a pinnacle with depths greater than 300 m. Largely due to intense coral growth, the most pronounced slopes are found near the leeward reefcrest, and the more gradual on the windward margin. The use of these two complementary remote sensing techniques proved an efficient tool for characterizing reef morphology when depth strongly affects the efficacy of one or the other technique. The analytical delimitation of this complex reef is increasingly important because of its recent designation as a biosphere reserve area by the Mexican government. The present study is a pioneering effort that could be used as a pilot in future administrative, conservation, and sustainable management studies. eng

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