Repositorio Digital Marítimo, Fluvial y Costero

Molina Márquez, Amparo and Molina Márquez, Consuelo and Chevillot, Phillipe. (1992). La percepción remota aplicada para determinar la circulación de las aguas superficiales del Golfo de Urabá y las variaciones de su línea de costa. Boletín Científico CIOH (11). pp. 43-58. doi https://doi.org/10.26640/22159045.45

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Abstract

This work is a results of project "Hydrologic and Geologic study of the Urabá Gulf" corried out jointly wfth the Technical French Mission from 1988, which hada two year duration. At the CIOH, trough the Centre Nationale de Recherche Scientffique (CNRS) ANIM program the proccessing of a SPOT lmage took place; this image was received on an area during the mean stage (February/89) in order to determine the surface water circulation in the Gulf during such time using a turbidity feather (distríbutíon of material in suspension) of rivers flowíng there (Atrato, León, Turbo, etc). At the Bordeaux Uníversity (1991) a treatment of this image with the Perico/ar program was done for visualing the Gulf shore contour and the incidence of the wave fronts on the Bocatarena surroundings of Atrato river, in arder to analíze about the latter the. energy depositíon and concentration of waves around this section of the coast. The coasta! morpholígical changes (eros ion -sedimentation) ocurred within this area during the last recent years were obtained starting from comparisons of shore fines from nautical charts of 1938 and 1983 and from SPOT lmage coastal contour of 1989. A/so, ft was possible to determine the sea bottom mareations through bathymetric comparisons of the abovementioned charts. The Gulf surf ace water circulation shows two directions: N.S. towards the west sector which determines the East -west direction with a tendíng towards the south ot turbidity feather in front ot the river A trato flowíng; influenced by the action of trade winds during the age (mean) of the year; and N -Son the Gulf west zone where the turbidfty feather are affected towards the north and are loaded with plenty of material in suspension. The loss of large extensions of shore, the formation of /ftoral drifts and the development of deltas have determined important morpho!ogícal changes on the Gulf shore líne in the recent years. Contrary to the shore fine where erosion is predomínant overs sedimentation the Gulf bottom presents a great sediment acumulation towards its own east and central part specifically at Bahía Colombia.

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Item Type:	Article
Uncontrolled Keywords:	Oleaje. Erosión. Sedimentos
Geographical coverage :	Caribe colombiano. Golgo de Urabá
Depositing User:	Dirección General Marítima
ISSN:	0120-0542
Official URL:	http://www.cioh.org.co
Identification Number:	https://doi.org/10.26640/22159045.45

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