Repositorio Digital Marítimo, Fluvial y Costero

Peña Gómez, Jairo Javier. (1995). Un modelo de caja aplicado al trasporte de partículas y tiempo de residencia de las aguas del sector "El Pindo" (Ensenada de Tumaco). Boletín Científico CCCP (5). pp. 5-35. doi https://doi.org/10.26640/01213423.5.5_35

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Abstract

This study was carried out in order to apply severa! principies of the physical oceanography to determine the possible reasons for persistent law quality water conditions in ''El Pindo" (Tumaco) area and propase a mechanism to recover physical, chemical and biologica/ conditions. The field work was done to determine different hydrological factors (temperature, salinity, suspended solids, dissolved oxygen, nutrients and transparency) as well as bathymetric, hydrodinamic and meteorological characteristics of the selected area. The obtained data were statistically processed and some of them were considered to outline a box model and consequently determine the residence time of these waters. During the period of the study, it was found that shallaw waters with wide sand banks causing the reduced shipway, are predominant. Salinity in high tide presents a remarkable variation between the surf ace and bottom values which were reported to be between 21.00 - 33.15o/oo and 23.22 - 33.22 aloa, respectively. Temperature variations along the water column were registered oscillating between 23.20 - 29.52 ºC and 26.88 - 29.18 ºC in botton and surface, respectively. This area was found to have a particular hydrodinamic circulation pattern, existing an evident difference in the currents course in each tide period due to the involved water volumes. It is concluded that the low water quality of ''El Pindo" area is not due to the circulation pattern but is caused by the bad bottom sediment quality and that could be improved by dredging to clean the waste area. Considering the calculated residence times far these waters (2 - 5 days), it is recommended that control on sawmill activities should be carried out since these are the main source of material deposits in the bottom that affect the water quality and reduce the deep areas causing a negative impact both on the predominant circulation pattem and chemical and biological characteristics of the bottom sediments.

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Item Type:	Article
Uncontrolled Keywords:	Salinidad. Temperatura. Oxígeno. Corriente oceánica
Geographical coverage :	Pacífico colombiano. Ensenada de Tumaco. El Pindo
Depositing User:	Dirección General Marítima
ISSN:	0121-3423
Official URL:	http://www.cccp.org.co
Identification Number:	https://doi.org/10.26640/01213423.5.5_35

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