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Levantamiento Geofísico e Hidrográfico PDF Imprimir Correo electrónico
Lunes 08 de Junio de 2009 10:05

 El 17 de mayo, se realizaron  las pruebas de adquisición del Magnetómetro Marino y el 20 de mayo el Centro de Investigaciones Oceanográficas e Hidrográficas CIOH, a través de una de sus unidades a flote, el Buque Oceanográfico ARC “Providencia” y con el apoyo académico de la Universidad Distrital “Francisco José de Caldas” de Bogotá,  realizó el levantamiento Geofísico e Hidrográfico en un sector aledaño a la Isla de Tierra Bomba en Cartagena donde se encuentra hundido el Ex ARC Pedro de Heredia.

 

 

Se adquirieron datos magnéticos e hidrográficos en cercanías de la isla de Tierra Bomba, en un proyecto que busca entender el comportamiento anómalo de barcos hundidos, que servirá para los  futuros proyectos con  fines de Prospección Geofísica. Conocidas las coordenadas geográficas del buque “Pedro de Heredia” que se hundió en el año 2007;  se modeló la respuesta anómala magnética  de este, cuyos resultados  se muestran en las figuras  1 y 2  cubriendo un área de  22.400 m2  con 9 líneas, con una separación de líneas entre sí de 20m.

Con el fin de contrastar esta información, se realizó una segunda grilla de datos a menor escala que incluye la zona inicial de investigación, cubriendo un área de 1 km2 con 23 líneas, con una separación de líneas entre sí de 50m.  

 


Figura1. Registro anomalía en 3D del Ex ARC Pedro de Heredia

El 21 de  mayo, se realizó captura de datos en sector cercano a Punta Gigante, con 20 líneas separadas 80 metros, cubriendo un área de 5 km2.  Después se adquieron 41 líneas separadas 25 metros,  cubriendo un área de 1.3 km2, en una área de densificación en la misma zona.  Esta labor llevada a cabo por estos entes Estatales, que realizan investigación en ciencias de la Tierra, pretende establecer la metodología en la toma de este tipo de información, abriendo las oportunidades para realizar en el futuro cercano levantamientos con grandes alcances  en temas de prospección geofísica con fines energéticos y estudio del campo magnético, para mejorar el modelo geoidal del país.  Desde todo punto de vista este proyecto de adquisición de los datos es el  comienzo de un futuro promisorio en la Investigación Geofísica Marina adelantada por el CIOH, en la cual será fundamental el aporte académico de las universidades del país, con formación especializada  en Ciencias de la Tierra, como la Universidad Distrital.

De manera simultánea se hicieron los respectivos levantamientos hidrográficos, con la ecosonda multihaz de baja frecuencia, instalada a bordo del ARC Providencia, con el fin de tener información de dos tipos, la magnetométrica y la hidrográfica, tratando de hallar una correlación entre la morfología del fondo marino y la variación del campo magnético de la misma área. Como valor agregado a este tipo de levantamientos se obtuvo la formación del personal y el adiestramiento necesario para realizar este tipo de maniobras de manera simultánea, cuya información se complementa al saber la profundidad del agua por donde pasara el pescado del magnetómetro, el cual esta siento arrastrado por el buque y viene unos cuantos metros atrás de el.

 
 

Figura 2. Anomalía registrada por el Ex ARC Pedro de Heredia


 

 Figura3. Área de Estudio
 
 Figura 4. Vista 3D del área

 
 Figura 5 Vista 3D Ex ARC Pedro de Heredia

Equipos Utilizados

Ecosonda Multihaz Atlas Hydrosweep MD2D

GPS C-NAV 2050 M

Sensor de movimiento TSS DMS 3-05

Girocompás Anchutz STD 20

erfilador de Velocidad del Sonido VALEPORT 650-MK2

Magnetometro Marino G882

Botella de Telemetría Geometrics

Software Hypack/Hysweep 6.2b programa de recolección Hidrográfico

Software Caris Hips ver 6.1 programa de procesamiento Hidrográfico

Software Maglog ver 3.26 programa de adquisición magnético

Software Magmap200 programa de procesamiento preliminar de datos 


Contacto

 SJMHI Jose Arturo Arias C.

Jefe Levantamientos hidrográficos

Area de Hidrografia Esta dirección electrónica esta protegida contra spambots. Es necesario activar Javascript para visualizarla  

 

Profesor Andres Cardenas Contreras

GeofisicoDocente Universidad Distrital

Esta dirección electrónica esta protegida contra spambots. Es necesario activar Javascript para visualizarla


 

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Angie  - Felicitaciones!!!   |2009-06-09 07:17:36
Ojala despues de esta experiencia se concreten muchos proyectos de
investigación, es en realidad un trabajo muy interesante.
leonardo  - Congratulations!   |2009-06-12 05:05:51
Que Dios Bendiga este tipo de actividades que enriquecen la capacidad Cientifica
y technologica de nuestro Pais, mis más sinceras felicitaciones a todos los que
participaron en este levantamiento.
Yasmith Avilez Pèrez  - Administrador de Empresas   |2009-06-30 06:47:14
JOSELITO, TIENES UN BUEN EQUIPO, BUEN TRABAJO!
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QUE EMPRENDAN Y QUE BUSQUEN EL BIENESTAR GENERAL.
edgar  - sinergia Universidad entes oficiales   |2009-07-22 12:40:56
Gran aporte de personal calificado y es el inicio de futuras investigaciones
donde se involucra la academia e istituciones publicas para el desarrollo en un
campo poco estudiado en Colombia.Felicitaiones.
Camilo  - Excelente proyecto   |2010-01-29 15:24:04
Excelente propuesta investigativa y a la vez llevada a la praxis con la
tecnologia que cuentan los entes del Estado y trabajando mancomunadamente el
CIOH y la Universidad Distrital con su Proyecto Curricular de Ingeniería
Catastral y Geodesia.
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