Shipwrecks, Snags and Obstructions : Shipwrecks, Snags and Obstructions :

DefinitionDefinition

Wreck : Everything, being from up water and laying on the bottom can considerate as a wreck as long he is identified

ObstructionAnd Snagg :

Obstructions could be wreck but also any unidentified object on the bottom.Rock, wood, ancient piece of shipwreck , cable

Different scales of dangerSpatial

Temps

Punctual

Linear

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

DangerDanger

Pollution Shipwrecks, Cargo

Diving Shipwrecks, rocks

Fishing Shipwrecks ,snags, Brittle star, rocky bottom, cable

Navigation Isolated danger

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

Database CreationDatabase Creation

Progressive buildingProgressive building

1980

CERES

Fishing vesselsGPS numbers

Hand made charts

Shipwreck and Obstruction : Shipwreck and Obstruction :

Database EvolutionDatabase Evolution

1990

1995

1999

2003

1 700 location (Seine bay)

5 000 location (France)

7 000 location (France)

15 000 location (Europe)

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

Database EvolutionDatabase Evolution

2000 : CERES - INTECHMER Collaboration

Database software development

15 000 locations of shipwrecks and snags - 8 000 text files

10 000 different documentations

150 fields per shipwreck1 page of text

Name, build, year of building, number of crews, engine.

Date of sank.

Casualty of sinking ….. Etc..

Shipwrecks and Obstruction : Shipwrecks and Obstruction :

DATA processingDATA processing

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

Side Scan SonarSide Scan Sonar

Result

Tow Fish

Principe

ShipwrecksShipwrecks and Obstruction : and Obstruction :

Vidéo / Photo / DrawingVidéo / Photo / Drawing

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

DATABASE utilityDATABASE utility

Preventive utility : Network exchange of snags locations

Obstructions and snags identification, difference between old wooden remains and rocks

Neutralization of submerged dangerous product

Granulates exploitation

Dredging

Pipeline and underwater cable

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

DATABASE utilityDATABASE utility

Cultural and history

16th century shipwreck

US Civil wars shipwreck

D Day shipwreck

Shipwrecks and Obstructions : Shipwrecks and Obstructions :

FutureFuture

Collaboration between, companies, states, unofficial and official oceanographic organization

Exchange of data standardized

Compatibility between GIS and navigation software

Links between European oceanographic services

Northern Europe extension