Operational coastal map re-actualization by RADAR SAR images, examples in French Guiana, Mauritania and Cameroon

Operational coastal map re-actualization by RADAR SAR images, examples in French Guiana, Mauritania and Cameroon

The French Hydrographic Office has to publish information for navigation security in its responsible zones (French territories, West African coasts (with agreements between these countries and France), Djibouti, Viet-Nam, etc.). Nautical charts on African coasts are old and had often been establishe...

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Bibliographische Detailangaben
Hauptverfasser: Trebossen, H., Rudant, J.P., Classeau, N., Fruneau, B., Courel, M.F., Trouve, E., Deffontaines, B., Mvogo, J., Onana, V.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Ellipsoids
Extraterrestrial measurements
Floods
Global Positioning System
Information security
Navigation
Radar imaging
Sea measurements
Synthetic aperture radar
Vegetation mapping
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Zusammenfassung:The French Hydrographic Office has to publish information for navigation security in its responsible zones (French territories, West African coasts (with agreements between these countries and France), Djibouti, Viet-Nam, etc.). Nautical charts on African coasts are old and had often been established in the 1950s. Local geodetic reference systems used are not well known, so maps are not in accordance with GPS navigation. In French Guiana, coastal evolution is so important that nautical charts are obsolete. Sedimentation and erosion of mangrovia vegetation can reach one kilometre per year. We study the contribution of RADAR SAR imagery for nautical chart updates. Our interests are coastline, interidal zone delimitation, harbour structures and bathymetry (
DOI:10.1109/IGARSS.2001.978310