Very high spatial resolution imagery for channel bathymetry and topography from an unmanned mapping controlled platform

Multi-scale characterization and evolution of channel forms in gravel-bed rivers

Auteurs :
LEJOT, J.
DELACOURT, C.
PIÉGAY, H.
FOURNIER, T.
TRÉMÉLO, M.-L.
ALLEMAND, P.
RINALDI, M.

Description :
A small radio-controlled motorized vehicle flying at low altitude was used to study both channel water depth and gravel bar geometry. The VHR imagery provided by this equipment allowed both channel bathymetry and a high accuracy photogrammetric digital elevation model (DEM) to be realized. Using case studies from the Ain and the Drôme Rivers in France, the accuracy of the results is presented and the various challenges associated with the new platform are discussed.


Type de document :
Congrès

Source :
Gravel-Bed Rivers Conference, 6, St. Jakob, Autriche, 2005-09, Earth surface processes and landforms, issn : 0197-9337, 2007, vol. 32, n°. 11, p. 1705-1725, nombre de pages : 21, Collation : Illustration, Références bibliographiques : 48 ref.

Date :
2007

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley