Reference : Tracking landslide evolution over decades: application of aerial digital photogrammetry ...
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/5991
Tracking landslide evolution over decades: application of aerial digital photogrammetry to the Oudenaarde area (W Belgium)
English
Dewitte, Olivier mailto [Université de Liège - ULg > Département de géographie > Unité de géographie physique et quaternaire (UGPQ) >]
Jasselette, Jean-Claude [Région Wallonne > Ministère de l’Équipement et des Transports > Direction de la Topographie et de la Cartographie >]
Cornet, Yves mailto [Université de Liège - ULg > Département de géographie > Cartographie et systèmes d'information géographique >]
Collignon, Albert [Université de Liège - ULg > Département de géographie > Département de géographie >]
Demoulin, Alain mailto [Université de Liège - ULg > Département de géographie > Unité de géographie physique et quaternaire (UGPQ) >]
2007
S08-04
Yes
No
International
Society for Mathematical Geology XIth International Congress
3-8 septembre 2006
Université de Liège
Liège
Belgique
[en] Deep-seated landslide ; kinematics ; aerial photogrammetry ; DTM ; Belgium
[en] In order to include some kinematic information within landslide hazard
prediction models, we estimated landslide motion in the medium term (i.e. a few decades) by
comparing precise landslide topography reconstructions at different dates. Precise
multitemporal 3D data of the 13 old deep-seated landslides developed on two hills close to the
town of Oudenaarde (W Belgium) were obtained by digital stereophotogrammetry using
aerial photographs of three different periods (1996, 1973 and 1952). From these data, six
DTMs (3 different dates for each investigated hill) were produced with an overall RMS error
of ~50 cm. The obtained DTMs were subtracted from each other in order to determine the
vertical displacement of each pixel during the considered time interval. Globally, movements
are observed in all the landslides and they generally correspond to a rotational pattern.
Researchers
http://hdl.handle.net/2268/5991

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