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Monitoring of hazards and urban growth in Villavicencio, Colombia, using scanned air photos and satellite imagery

Urban hazards and risks; consequences of large eruptions and earthquakes

Auteurs :
NOSSIN, J.J.
THOURET, J.-C.

Description :
A method is presented to monitor the development of geomorphic hazard areas by overlaying time series of air photos in a digital image processing system. This study deals with such hazards affecting an urban area, Villavicencio at the foot of the eastern Andes in Colombia. In this particular case, the hazards principally affect the city's links with the outside world : the only highway to the centre of Colombia is threatened by a major landslip; the civil airport, by flooding.


Type de document :
Article de monographie

Source :
GeoJournal, issn : 0343-2521, 1999, vol. 49, n°. 2, p. 151-158, Collation : Illustration, Références bibliographiques : 8 ref.

Date :
1999

Editeur :
Pays édition : Allemagne, Heidelberg, Springer

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)