Mots-clés
Bassin-versant ; British Columbia ; Canada ; Coulée boueuse ; Couvert végétal ; Erosion ; Glissement de terrain ; Inventaire ; Montagne ; Pente de versant ; Photo-interprétation ; Photographie aérienne ; Statistique ; Utilisation du solAerial photography ; British Columbia ; Canada ; Erosion ; Inventory ; Land use ; Landslide ; Mountain ; Mudflow ; Photointerpretation ; Plant canopy ; Slope gradient ; Statistics ; WatershedRepresenting the landslide magnitude-frequency relation : Capilano river basin, British Columbia
Auteurs :BRARDINONI, F.
CHURCH, M.
Description :
The AA. use magnitude-frequency analysis as a statistical tool to quantify the erosion caused by landslides and debris flows. Using air-photo- and ground-derived data they show that the departure from power-law distribution customarily observed for small magnitude is an artefact of sampling deficiencies. Nonetheless, the total distribution is not sensitive to the frequency of small slides and total erosion remains adequately represented in the air-photo-derived data. Their data also demonstrate a real departure from simple scaling at much larger magnitudes, the cause of which is not definitively established.
Type de document :
Article de périodique
Source :
Earth surface processes and landforms, issn : 0197-9337, 2004, vol. 29, n°. 1, p. 115-124, nombre de pages : 10, Collation : Illustration, Références bibliographiques : 29 ref.
Date :
2004
Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)