Analysing the relationship between typhoon-triggered landslides and critical rainfall conditions

Auteur(s) et Affiliation(s)

CHANG, K.-T.

Dept. of Geography, National Taiwan Univ., Taipei, Taiwan, Province de Chine

CHIANG, S.-H.

Dept. of Geography, National Taiwan Univ., Taipei, Taiwan, Province de Chine

LEI, F.

National Science and Technology Centre for Disaster Reduction, Sindian, Taiwan, Province de Chine

Description :
This study presents a new method for incorporating rainfall into landslide modelling and prediction. The method involves 3 steps : compiling radar reflectivity data in a QPESUMS (quantitative precipitation estimation and segregation using multiple sensors) system during a typhoon (tropical hurricane) event, estimating rainfall from radar data and using rainfall intensity and rainfall duration as explanatory variables to develop a landslide logit model. Given the logit model, this paper discusses ways in which the model can be used for computing probabilities of landslide occurrence for a real-time monitoring system or a warning system, and for delineating and mapping landslides.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2008, vol. 33, n°. 8, p. 1261-1271, nombre de pages : 11, Références bibliographiques : 48 ref.

Date :
2008

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

Langue :
Anglais