Susceptibility assessment of rainfall-triggered flows and slides in the Central-Eastern Pyrenees
Tipus de documentComunicació de congrés
Condicions d'accésAccés restringit per política de l'editorial
Rainfall-induced flows and slides are hazardous processes in mountainous regions and suscep-tibility assessments with resulting maps are helpful tools for land-use planners. In the present study, all the available information on recent events has been gathered and incorporated in an inventory. The governing fac-tors of the 2262 entries were analyzed and preliminary susceptibility matrices were established. Two different terrain units were applied and compared: grid cells and first-order catchments. The results showed that slope angle between 30 and 35º and land cover classes like debris screes or grassland are the most significant fac-tors. In addition, the Melton Ratio higher than ~0.7 in the first-order catchments seems to be another critical parameter. Finally, two types of susceptibility maps were created, although the ones working with first-order catchments look more appropriate for the application at regional scale and the use for land-use planning.
CitacióHurlimann, M., Lantada, N., Gonzalez, M., Pinyol, J. Susceptibility assessment of rainfall-triggered flows and slides in the Central-Eastern Pyrenees. A: International Symposium on Landslides. "Landslides and Engineered Slopes. Experience, Theory and Practice: Proceedings of the 12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016)". Napoli: CRC Press, 2016, p. 1129-1136.
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