Skip to Main content Skip to Navigation
Conference papers

Use of post-event surveys of impacts on railways for the evaluation of the IRIP method for surface runoff mapping

Abstract : Indicator of Intense Pluvial Runoff (French Acronym) - is a method to map the susceptibility of territories to surface runoff generation, transfer and accumulation. The method is based on a geomatic combination of landscape factors extracted from topography, land use and soil type. This study is part of the method evaluation process and suggests using information from post-event surveys of surface runoff events to evaluate the agreement between the IRIP maps and the field observations. Surface runoff susceptibility maps are produced at five meters resolution for three impact areas on railways with different infrastructure and environment configurations. First, information categories are extracted from the post-event surveys, and then the IRIP maps are analyzed to see if and how the information categories are retrieved. This study shows that the IRIP maps fit the impact description. The areas susceptible to surface runoff transfer fit the gullies locations and the areas susceptible to surface runoff accumulation fit the sediment deposit traces. The comparison also highlights that the IRIP maps can give further information on the event spatial dynamics. Given the simplicity and the robustness of the mapping method, IRIP can be a tool to perform surface runoff post-event surveys and to improve the surface runoff hazard assessment.
Complete list of metadata

Cited literature [29 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01549762
Contributor : Import Ws Irstea Connect in order to contact the contributor
Submitted on : Thursday, June 29, 2017 - 10:05:00 AM
Last modification on : Wednesday, May 12, 2021 - 9:12:01 PM
Long-term archiving on: : Thursday, January 18, 2018 - 1:35:55 AM

File

ly2016-pub00052209.pdf
Explicit agreement for this submission

Identifiers

Collections

Citation

L.R. Lagadec, P. Breil, B. Chazelle, Isabelle Braud, L. Moulin. Use of post-event surveys of impacts on railways for the evaluation of the IRIP method for surface runoff mapping. 3rd European Conference on Flood Risk Management (FloodRisk 2016), Oct 2016, Lyon, France. pp.10005, ⟨10.1051/e3sconf/20160710005⟩. ⟨hal-01549762⟩

Share

Metrics

Record views

362

Files downloads

343