Accéder directement au contenu Accéder directement à la navigation
Communication dans un congrès

Evaluation of gutter and valley materials emissions at the city scale: Statistical approach for computing gutter and valley lengths

Abstract : Roofing materials are considered as a major source of urban runoff contamination. Today, in the context of the European Water Directive (2000/60 CE), an accurate evaluation of contaminant flows from roofs is thus required at the city scale, and therefore the development of assessment tools is needed. However, at the city scale, the important diversity of roofing materials represents a difficult task for the quantification. In fact, the most restrictive step when estimating contaminant flows for large-scale territories is the estimation of the roofing materials surfaces area, for which no direct data exists. This study focuses on describing the method to evaluate gutter and valley lengths at the city scale. The proposed approach relies uses a statistical framework. The city was divided into homogenous urban areas. Then, a stratified random sampling technique was employed. The reliability of the methodology has been proved for three different urban areas (drained by sewer system) with known roofing materials distribution and known gutter and valley lengths. The obtained results show that a sample representing R=4% of the urban area leads to an absolute error less than 2% for gutter and valley length values.
Type de document :
Communication dans un congrès
Liste complète des métadonnées

Littérature citée [10 références]  Voir  Masquer  Télécharger

https://hal-enpc.archives-ouvertes.fr/hal-00963672
Contributeur : Emna Sellami <>
Soumis le : vendredi 21 mars 2014 - 16:30:58
Dernière modification le : mercredi 26 février 2020 - 19:06:15
Archivage à long terme le : : samedi 21 juin 2014 - 12:05:58

Fichier

abstract_20th_European_worksho...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00963672, version 1

Citation

Emna Sellami-Kaaniche, Bernard de Gouvello, Marie-Christine Gromaire, Ghassan Chebbo. Evaluation of gutter and valley materials emissions at the city scale: Statistical approach for computing gutter and valley lengths. 20th European Junior Scientist Workshop on Sewer Processes and Networks, Apr 2013, Graz, Austria. http://portal.tugraz.at/portal/page/portal/TU_Graz/Einrichtungen/Institute/Homep./i2150/veranst/e. ⟨hal-00963672⟩

Partager

Métriques

Consultations de la notice

287

Téléchargements de fichiers

378