Evaluation de l'application des méthodes existantes de dimensionnement du procédé de biorétention aux climats froids et en présence de neige provenant de la chaussée

Eight of the current sizing and design methods proposed for bioretention facilities were evaluated for rainfall runoff and snow storage volumes for a costal cold climate in Trondheim, Norway. The RECARGA bioretention infiltration model was used to compare the performance of the methods using 10 months of observed data from a pilot scale bioretention box. The surface areas, total ponding time, number and duration of overflow events, and snow storage volumes were compared. It was found that even in a costal cold climate with several intermittent melt cycles the snow storage requirements were an important design parameter, and if more than 25% of the total snow volume should stored this became the deciding design parameter. Godkänd; 2007; Bibliografisk uppgift: Evaluation de l'application des methodes existantes de dimensionnement de procédé de bioretention aux climates froids et en présence des neiges provenant de la chaussée; 20070926 (marvik)