Author(s): Carola Marella; Anna Spandre; Brandon Winfrey; Giovanna Grossi
Linked Author(s): Giovanna Grossi
Keywords: No Keywords
Abstract: Urban stormwater systems are increasingly exposed to clustered rainfall patterns, requiring a deeper understanding of recovery dynamics in biofiltration systems. Although antecedent soil moisture is known to influence infiltration and drainage behaviour, the response of biofilters under consecutive storm events remains insufficiently characterised. This study experimentally investigates the hydrologic performance of raingarden columns under clustered storm conditions, evaluating recovery dynamics across controlled antecedent dry periods and comparing distinct hydraulic conditions (healthy, surface clogged, preferential flow). Results reveal distinct diagnostic moisture signatures and evidence of hydrologic memory, with divergence among conditions increasing as drying duration lengthens.
Year: 2026