Land Cover Change Effects on Stormflow Characteristics across Broad Hydroclimate Representative Urban Watersheds in the United States

Urban development alters stormflow characteristics and is associated with increasing flood risks. The long-term evaluation of that exacerbate floods, such as peak time-to-peak at varying levels urbanization across different hydroclimates, limited. This study investigated the (1980s to 2010s) effects on key using observed 15 min streamflow data six broad hydroclimate representative urban watersheds in conterminous United States. results indicate upward trends downward four out watersheds. watershed Great Plains region had largest annual (decreasing) percent change (time-to-peak stormflow). With current rates, expected increase by 55.4% have a 2.71 h faster next decade.