Areal-reduction factors for the Colorado Front Range and analysis of the September 2013 Colorado Storm
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Information about extreme precipitation is of interest in hydrologic engineering applications such as dam design, river management, and rainfall-runoff-relations. These require knowledge on the spatial and temporal variability of precipitation over an area. In order to obtain areal average values for hydrologic modeling purposes, point rainfall amounts are often transformed to average rainfall amounts over a specified area. This is addressed using depth-area curves which require the use of areal reduction factors (ARFs). The Colorado Department of Transportation (CDOT) Flood Hydrology Committee ...