Selection of Low Impact Development Infrastructure Based on Precipitation Regimes and Land Uses in Mosquito Creek Watershed

This case study investigated the frequencies of the 24h precipitation over 40mm events from 2001 to 2020 and presented spatial analyses of land use and imperviousness in 2011 in Mosquito Creek watershed, North Vancouver, based on accessible data. The Water Balance Model (WBM) was then applied to model the surface runoff discharge rates and direct runoff depths for 2011 surface conditions and 2041 projections without LID practices, as well as performances of selected LID practices (absorbent landscapes, rain gardens, and pervious paving). The modeling results are intended to compare the changes in runoff discharge rates and depths caused by altered surface conditions and the adoption of urban storm runoff mitigation practices.