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Hydrologic Impact Assessment of Land Cover Change and Stormwater Management Using the Hydrologic Footprint Residence
Author(s) -
Giacomoni M.H.,
Gomez R.,
Berglund E.Z.
Publication year - 2014
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/jawr.12187
Subject(s) - environmental science , low impact development , surface runoff , hydrology (agriculture) , stormwater , land cover , storm , urbanization , land use , hydrograph , residence time (fluid dynamics) , baseflow , streamflow , stormwater management , drainage basin , meteorology , geography , geology , ecology , civil engineering , geotechnical engineering , economic growth , engineering , economics , biology , cartography
Urbanization impacts the stormwater regime through increased runoff volumes and velocities. Detention ponds and low impact development ( LID ) strategies may be implemented to control stormwater runoff. Typically, mitigation strategies are designed to maintain postdevelopment peak flows at predevelopment levels for a set of design storms. Peak flow does not capture the extent of changes to the hydrologic flow regime, and the hydrologic footprint residence ( HFR ) was developed to calculate the area and duration of inundated land during a storm. This study couples a cellular automata land cover change model with a hydrologic and hydraulic framework to generate spatial projections of future development on the fringe of a rapidly urbanizing metropolitan area. The hydrologic flow regime is characterized for existing and projected land cover patterns under detention pond and LID ‐based control, using the HFR and peak flow values. Results demonstrate that for less intense and frequent rainfall events, LID solutions are better with respect to HFR ; for larger storms, detention pond strategies perform better with respect to HFR and peak flow.