Climate, land use and hydrologic sensitivities of stormwater quantity and quality in a complex coastal-urban watershed

Abstract

We determined reference hydro-climatic and land use/cover sensitivities of stormwater runoff and quality in the Miami River Basin of Florida by developing a dynamic rainfall-runoff model with the EPA Storm Water Management Model. Potential storm runoff in the complex coastal-urban basin exhibited high and notably different seasonal sensitivities to rainfall; with stronger responses in the drier early winter and wetter late summer months. Basin runoff and pollutant loads showed moderate sensitivities to the hydrologic and land cover parameters; imperviousness and roughness exhibited more dominant influence than slope. Sensitivity to potential changes in land use patterns was relatively low. The changes in runoff and pollutants under simultaneous hydro-climatic or climate-land use perturbations were notably different than the summations of their individual contributions. The quantified sensitivities can be useful for appropriate management of stormwater quantity and quality in complex urban basins under a changing climate, land use/cover, and hydrology around the world.

Impact of temporal rainfall patterns on flash floods in Hue City, Vietnam

“…The Storm Water Management Model (SWMM) is among the most widely used software for simulating rainfall‐runoff in urban areas (Lee, Hewa, Pezzaniti, & Argue, 2008; Sun, Hall, Hong, & Zhang, 2014; Abdul‐Aziz & Al‐Amin, 2015; Yu, Huang, & Wu, 2014;). SWMM is a physical model, whose runoff module deals with precipitation, runoff, and pollution load of each sub‐basin.…”

Future Scenarios Modeling of Urban Stormwater Management Response to Impacts of Climate Change and Urbanization

“…In addition, there is still lack of consistency in research findings when it comes to future scenarios based on different levels of urban development. Abdul‐Aziz and Al‐Amin investigated the sensitivities of stormwater quantity and quality in a coastal urban watershed (the Miami River Basin of Florida) based on certain climate change scenarios and changing land use, and found that runoff quantity exhibited high sensitivity, which also varied seasonally . Willuweit et al stimulated the effects of climate change and economic and urban planning scenarios on urban runoff patterns in Dublin, Ireland, and found that climate change is likely to reduce runoff, while urbanization is likely to increase it, and that decentralized practices have a critical role in sustainable urban stormwater management .…”

The Use of PCSWMM for Assessing the Impacts of Land Use Changes on Hydrological Responses and Performance of WSUD in Managing the Impacts at Myponga Catchment, South Australia

“…SWMM is a catchment scale model and provides an integrated environment for editing input data for a given study area and results can be viewed in a number of formats [11]. Several studies have utilized SWMM, including Lee [3], Sun, Hall, Hong and Zhang [11], Wella-Hewage [8], Abdul-Aziz and Al-Amin [12] and Yu et al [13], for low flow studies, catchment discretization, Water Sensitive Urban Design (WSUD) methodology development, runoff and pollutant modelling and drainage system analysis, respectively. Though the model has numerous advantages and has a wide range of applications, it does not have any spatial interface.…”