Hydro-Climate Symposium

Oral

398061 - Current and Future Urban Stormwater Flooding Scenarios in the Southeast Florida Coasts under Extreme Events

Tuesday, June 5
10:30 AM - 12:00 PM
Location: Lake Superior B
Co-Authors: Omar Abdul-Aziz, Morgantown, WV – West Virginia University

We assessed the flooding scenarios under historical and future extreme rainfall for the Southeast Coasts Basin of Florida. A large-scale process-based rainfall-runoff model was developed using the Storm Water Management Model (SWMM 5.1) of US EPA. Important processes of urban hydrology, groundwater, and sea level were parameterized in the model, while including hydroclimatological variables and land use/cover features. The model was calibrated and validated with historical streamflow of 2004-2011 at six different locations. We then computed extreme rainfall of different durations and return periods for historical (2010s = 2004-2011) as well as future periods (2050s = 2030-2059; 2080s = 2070-2099) based on downscaled climatic projections of 20 GCMs-RCMs from the coupled model intercomparison project (CMIP5). The calibrated and validated model was used to determine sensitivity of stormwater flooding to reference changes in extreme rainfall and land use/land cover features (imperviousness and roughness). We also estimated historical and potential future extreme rainfall flooding in the basin incorporating the projections of climate, seal level and land use/cover in our model. Comparative synthesis of the historical and future extreme rainfall flooding scenarios along with the sensitivity analyses outcomes can help in efficient management of stormwater flooding and design of stormwater infrastructures for the Southeast Florida Coasts and similar growing urban centers around the world.

Erfanul Huq

PhD Student
West Virginia University

My name is Erfanul Huq. I am currently pursuing PhD in Civil Engineering at West Virginia University (WVU), and also working as a graduate research assistant in the department of Civil and Environmental Engineering. I earned my bachelor’s degree in Civil Engineering from Bangladesh University of Engineering and Technology (BUET), and later did my master’s in Environmental Engineering from Washington State University (WSU). I have acquired 29 months of working experience in the field of process based modeling of groundwater flow and solute transport. My area of interest are flow and contaminant transport in subsurface, and hydrology and mechanistic hydrological modeling, through which I am inclined towards addressing aspects like surface and groundwater interaction, climate change impacts on surface and groundwater flows, flooding in complex urban watershed, application of Geographic Information System (GIS) in hydrological problems, etc. During my current tenure at WVU, my research is based on quantifying stormwater induced flooding of inlands of Florida during extreme storm events.

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