Exploring Key Drivers of Seasonal and Annual Water Quality Outcomes in Space and Time across Miami-Dade County, Florida

Authors: Carson Hauck*, Clark University, Matthew Smith, Florida International University, Rinku Roy Chowdhury, Clark University, Henrik Westerkam, Clark University
Topics: Spatial Analysis & Modeling, Water Resources and Hydrology, Land Use
Keywords: Water quality, Florida, Miami-Dade County, space-time trends, land use/cover
Session Type: Poster
Day: 4/4/2019
Start / End Time: 9:55 AM / 11:35 AM
Room: Lincoln 2, Marriott, Exhibition Level
Presentation File: No File Uploaded


In Miami-Dade County, efforts to improve urban water quality and mitigate the downstream effects of poor water quality on marine ecosystems in Biscayne Bay is a rising concern. Past studies in southeast Florida suggest water quality is linked to climate trends as well as urban land use/land cover. This study analyzes spatiotemporal trends in water quality (WQ) data from Miami-Dade County’s Department of Environmental Resources Management (DERM), which includes 400 water quality variables and over 580,000 bimonthly to monthly measurements recorded at 65 water sampling stations over 1979-2016. We integrate these data with climate (e.g. rainfall) data as well as land use/cover, especially vegetated and impervious covers, in order to investigate how land cover, drainage infrastructure, and seasonal and long term climate trends shape water quality outcomes at a range of spatial scales (hydrological units). Insights from this analysis will help with long-term efforts to manage and improve water quality in Miami-Dade County, particularly in Biscayne Bay. This research is a part of the Urban Resilience to Extremes (UREx) Sustainability Research Network (https://sustainability.asu.edu/urbanresilience/), and will help inform research and practitioner objectives linked to climate vulnerability and resilience.

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