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Nowcasting Beach Advisories at Ohio Lake Erie Beaches

This project began in the year 2    -- it was first presented to the  public as a pilot project at Huntington Beach in Bay Village Ohio in  2  6, where it is still being used. In addition to Escherichia coli  (E. coli) concentrations, field personnel collected or compiled data  for environmental and water-quality variables expected to affect E.  coli concentrations including turbidity, wave height, water  temperature, lake level, rainfall, and antecedent dry days and wet days.     At Huntington (Bay Village) and Edgewater (Cleveland) during 2  7, the  models gave correct responses 82.7 and 82.1 percent of the time; these  percentages were greater than percentages obtained by use of the  previous day's E. coli concentrations (current method). In contrast,  at Villa Angela during 2  7, the model gave correct responses only  61.3 percent of the days monitored; this percentage was lower than  that achieved by use of the current method (74.6 percent). To refine  the Huntington and Edgewater models, data from 2  7 were added to  existing datasets, and the larger datasets were split into two or  three segments by date. Models were developed for dated segments and  for combined datasets. At Huntington, the summed responses for  separate best models for dated segments resulted in a greater  percentage of correct responses (85.6 percent) than the one combined  best model (83.1 percent). Similar results were found for Edgewater.  Water-resource managers will determine how to apply these models to  the Internet-based "nowcast" system for issuing water-quality  advisories during 2  8.    (E. coli); (Escherichia coli); (beach closings); (beach closing);  (beach closures); (beach closure); (turbidity); (wave height); (water  temperature); (lake level); (rainfall); (dry days); (wet days); (Lake  Erie); (Ohio)

In progress
Start Date
End Date
Daniel SchneiderPrincipal Investigator
Associated with 3 projects
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Land Use and Habitat
Lake Basin Connecting Channels
Lake Erie
State Province
Resource Being Monitored
Human Health
Plankton / Microorganisms
Program Drivers
Great Lakes Protection Fund
Beneficial Use Impairment Assessments
Beach Closings
Annex Numbers
Remedial Action Plans and Lakewide Management Plans

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