Robert Darner
Groundwater Specialist, Ohio-Kentucky-Indiana Water Science Center
Science and Products
Filter Total Items: 20
Nowcasting Beach Advisories at Ohio Lake Erie Beaches Nowcasting Beach Advisories at Ohio Lake Erie Beaches
Data were collected during the recreational season of 2007 to test and refine predictive models at three Lake Erie beaches. In addition to 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...
Authors
Donna S. Francy, Robert A. Darner
Section 5. Procedures for Developing Models To Predict Exceedances of Recreational Water-Quality Standards at Coastal Beaches Section 5. Procedures for Developing Models To Predict Exceedances of Recreational Water-Quality Standards at Coastal Beaches
No abstract available.
Authors
Donna S. Francy, Robert A. Darner
Models for predicting recreational water quality at Lake Erie beaches Models for predicting recreational water quality at Lake Erie beaches
Data collected from four Lake Erie beaches during the recreational seasons of 2004-05 and from one Lake Erie beach during 2000-2005 were used to develop predictive models for recreational water quality by means of multiple linear regression. The best model for each beach was based on a unique combination of environmental and water-quality explanatory variables including turbidity...
Authors
Donna S. Francy, Robert A. Darner, Erin E. Bertke
Chemical and biological characterization of the headwaters of the Rush Creek watershed, Perry County, Ohio Chemical and biological characterization of the headwaters of the Rush Creek watershed, Perry County, Ohio
No abstract available.
Authors
Robert A. Darner, John S. Tertuliani, Ralph J. Haefner
Escherichia coli at Ohio bathing beaches—Distribution, sources, wastewater indicators, and predictive modeling Escherichia coli at Ohio bathing beaches—Distribution, sources, wastewater indicators, and predictive modeling
Results of studies during the recreational seasons of 2000 and 2001 strengthen the science that supports monitoring of our Nation's beaches. Water and sediment samples were collected and analyzed for concentrations of Escherichia coli (E. coli). Ancillary water-quality and environmental data were collected or compiled to determine their relation to E. coli concentrations. Data were...
Authors
Donna S. Francy, Amie M. Gifford, Robert A. Darner
Forecasting bacteria levels at bathing beaches in Ohio Forecasting bacteria levels at bathing beaches in Ohio
The U.S. Geological Survey developed models for predicting exceedance of the bathing-water standard for Escherichia coli (E. coli) at three Lake Erie beaches and one inland lake in Ohio. The statistical models were specific to each beach, and the best model for each beach was based on a unique combination of environmental and water-quality variables as explanatory factors. For the Lake...
Authors
Donna S. Francy, Robert A. Darner
Science and Products
Filter Total Items: 20
Nowcasting Beach Advisories at Ohio Lake Erie Beaches Nowcasting Beach Advisories at Ohio Lake Erie Beaches
Data were collected during the recreational season of 2007 to test and refine predictive models at three Lake Erie beaches. In addition to 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...
Authors
Donna S. Francy, Robert A. Darner
Section 5. Procedures for Developing Models To Predict Exceedances of Recreational Water-Quality Standards at Coastal Beaches Section 5. Procedures for Developing Models To Predict Exceedances of Recreational Water-Quality Standards at Coastal Beaches
No abstract available.
Authors
Donna S. Francy, Robert A. Darner
Models for predicting recreational water quality at Lake Erie beaches Models for predicting recreational water quality at Lake Erie beaches
Data collected from four Lake Erie beaches during the recreational seasons of 2004-05 and from one Lake Erie beach during 2000-2005 were used to develop predictive models for recreational water quality by means of multiple linear regression. The best model for each beach was based on a unique combination of environmental and water-quality explanatory variables including turbidity...
Authors
Donna S. Francy, Robert A. Darner, Erin E. Bertke
Chemical and biological characterization of the headwaters of the Rush Creek watershed, Perry County, Ohio Chemical and biological characterization of the headwaters of the Rush Creek watershed, Perry County, Ohio
No abstract available.
Authors
Robert A. Darner, John S. Tertuliani, Ralph J. Haefner
Escherichia coli at Ohio bathing beaches—Distribution, sources, wastewater indicators, and predictive modeling Escherichia coli at Ohio bathing beaches—Distribution, sources, wastewater indicators, and predictive modeling
Results of studies during the recreational seasons of 2000 and 2001 strengthen the science that supports monitoring of our Nation's beaches. Water and sediment samples were collected and analyzed for concentrations of Escherichia coli (E. coli). Ancillary water-quality and environmental data were collected or compiled to determine their relation to E. coli concentrations. Data were...
Authors
Donna S. Francy, Amie M. Gifford, Robert A. Darner
Forecasting bacteria levels at bathing beaches in Ohio Forecasting bacteria levels at bathing beaches in Ohio
The U.S. Geological Survey developed models for predicting exceedance of the bathing-water standard for Escherichia coli (E. coli) at three Lake Erie beaches and one inland lake in Ohio. The statistical models were specific to each beach, and the best model for each beach was based on a unique combination of environmental and water-quality variables as explanatory factors. For the Lake...
Authors
Donna S. Francy, Robert A. Darner