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| Publications—Open-File Report 2006-1159 |

>  Velocity, Bathymetry, and Transverse Mixing Characteristics of the Ohio River Upstream from Cincinnati, Ohio, October 2004—March 2006By***G. F. Koltun, Chad J. Ostheimer, and Michael S. Griffin***In cooperation with the Greater Cincinnati Waterworks, Northern Kentucky Water District, and the Awwa Research FoundationContentsAbstractIntroductionDescription of the Study AreaPurpose and ScopeVelocityAcoustic Doppler Current Profiler (ADCP) MeasurementsPostprocessing of ADCP DataBathymetryTransverse Mixing CharacteristicsInjection and Measurement of DyeManual Reference SamplesTesting for Vertically Well Mixed ConditionsDye-Tracer StudiesDownstream StudyUpstream StudyManual Dye Sample ResultsHydrology and Streamflow Measurements During the Dye StudiesRetrieval of DataSummaryAcknowledgmentsReferences CitedAppendixes1.	Appendix 1 - Description of data fields in the acoustic Doppler current profiler files.2.	Appendix 2 - Description of data fields in the fluorometric data file (fluor_data.csv).3.	Appendix 3 - Description of data fields in the cross-section profile file (xsec_profile.csv).4.	Appendix 4 - Description of data fields in the manual sample file (manual_sample.csv)FIGURES 1.		Location of study reach and blocks linking to detailed maps showing ADCP transects.2.		Variation of velocity magnitude between the top (Top Q) and bottom (Bottom Q) of the measured zone along an Ohio River transect.3.		Photograph of dye distribution container and injection pumps.4.		Crane-suspended screened intake and tubing leading to the fluorometer.5.		Schematic representation of method used to project ship-track coordinates onto an ideal cross section.6.		Location of transects related to the dye-tracer studies.7-15.		Cross-section profiles of relative dye concentration and depth on 08/02/2005 in the Ohio River at:7.		Cross section OH 68.		Cross section OH 89.		Cross section OH 1010.		Cross section OH 1111.		Cross section OH 1212.		Cross section OH 1313.		Cross section OH 1414.		Cross section OH 1515.		Cross section OH 1616.		Photograph of the Ohio River near California, Ohio, taken 08/02/05 at approximately 15:00 EDT.17.		Maximum measured dye concentration as a function of distance from injection point for 08/02/2006 (downstream) tracer study on the Ohio River.18-19.		Cross-section profiles of relative dye concentration and depth on 08/03/2005 in the Ohio River at:18.		Cross section OH 1519.		Cross section OH 1620-28.		Cross-section profiles of relative dye concentration and depth on 08/04/2005 in the Ohio River at:20.		Cross section OH 121.		Cross section OH 222.		Cross section OH 323.		Cross section OH 424.		Cross section OH 525.		Cross section OH 626.		Cross section OH 727.		Cross section OH 828.		Cross section OH 929.		Maximum measured dye concentration as a function of distance from injection point for 08/04/2006 (upstream) tracer study on the Ohio River.30.		Water-surface elevations at the Captain Anthony Meldahl Dam lower pool and Cincinnati gaging station (03255000) during August 1-4, 2005.TABLES1.		ADCP survey river-mile boundaries and dates of data collection.2.		Streamflows, average velocities, fully mixed concentrations, and coefficients of variation of dye concentrations measured in selected cross sections on the Ohio River upstream from Cincinnati, Ohio.3.		Locations of streamflow-measurement cross sections4.		Summary information for streamflow measurements made on 8/2/05 and 8/4/05.CONVERSION FACTORS AND ABBREVIATIONSMultiplyByTo obtainLengthinch (in.)	 25.4millimeterfoot (ft)	 0.3048metermile (mi)	 1.609kilometerVolumeounce, fluid (fl. oz)	  0.02957liter gallon (gal)	  3.785litercubic inch (in3)	 0.01639liter Areasquare mile (mi2) 	 2.590 square kilometerVelocityfeet per second 	 0.0348 meters per secondFlow ratecubic foot per second (ft3/s)	 0.02832 cubic meter per secondmillion gallons per day (Mgal/d)	 0.04381cubic meter per secondTemperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:°F = (1.8 x °C) + 32Temperature in degrees Fahrenheit (°F) may be converted to degrees  Celsius (°C) as follows:°C = (°F - 32) / 1.8Concentrations of chemical constituents in water are given either in milligrams per liter (mg/L) or micrograms per liter (mg/L).To convert from Coordinated Universal Time (UTC), subtract 4 hours to obtain Eastern Daylight Time (EDT) or subtract 5 hours to obtain Eastern Standard Time (EST).Unless specified otherwise, vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88) and horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83), Ohio State Plane (Ohio South, zone 3402) coordinates. Coordinates are reported in U.S. Survey Feet.

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