StreamStats for Ohio was developed in cooperation with the Ohio Department of Transportation, the U.S. Department of Transportation, the Federal Highway Administration, the Federal Emergency Management Agency, the Ohio Environmental Protection Agency, the Ohio Water Development Authority, and the Ohio Department of Natural Resources.
The reports below document the regression equations available in StreamStats for Ohio, the methods used to develop the equations and to measure the basin characteristics used in the equations, references to GIS data layers used in the analysis, and the errors associated with the estimates obtained from the equations. Users should familiarize themselves with this report before using StreamStats to obtain estimates of streamflow statistics for ungaged sites.
- Koltun, G.F., 2019, Flood-frequency estimates for Ohio streamgages based on data through water year 2015 and techniques for estimating flood-frequency characteristics of rural, unregulated Ohio streams: U.S. Geological Survey Scientific Investigations Report 2019–5018, 25 p., https://doi.org/10.3133/sir20195018.
- Koltun, G.F., Kula, S.P., and Puskas, B.M., 2006, A Streamflow Statistics (StreamStats) Web Application for Ohio: U.S. Geological Survey Scientific Investigations Report 2006-5312, 62 p.
- Koltun, G.F., 2003, Techniques for estimating flood-peak discharges of rural, unregulated streams in Ohio: U.S. Geological Survey Scientific Investigations Report 03-4164, 75 p.
- Koltun, G.F., and Whitehead, M.T., 2002, Techniques for estimating selected streamflow characteristics of rural, unregulated streams in Ohio: U.S. Geological Survey Scientific Investigations Report 02-4068, 50 p.
- Koltun, G.F., and Kula, S.P., 2013, Methods for estimating selected low-flow statistics and development of annual flow-duration statistics for Ohio: U.S. Geological Survey Scientific Investigations Report 2012–5138, 195 p.
Click on this link to obtain general information on the Ohio application, as well as specific sources and computation methods for basin characteristics.
Water-use information available from Streamstats is limited to an area of northeastern Ohio that is approximately bounded by Erie County in the northwest to Belmont County in the southeast. Koltun and others (2016) present a map of the area of availability.
StreamStats outputs report the uncertainty of the estimates for ungaged basins when basin characteristics for selected sites are within the ranges of the basin characteristics for streamgages that were used to develop the regression equations. Errors for basins with basin characteristics that are beyond these bounds are unknown. The applicable ranges of the basin characteristics are provided in the outputs and messages are provided when basin characteristics are outside of the applicable ranges.
Related Content
Flood-frequency estimates for Ohio streamgages based on data through water year 2015 and techniques for estimating flood-frequency characteristics of rural, unregulated Ohio streams
Methods for estimating selected low-flow statistics and development of annual flow-duration statistics for Ohio
A Streamflow Statistics (StreamStats) Web Application for Ohio
Techniques for estimating flood-peak discharges of rural, unregulated streams in Ohio
Techniques for estimating selected streamflow characteristics of rural, unregulated streams in Ohio
Related Content
- Publications
Flood-frequency estimates for Ohio streamgages based on data through water year 2015 and techniques for estimating flood-frequency characteristics of rural, unregulated Ohio streams
Estimates of the magnitudes of annual peak streamflows with annual exceedance probabilities of 0.5, 0.2, 0.1, 0.04, 0.02, 0.01, and 0.002 (equivalent to recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years, respectively) were computed for 391 streamgages in Ohio and adjacent states based on data collected through the 2015 water year. The flood-frequency estimates were computed followAuthorsG.F. KoltunMethods for estimating selected low-flow statistics and development of annual flow-duration statistics for Ohio
This report presents the results of a study to develop methods for estimating selected low-flow statistics and for determining annual flow-duration statistics for Ohio streams. Regression techniques were used to develop equations for estimating 10-year recurrence-interval (10-percent annual-nonexceedance probability) low-flow yields, in cubic feet per second per square mile, with averaging periodsAuthorsG. F. Koltun, Stephanie P. KulaA Streamflow Statistics (StreamStats) Web Application for Ohio
A StreamStats Web application was developed for Ohio that implements equations for estimating a variety of streamflow statistics including the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year peak streamflows, mean annual streamflow, mean monthly streamflows, harmonic mean streamflow, and 25th-, 50th-, and 75th-percentile streamflows. StreamStats is a Web-based geographic information system application dAuthorsG. F. Koltun, Stephanie P. Kula, Barry M. PuskasTechniques for estimating flood-peak discharges of rural, unregulated streams in Ohio
Regional equations for estimating 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood-peak discharges at ungaged sites on rural, unregulated streams in Ohio were developed by means of ordinary and generalized least-squares (GLS) regression techniques. One-variable, simple equations and three-variable, full-model equations were developed on the basis of selected basin characteristics and flood-frequencAuthorsG. F. KoltunByTechniques for estimating selected streamflow characteristics of rural, unregulated streams in Ohio
This report provides equations for estimating mean annual streamflow, mean monthly streamflows, harmonic mean streamflow, and streamflow quartiles (the 25th-, 50th-, and 75th-percentile streamflows) as a function of selected basin characteristics for rural, unregulated streams in Ohio. The equations were developed from streamflow statistics and basin-characteristics data for as many as 219 activeAuthorsG. F. Koltun, Matthew T. Whitehead - Partners