OKLAHOMA PROJECTS

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  • StreamStats – Estimating drainage basin characteristics and streamflow statistics for ungaged streams in Oklahoma
  • Garber-Wellington (Central Oklahoma) Aquifer Study
  • Photographs of the Picher Mining District/Tar Creek Superfund Site (Ottawa County, Oklahoma)
  • Youth Initiative Program
• Completed Projects
  • Selected Metals in Sediments and Streams in the Oklahoma Part of the Tri-State Mining District, 2000-2006
  • Development of a Probabilistic Assessment Methodology for Evaluation of Carbon Dioxide Storage
  • Aquifer Tests and Characterization of Transmissivity, Ada-Vamoosa Aquifer on the Osage Reservation, Osage County, Oklahoma, 2006
  • Monitoring of Nitrate and Pesticides in Water in Chickasaw Nation Lands,
    Southern Oklahoma
  • Geochemical Data from Produced Water Contamination Investigations: Osage-Skiatook Petroleum Environmental Research (OSPER) Sites, Osage County, Oklahoma
  • Geochemistry of the Arbuckle-Simpson Aquifer
• OKWSC Presentations
  • A Very Wet Year In Oklahoma

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StreamStats – Estimating drainage basin characteristics and streamflow statistics for ungaged streams in Oklahoma

By S. Jerrod Smith and Rachel A Esralew

Poster summary

Oklahoma StreamStats Web Application

The U.S. Geological Survey (USGS) periodically publishes streamflow statistics, such as flood-frequency, flow-duration, and mean annual streamflow statistics, for gaged sites with long-term record. Regionalized regression methods recently have been developed for estimating many of these streamflow statistics at ungaged sites as a function of measured physical and climatic drainage basin characteristics.

The USGS Streamflow Statistics (StreamStats) Program was developed, in cooperation with ESRI, to make estimation of basin characteristics and streamflow statistics at ungaged sites easier, faster, and more consistent for the average user than previously employed manual techniques.  Manual measurement of drainage basin characteristics is inconsistent, prone to error, and can take hours or days for large basins. Geographic Information System (GIS) techniques can produce drainage basin characteristics in seconds with greater accuracy and reproducibility.

The StreamStats user-interface is an Internet-based GIS application that allows users to easily obtain streamflow statistics, basin characteristics, and other information for user-selected USGS data-collection stations and ungaged sites of interest. To estimate streamflow statistics at ungaged sites, the StreamStats application relies on the data collected at USGS streamflow gages, on-the-fly measurements of physical and climatic drainage basin characteristics, and published regionalized regression equations. The StreamStats application interface allows the user to:

• delineate drainage basins for ungaged sites,
• download drainage basin outlines to a shapefile,
• compute selected basin characteristics for drainage basins,
• estimate selected streamflow statistics for a point on a stream,
• print map views, and
• retrieve information for USGS data-collection stations.

The Oklahoma StreamStats application covers most areas within the state of Oklahoma. Basin characteristics available for computation include contributing drainage area, contributing drainage area minus area regulated by floodwater retarding structures, mean annual precipitation at the basin outlet, and main-channel 10-85 stream slope. Streamflow statistics now available for computation include the peak flow at 2-, 5-, 10-, 25-, 50-, 100-, and 500-year recurrence intervals for rural, unregulated streams or rural streams that are regulated by NRCS FWR structures. Later this year, in cooperation with the Oklahoma Water Resources Board, Oklahoma StreamStats also will provide estimates of flow-duration and annual mean flow statistics for sites on ungaged streams.

USGS StreamStats Home