Indiana

Attention!

The application for this State is based on StreamStats version 2. Please read the new User Instructions for this application before attempting to use it. The new network navigation and estimating flows based on similar gages, have not yet been implemented in this state. These processes will be added in the near future.

Please help us conserve our server system resources and close the Interactive Map window when you are finished using it. Doing so will help ensure system availability for all users. Thank you.

Also, please bookmark this page, rather than the Interactive Map page, since the URL for the interactive map may change in the future.

We want your feedback! Please send any comments or questions that you have on StreamStats to the StreamStats development team at GS-W StreamStats@usgs.gov.

The report below documents the regression equations available in StreamStats for Indiana, the methods used to develop the equations and to measure the basin characteristics used in the equations, 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.

Rao, A.R., 2005, Flood-Frequency Relationships for Indiana: Joint Transportation Research Program, Purdue University, FHWA/IN/JTRP-2005/18, 14 p.

Interactive Map

Stream slope is used as an explanatory variable in the peak-flow regression equations for all hydrologic regions of Indiana except for region 8. The method used by StreamStats to compute stream slope is somewhat different than the method used to develop the dataset used by Rao (2005) for his regression analyses. The average difference between the StreamStats values of stream slope and the values used by Rao is about 4 percent, but differences for some individual stations exceeded 100 percent. As a result, users should consider that the errors associated with the flow estimates provided by StreamStats are probably somewhat greater than the published standard errors of prediction.

StreamStats for Indiana was developed in cooperation with the Indiana Department of Natural Resources.

Link to the Indiana Department of Natural Resources