FAQ

Default solution folder, feel free to edit or delete it.

In a series of estimated flow statistics for an ungaged site, such as peak-flows at various recurrence intervals or flow-duration statistics, why do I sometimes get estimates for lower flows that are higher than estimates for higher flows?
The regression equations that are used to estimate flow statistics for ungaged sites were developed using computed streamflow statistics and measured basin ...
Tue, 22 Mar, 2016 at 4:34 PM
What is the smallest drainage area that StreamStats can delineate accurately, and can I rely on flow estimates for small areas?
The accuracy of drainage-area delineations for small areas depends on accuracy and scale of the elevation data used in StreamStats for the delineations. The...
Wed, 4 Oct, 2017 at 11:42 AM
If I use StreamStats at an existing gage location, will I get the same results as if I computed statistics using the gage records?
It depends. If you use the Query Streamgage tool to get the statistics, then the statistics should be the same as what you computed if the same period of re...
Tue, 22 Mar, 2016 at 5:24 PM
What happened to the version 2 that allowed estimating flows based on the flows at an nearby streamgage and the other tools that allowed stream network navigation?
StreamStats version 2 had to be shut down on July 15, 2015 because the servers on which it ran used an obsolete operating system that was considered a secur...
Tue, 22 Mar, 2016 at 5:27 PM
StreamStats is not available where I need information. Are there any alternatives?
Here are some alternatives to StreamStats, in case we have not yet implemented your area of interest: If you want to get only a basin delineation, t...
Tue, 22 Mar, 2016 at 5:35 PM
What can I do to help get StreamStats operational for my State?
The State Applications page provides a map and an explanation indicating which states have been implemented in StreamStats and where implementation work i...
Tue, 22 Mar, 2016 at 5:37 PM
How should StreamStats be cited
If you want to cite the program in general, use: U.S. Geological Survey, 2016, The StreamStats program, online at http://streamstats.usgs.gov, accesse...
Tue, 22 Mar, 2016 at 5:39 PM
Why are the displayed delineations different than the delineation I've downloaded?
The StreamStats application uses the flow direction raster (a product of the hydro-conditioned DEM) to delineate a basin. Depending on the size of the basin...
Wed, 12 Jun, 2019 at 2:51 PM