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Water Software > Groundwater Software > RECESS

RECESS: A computer program for analysis of streamflow recession

The RECESS program is used to determine the recession index and to define the master recession curve from analysis of streamflow records.

This web site includes information about the use of the RECESS computer program for analyzing a streamflow record. The version at this site will read streamflow data in the format that is available from USGS web sites. This version is provided with a graphics application for viewing recession segments.

RECESS Downloads

  • Notice to users: USGS has received reports that recess.exe is being flagged as malware by some antivirus programs. To the best of our knowledge, this is a false-positive report for the original recess.exe file served from this web site. Please note that the USGS has no control over RECESS software distributed from non-USGS web sites; the only official USGS version of RECESS is the file served from this web site. If you have additional questions, please contact us at ogw_webmaster@usgs.gov.
  • Download RECESS version 2.0 software, documentation, and sample data sets, updated March 2012 (1.5MB EXE)
  • README file describing files included in EXE file

Background Literature

RECESS is described in the following documents:

Useful Resources

The following resources may also be of use:

Related Software: Groundwater Toolbox

RECESS users may also be interested in the Groundwater Toolbox, a graphical and mapping interface for analysis of hydrologic data. The Groundwater Toolbox has several methods for the analysis of streamflow data. These methods include six hydrograph-separation techniques — the Base-Flow Index (BFI Standard and Modified), HYSEP (Fixed Interval, Sliding Interval, and Local Minimum), and PART methods — and the RORA recession-curve displacement method and associated RECESS program to estimate groundwater recharge from streamflow data.

Point of Contact

Support is provided for correcting bugs and clarification of how RECESS is intended to work. Only limited assistance can be provided for applying RECESS to specific problems. Comments and questions can be sent to Paul Barlow.

Other USGS Groundwater Software

The USGS develops groundwater RSS, water-quality, surface-water, and other water-resources software for use by the USGS in fulfilling its mission. Most of this software is available online for download at no charge.

Disclaimers and Notices

Please refer to the USGS Water Resources Software User Rights Notice for complete use, copyright, and distribution information. This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjected to rigorous review, the USGS reserves the right to update the software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.

See also, USGS policy on linking to non-Federal web sites.


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URL: http://water.usgs.gov/ogw/recess/index.html
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Page Last Modified: Friday, 21-Aug-2015 15:30:49 EDT