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Water Resources Surface Water Software

This software and related material (data and documentation) are made available by the U.S. Geological Survey (USGS) to be used in the public interest and the advancement of science. You may, without any fee or cost, use, copy, modify, or distribute this software, and any derivative works thereof, and its supporting documentation, subject to the USGS software User's Rights Notice.

You may obtain other electronic or print versions of USGS reports and documentation that are not included with the software distributions.

Surface Water list

• ANNIE (DOS/Sun) Version 4.1, 2002/02/25
  Interactive Hydrologic Analyses and Data Management
• BRANCH (DOS/DG/Sun) Version 4.3, 1997/06/05
  Branch-Network Dynamic Flow Model
• BSDMS (DOS/DG) Version 2.1, 1996/03/01
  Bridge Scour Data Management System
• CAP (Win/Mac/DOS/Sun) Version 2.0 and 1.1, 2017/05/19
  Culvert Analysis Program
• CGAP (DOS/DG/Sun) Version 3.5, 1995/10/06
  Channel Geometry Analysis Program
• CRT (DOS) Version 1.3.1, 2017/03/30
  Cascade Routing Tool to Define and Visualize Flow Paths for Grid-Based Watershed Models
• DR3M (DOS/DG) Version 2.1, 1996/03/01
  Distributed Routing Rainfall-Runoff Model
• feq (DOS/Sun) Version 4.1
  Interactive Hydrologic Analyses and Data Management
• FEQ (DOS) Version 10.60, 2009/03/31
  Full EQuations Model
• FESWMS-2DH (DG) Version 1.10.DG1, 1995/06/07
  Finite-element surface-water modeling system for two-dimensional flow in the horizontal plane
• FourPt (DG/Sun) Version 95.01, 1997/06/04
  An unsteady, one-dimensional, open-channel flow model
• GCLAS (Unix/Win) Version 2.20, 2018/12/03
  Graphical Constituent Loading Analysis System
• GenScn (Win) Version 1.0, 1998/08/14
  GENeration and analysis of model simulation SCeNarios
• GLSNet (DOS/DG) Version 4.0, 2005/01/27
  Regional hydrologic regression and NETwork analysis using Generalized Least Squares
• GNWISQ (Windows) Version 1.1, 2014/09/15
  Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Get National Water Information System Streamflow (Q) files
• Groundwater_Toolbox (WIN) Version 1.3.1, 2017/05/26
  A graphical and mapping interface for analysis of hydrologic data. Includes the hydrograph-analysis programs BFI, HYSEP, PART, and RORA (with RECESS).
• GSFLOW (Linux/Win) Version 1.2.1, 2016/10/01
  Coupled Groundwater and Surface-water FLOW model based on the USGS Precipitation-Runoff Modeling System (PRMS) and Modular Groundwater Flow Model (MODFLOW-2005)
• HSPexp (DOS/DG) Version 2.4, 2002/06/26
  Expert System for Calibration of HSPF
• HSPF (DOS/DG) Version 11.0, 1996/03/01
  Hydrological Simulation Program--Fortran
• HydroClimATe (WIN) Version 1.0.0, 2014/03/07
  Computer program for assessing the relations among variable climatic and hydrologic time-series data
• HyDroDSS (Windows) Version 1.0.0.0, 2014/03/27
  Hydrologic Drought Decision Support System
• INFIL3.0 (Win) Version 1.0, 2008/06/19
  A grid-based, distributed-parameter watershed model to estimate net infiltration below the root zone
• IOWDM (DOS/Sun) Version 4.1, 2002/02/25
  Input and Output for a Watershed Data Management (WDM) file
• KTRLine (Win) Version 1.0, 2010/01/11
  Kendall-Theil Robust Line
• LOADEST (Linux/Unix/Win)
  Homepage for LOADEST software distributed by the U.S. Geological Survey
• MEASERR (DOS/DG/Sun) Version 2.5, 1994/04/19
  A Program for Determination of Error in Individual Discharge Measurements
• MkDF (Windows) Version 1.0, 2009/12/15
  Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Make U.S. Environmental Protection Agency DFLOW3 batch-input files
• MkPP (Windows) Version 1.0, 2009/12/15
  Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Make Plotting Position
• MODEIN (DOS/DG/Sun) Version 1.4, 1998/01/16
  Computation of total sediment discharge by the modified Einstein procedure
• NCALC (DOS/DG/Sun) Version 2.6, 1995/03/30
  Manning's n value calculation program
• NFF (Win) Version 3.2, 2003/04/30
  National Flood Frequency program
• NSS (Win) Version 6.1, 2017/01/10
  National Streamflow Statistics program
• OTEQ (Linux/Unix)
  Homepage for OTEQ software distributed by the U.S. Geological Survey
• OTIS (Linux/Sun/Unix/Win), 1998/04/20
  One-dimensional transport with inflow and storage (OTIS): A solute transport model for streams and rivers
• PeakFQ (Win) Version 7.2, 2018/03/29
  Flood-frequency analysis based on Bulletin 17C
• PRMS (Win/Linux) Version 4.0.1, 2015/03/15
  Precipitation-Runoff Modeling System (PRMS)
• QSTATS (Windows) Version 1.1, 2014/09/15
  Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Streamflow (Q) Statistics
• RRAWFLOW (Win/Unix/Mac) Version 1.16, 2015/04/20
  An R Package providing a lumped-parameter model that simulates streamflow, springflow, groundwater level, solute transport, or cave drip for a measurement point in response to a system input of precipitation, recharge, or solute injection
• SAC (Win/Mac/DOS/Sun) Version 2.0 and 1.0.03, 2012/10/05
  Slope-Area Computations
• seawaveQ (Win/Unix/Mac) Version 1.0, 2013/12/30
  An R Package Providing a Model and Utilities for Analyzing Trends in Chemical Concentrations in Streams with a Seasonal Wave (seawave) and Adjustment for Streamflow (Q) and Other Ancillary Variables
• SEDSIZE (DOS/DG/Sun) Version 1.9, 1997/06/02
  Particle-size statistics of fluvial sediments
• SPARROW (Win/Sun) Version 2.6, 2006/08/09
  SPAtially Referenced Regressions On Watershed attributes
• SREF (Windows) Version 1.0, 2009/12/15
  Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Streamflow Record Extension Facilitator
• StreamStats (online) Version 2, 2011/01/07
  StreamStats streamflow statistics web application
• SWSTAT (DOS/Sun) Version 4.1, 2002/02/25
  Surface-Water Statistics
• waterData (Win/Unix/Mac) Version 1.0, 2012/10/12
  An R Package for Retrieval, Analysis, and Anomaly Calculation of Daily Hydrologic Time Series Data
• WEBMOD (Win/Linux) Version 1.0, 2018/03/14
  The Water, Energy, and Biogeochemical Model (WEBMOD) simulate fluxes of water and solutes through natural and managed watersheds
• WREG (Win) Version 1.05, 2013/05/08
  Weighted-multiple-linear REGression
• WSPRO (DOS/DG/Sun) Version V060188, 1996/01/17
  A Computer Model for Water-Surface PROfile Computations

Legacy and Superseded software, and software that is not actively supported by the USGS

• E431 (DG/Sun) Version 83.180, 1995/11/22
  Step-Backwater and Floodway Analyses (superseded by WSPRO)
• HYSEP (DOS/DG/Sun) Version 2.2, 1997/06/10
  Hydrograph Separation Program

Abbreviations for OSs

Computer systems for which software distribution packages have been compiled are shown in parentheses following the software name; abbreviations used are defined as follows:

• DOS - IBM-compatible PC, 386 or higher with math coprocessor
• DG - Data General AViiON DG/UX
• Linux - Red Hat 6.1 for i386
• Mac - Macintosh
• SGI - Silicon Graphics Indigo
• Sun - Sun SPARCstation Solaris
• Win - Microsoft Windows
• online - the application runs directly from its webpage.

New or Recently Updated Software

Software which has a recent release date will be annotated with one of three icons, in descending level of visual imperative.

– released in last 28 days
– released in last 56 days
– released in last 112 days

A separate web page is available listing recently updated software.