Software
Water
Explore software used for all water resources applications, including general use, water quality and chemistry, groundwater, statistics and graphics, and surface water.
MODFLOW
MODFLOW is the USGS's modular hydrologic model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions.
Streamer Trace API
The Streamer Trace API is a programming interface written in JavaScript designed to add up- and downstream traces to an ESRI ArcGIS API for JavaScript (ESRI JSAPI) web map using the same methods and services created for the Streamer application.
Graphing Water Information System (GWIS)
GWIS (Graphing Water Information System) Javascript library can create time-series plots of information measured at USGS hydrologic data collection sites across the US. Developed by the USGS Texas Water Science Center, the user-friendly interface integrates the open-source...
VS2DRTI Version 1.4
VS2DRTI is a graphical software package for simulating water flow, heat transport, and reactive solute transport in variably saturated porous media.
Github - U.S. Geological Survey
Various projects on the USGS's public GitHub.
Water Resources Applications Software
The software and related documentation on these Web pages were developed by the U.S. Geological Survey (USGS) for use by the USGS in fulfilling its mission. The software can be used, copied, modified, and distributed without any fee or cost.
HEC-RAS
The purpose of this website is to enhance the support services provided to HEC-RAS customers. The HEC-RAS website provides a number of resources, which include helping the user download software, learn how to use HEC-RAS, resolve problems, report bugs, and suggest improvements to CEIWR-HEC products and service.
Montana StreamStats: a water-resources web application
StreamStats is a Web application that incorporates a Geographic Information System (GIS) to provide users with access to an assortment of analytical tools that are useful for a variety of water-resources planning and management purposes, and for engineering and design purposes.
SPARROW modeling: Estimating contaminant transport
What’s New: A new version of the SPARROW code is being developed in the R programming language. The advantage of R is that it is non-proprietary and does not require a license or software cost. The R – SPARROW code is now being completed and should be available early in CY18. Stay Tuned.
Chemical Mixtures Software
The chemical mixtures software is a collection of computer programs for investigating the composition, occurrence, distribution, and potential toxicity of chemical mixtures. The software is designed to assist with selecting specific mixtures for future research, identifying the causes for the occurrence of specific mixtures, and discovering the effects of mixtures.
Stochastic Empirical Loading and Dilution Model (SELDM)
SELDM is a database application where users can easily create and run highway-runoff simulations. SELDM simulates storm flows, concentrations, and loads. SELDM calculates the risk of exceeding water-quality criteria with and without user-defined BMPs. SELDM calculates annual runoff loads and is able to do a simple annual lake-loading analysis.
CE-QUAL-W2 - Hydrodynamic and Water Quality Model
CE-QUAL-W2 is a water quality and hydrodynamic model in 2D (longitudinal-vertical) for rivers, estuaries, lakes, reservoirs and river basin systems. W2 models basic eutrophication processes such as temperature-nutrient-algae-dissolved oxygen-organic matter and sediment relationships.