Explore software used for all water resources applications, including general use, water quality and chemistry, groundwater, statistics and graphics, and surface water.

Filter Total Items: 123
Date published: January 15, 2020


An Excel® Workbook for Interpreting Groundwater Age Distributions from Environmental Tracer Data

Date published: December 19, 2019


DOTABLES is an online program that generates tables of dissolved oxygen solubility values and (or) salinity correction factors over a range of user-specified values for water temperature, barometric pressure, and salinity or specific conductance.

Attribution: Water Resources
Date published: December 4, 2019

Floodplain and Channel Evaluation Tool (FACET)

The Floodplain and Evaluation Tool (FACET) is an open-source python tool that maps the floodplain extent and derives reach-scale summaries of stream and floodplain geomorphic measurements from high-resolution digital elevation models (DEMs).

Date published: November 21, 2019


DTSGUI is a  USGS software tool to import, manage, parse/cull, georeference, analyze and visualize fiber-optic distributed temperature sensor data.

Attribution: Water Resources
Date published: October 3, 2019


RSPARROW, now available on the USGS GitLab repository, provides the first open-source version of the USGS SPARROW water-quality model

Date published: August 21, 2019

GCLAS (Graphical Constituent Loading Analysis System): A tool for computing loads of constituents transported in rivers

GCLAS is a program designed to compute daily and annual loadings of constituents transported in rivers. 

Date published: July 10, 2019

Stream Channel and Floodplain Metric Toolbox

The Stream Channel and Floodplain Metric Toolbox was developed to demonstrate the feasibility of mapping fluvial geomorphic features from high-resolution bare-earth elevation data.

Date published: June 28, 2019

MT3D-USGS: Groundwater Solute Transport Simulator for MODFLOW

MT3D-USGS is a USGS updated release of the groundwater solute transport code MT3DMS. MT3D-USGS includes new transport modeling capabilities to accommodate flow terms calculated by MODFLOW packages that were previously unsupported by MT3DMS and to provide greater flexibility in the simulation of solute transport and reactive solute transport.

Date published: April 26, 2019

Basin Characterization Model (BCM)

The Basin Characterization Model (BCM) models the interactions of climate with empirically measured landscape attributes including topography, soils, and underlying geology. It is a grid-based model that calculates the water balance for each 18-acre cell (270m resolution) in a given watershed in set time steps for the entire area. 

Date published: April 4, 2019

Point-Source Load Estimation Tool (PSLoadEsT)

Software for generating reproducible load calculations for point source dischargers.  Includes features to manage common data challenges such as duplicates, incompatible input tables, and missing nutrient concentration or effluent flow data.

Attribution: Water Resources
Date published: March 4, 2019

MODFLOW-2005: USGS Three-Dimensional Finite-Difference Ground-Water Model

MODFLOW 6 is presently the core MODFLOW version distributed by the USGS, but MODFLOW-2005 (the previous core version) is still actively maintained and supported. MODFLOW-2005 simulates steady and nonsteady flow in an irregularly shaped flow system in which aquifer layers can be confined,...

Attribution: Water Resources
Date published: March 4, 2019

SPARROW Modeling Program

SPARROW is a popular watershed modeling technique, distributed by the USGS, that estimates the amount of a contaminant transported from inland watersheds to larger water bodies by linking monitoring data with information on watershed characteristics and contaminant sources.

Attribution: Water Resources