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: 30
trees and stream
December 15, 2016

The New York Streamflow Estimation Tool produces a complete estimated daily mean time series from which daily flow statistics can be estimated and a means for quantitative flow assessments at ungaged locations to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters.

September 30, 2016

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.

Graphical output of HYDROTHERM showing permiability of tsunami brecca as a function of distance from an impact crater.
August 30, 2016

The HYDROTHERM computer program simulates multi-phase ground-water flow and associated thermal energy transport in three dimensions. It can handle high fluid pressures, up to 1 x 10^9 Pa (104 atm), and high temperatures, up to 1,200 °C. 

Water Use Site Retrieval Page Icon
July 4, 2016

In 1977, the Congress of the United States recognized the need for uniform, current, and reliable information on water use and directed the U.S. Geological Survey (USGS) to establish a National Water-Use Information Program (NWUIP) to complement the Survey's data on the availability and quality of the Nations water resources.

Screenshot of GAMACTT web application.
June 29, 2016

The USGS Groundwater Age Mixtures and Contaminant Trends Tool can be used to explore the effects of basic aquifer properties and well configurations on groundwater age mixtures in groundwater discharge and on contaminant trends from varying nonpoint-source contaminant input scenarios.

Screenshot of TracerLPM graphs.
June 29, 2016

TracerLPM is an interactive Excel workbook program used to evaluate groundwater age distributions from environmental tracer data by using lumped parameter models (LPMs).

Choptank River near Greensboro, MD Orthophosphate, mg/L as P Estimated Concentration Surface in Color.
June 29, 2016

Exploration and Graphics for RivEr Trends (EGRET) is an R-package for the analysis of long-term changes in water quality and streamflow, including the water-quality method Weighted Regressions on Time, Discharge, and Season (WRTDS).

Screenshot from VS2DI.
June 29, 2016

The VS2DI package contains all the tools that a user needs to create, run, and view results for a simulation of flow and transport through variably saturated porous media.

Screenshot from PHREEQC.
June 29, 2016

PHREEQC is a general purpose geochemical model for reactions in water and between water and rocks and sediments.

Delineation of hydrologic response units of a hypothetical watershed.
June 29, 2016

The Precipitation-Runoff Modeling System (PRMS) is a deterministic, distributed-parameter, physical process based modeling system developed to evaluate the response of various combinations of climate and land use on streamflow and general watershed hydrology.

Steady-flow head distribution plot from PHAST.
June 28, 2016

PHAST is a 3D groundwater flow and solute transport model that has extensive capabilities to simulate water-rock and biogeochemical reactions that include all of the reactions available in PHREEQC.

Screenshot from ModelMuse.
June 28, 2016

ModelMuse is a graphical user interface (GUI) for the U.S. Geological Survey (USGS) models MODFLOW-2005, MODFLOW-LGR, MODFLOW-NWT, MODPATH, ZONEBUDGET, and PHAST and for MT3DMS.