Software

MODFLOW is a popular open-source groundwater flow model distributed by the U.S. Geological Survey. 

ModelMuse is a graphical user interface (GUI) for the U.S. Geological Survey (USGS) models MODFLOW 6, MODFLOW–2005, MODFLOW-LGR, MODFLOW-LGR2, MODFLOW-NWT, MODFLOW-CFP, MODFLOW-OWHM, MODPATH, ZONEBUDGET, PHAST, SUTRA 2.2, SUTRA 3.0,  MT3D-USGS, and WellFootprint and the non-USGS programs MT3DMS and PEST.

MODFLOW-NWT is a Newton-Raphson formulation for MODFLOW-2005 to improve solution of unconfined groundwater-flow problems. MODFLOW-NWT is a standalone program that is intended for solving problems involving drying and rewetting nonlinearities of the unconfined groundwater-flow equation.

The Precipitation-Runoff Modeling System 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.

PHREEQC Version 3 is a computer program for speciation, batch-reaction, one-Ddmensional transport, and inverse geochemical calculations.

PHAST Is a computer program for simulating groundwater flow, solute transport, and multicomponent geochemical reactions.

FloPy is a Python package for creating, running, and post-processing MODFLOW-based models.

The Velocity Mapping Toolbox (VMT) is a Matlab-based software for processing and visualizing ADCP data collected along transects in rivers or other bodies of water. VMT allows rapid processing, visualization, and analysis of a range of ADCP datasets and includes utilities to export ADCP data to files compatible with ArcGIS, Tecplot, and Google Earth.

QRev is a USGS-developed MATLAB program that computes the discharge from a moving-boat ADCP measurement using data collected with any of the Teledyne RD Instrument (TRDI) or SonTek bottom tracking ADCPs. QRev improves the consistency and efficiency of processing streamflow measurements.

Tool to assist in selecting an appropriate extrapolation method for ADCP discharge computations.

AreaComp is a software for computing stage area ratings from hydrologic measurements.

Stationary Moving-Bed Analysis (SMBA) computes the dot product of the bottom track vector onto the unit water vector and determines the moving bed velocity in the upstream direction relative to the water velocity vector. This program is applicable to all stationary moving bed test.