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Software

An official USGS software project is code reviewed and approved at the bureau-level for distribution.

Filter Total Items: 622

NetCDF-CF Geometry and Timeseries Tools for R

Tools to create time series and geometry 'NetCDF' files.

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. 

energySIM: An R Package

Petroleum resource assessments provide statistical insight into the scale and spatial occurrence of oil and gas accumulations. 

Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) Modeling System

The Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) Modeling System is an agglomeration of open-source modeling components that has been tailored to investigate coupled processes of the atmosphere, ocean, and waves in the coastal ocean.

An Open Source Spreadsheet for Calculation of Equivalent Freshwater Altitude in Brackish Water Mixing Zone of an Aquifer with Documentation on Appropriate Use

This software release documents an open source spreadsheet that was developed by the USGS in 2007 and modified herein for general use for calculation of equivalent freshwater altitude at wells where the water quality data indicate the well is tapping brackish areas of an aquifer system. One example of this includes coastal wells in the diffusion/mixing or transition zone of the aquifer near the fr

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.

COAWST Modeling System v3.4

Coupled ocean atmosphere wave sediment transport modeling system

Slab2

A three-dimensional compilation of global subduction geometries, separated into regional models for each major subduction zone.

STATIC1D

These programs solve the equations of static equilibrium in a spherically layered isotropic medium using a decomposition into spheroidal and toroidal motions.

strainz17: Earthquake Strains and Rotations

Strainz17.m is a MATLAB-language function for deriving the best-fitting uniform strain tensor and rigid body rotation as functions of time, based on ground displacement or velocity recordings made on an array of sensors.

PS2FF

Produce approximated finite fault distances and variance corrections given point source information, for example, Repi (epcentral distance) to Rjb (Joyner-Boore distance) or Rrup (closest distance to rupture).

Quakeml

A uniform ANSS standard for seismic parametric data.