Software
An official USGS software project is code reviewed and approved at the bureau-level for distribution.
Filter Total Items: 912
Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) Modeling System 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 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...
Point-Source Load Estimation Tool (PSLoadEsT) 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 COAWST Modeling System v3.4
Coupled ocean atmosphere wave sediment transport modeling system
Slab2 Slab2
A three-dimensional compilation of global subduction geometries, separated into regional models for each major subduction zone.
STATIC1D 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: 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 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).
SATSI SATSI
SATSI (Spatial And Temporal Stress Inversion) is a modified version of Michael's (JGR 1984, 1987) code that inverts focal mechanism data for a spatially and/or temporally varying stress field.
MacR1D MacR1D
MacR1D is a one-dimensional seismic travel-time calculator for Macintosh.
MacRay MacRay
MacRay is a general purpose two-dimensional seismic ray-tracer for Macintosh.