Software
An official USGS software project is code reviewed and approved at the bureau-level for distribution.
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carpIPM R code carpIPM R code
Fish grow continuously. Integral projection models (IPM) model size continuously. We developed an IPM for fish. We specifically developed the model for grass carp, however, the model could also be applied to species with similar life-histories such as other carp species. We included YY-males within the model because releasing YY-males has been proposed a control method for the species...
CE-QUAL-W2 - Hydrodynamic and Water Quality Model CE-QUAL-W2 - Hydrodynamic and Water Quality Model
CE-QUAL-W2 is a water quality and hydrodynamic model in 2D (longitudinal-vertical) for rivers, estuaries, lakes, reservoirs and river basin systems. W2 models basic eutrophication processes such as temperature-nutrient-algae-dissolved oxygen-organic matter and sediment relationships.
CRT: Cascade Routing Tool to Define and Visualize Flow Paths for Grid-Based Watershed Models CRT: Cascade Routing Tool to Define and Visualize Flow Paths for Grid-Based Watershed Models
The U.S. Geological Survey Cascade Routing Tool (CRT) is a computer application for watershed models that include the coupled Groundwater and Surface-water FLOW model GSFLOW and the Precipitation-Runoff Modeling System (PRMS). CRT generates output to define cascading surface and shallow subsurface flow paths for grid-based model domains.
eDNAoccupancy eDNAoccupancy
This repository contains the source code and package for the eDNAoccupancy package. This readme file contains the installation instructions for the package. The purpose of the R package is to fit three-level occupancy models. Although designed with eDNA-based observations, the package can be used for any occupancy situation with sampling and sub-sampling.
energySim: an R package Spatial energySim: an R package Spatial
Petroleum resource assessments provide statistical insight into the scale and spatial occurrence of oil and gas accumulations. Similarly, environmental or ecological assessments provide insight into the extent and patterns of ecological resources associated with ecosystems in a region. energySim is an implementation of an approach to link subsurface petroleum resources with ecological...
Evidence of Absence (EoA) Software and User's Guide Evidence of Absence (EoA) Software and User's Guide
Software to Estimate Bird and Bat Fatality at Wind Farms
Evolutionary Ecology Software Evolutionary Ecology Software
The programs perform input file formation, distribution visualization, individual-based dynamic population simulation, pedigree accuracy assessment, effective population si
fatalityCMR fatalityCMR
Capture-recapture software to correct raw counts of wildlife fatalities using trial experiments for carcass detecition probability and persistence time.
Fortran Program for Estimating Stream Transit Losses of Reusable Water, El Paso and Pueblo Counties, Colorado Fortran Program for Estimating Stream Transit Losses of Reusable Water, El Paso and Pueblo Counties, Colorado
The transit-loss accounting program, which has been in continuous daily use in some form since April 1989, has provided water-rights administrators with a tool to effectively manage RRFs and administer water diversion priorities along Fountain Creek on a daily basis.
GRIDGEN: A Program for Generating Unstructured Finite-Volume Grids GRIDGEN: A Program for Generating Unstructured Finite-Volume Grids
GRIDGEN is a program for generating layered quadtree grids for MODFLOW-USG.
landslides-metadata landslides-metadata
Automate production of metadata following the USGS geospatial metadata format.
landslides-mLS landslides-mLS
mLS is a function that estimates the landslide magnitude (mLS) from cutoff (smallest area that follows power law), beta (power-law exponent), and an array of areas derived from a landslide inventory following the methods of Tanyas and others (in prep). The function plots the best power-law fit for the medium and large landslides and the frequency-area distribution of the analyzed...