Software
An official USGS software project is code reviewed and approved at the bureau-level for distribution.
Filter Total Items: 922
Scoops3D Scoops3D
Scoops3D is software to analyze three-dimensional slope stability throughout a digital landscape.
Vegetation_LTDS Vegetation_LTDS
Line-transect distance sampling (LTDS) surveys are commonly used to estimate abundance of animals or objects. In terrestrial LTDS surveys of gopher tortoise (Gopherus polyphemus) burrows, the presence of ground-level vegetation significantly decreases detection of burrows of all sizes, but no field or analytical methods exist to control for spatially heterogeneous vegetation obstruction...
HASP HASP
The Hydrologic Analysis Package (HASP) can retrieve groundwater level and groundwater quality data, aggregate these data, plot them, and generate basic statistics. One of the benefits of HASP is its ability to aggregate two time-series of data into one record and generate statistics and graphics on hat record. By merging two data sets together, users can view and manipulate a much longer...
Keys Carbonate Budget Calculations and Analysis Keys Carbonate Budget Calculations and Analysis
The code 'Keys Carbonate Budget Calculations', written in R (v.4.0.4; https://www.R-project.org/), uses benthic coral-reef survey data and fish survey data to calculate coral-reef carbonate budgets following the ReefBudget v2 methodology (http://geography.exeter.ac.uk/reefbudget/; Perry and Lange, 2019). The carbonate budgets include estimates (means +/- standard errors) of gross...
MODFLOW 6 - LACP MODFLOW 6 - LACP
MODFLOW 6 - LACP uses the MODFLOW 6.4.0 source code and modifies the Horizontal Flow Barrier (HFB) package to allow simulation of vertical hydraulic conductance (CV) by connection rather than by cell, an option available for previous versions of MODFLOW (USG). The MODFLOW 6 - LACP HFB package is used to simulate thin, vertical, and low-permeability geologic features (barriers) and acts...
Code for analysis of polar bear maternal den abundance and distribution in four regions of northern Alaska and Canada within the Southern Beaufort Sea subpopulation boundary (1982-2015) Code for analysis of polar bear maternal den abundance and distribution in four regions of northern Alaska and Canada within the Southern Beaufort Sea subpopulation boundary (1982-2015)
We have archived the derived data files and R/JAGS code for our analysis as a U.S. Geological Survey data release (link ). The code is divided into three R scripts: 1) pbdens_landdens_JWM.r contains R code for fitting hierarchical Bayesian models of polar bear maternal den abundance and distribution for the Southern Beaufort Sea (SBS) subpopulation, 1982-2015. This script requires the...