Software
An official USGS software project is code reviewed and approved at the bureau-level for distribution.
Filter Total Items: 709
RegionGrow3D
RegionGrow3D (RG3D) is a software for computing slope stability on a regional scale within a three-dimensional (3D), limit-equilibrium framework. RG3D efficiently computes discrete, 3D landslide geometries throughout a digital landscape. Potential landslide source areas are identified and grown downhill until force equilibrium is achieved.
Python for Hydrology Self Study Curriculum
This repository contains study materials for python programming for hydrologic applications and a focus on groundwater modeling with flopy. The materials are used in an in-person curriculum at the USGS and provided here for reference for the larger hydrologic community.
plumeria_wd software v3.0.0
Plumeria is a one-dimensional model for wind-driven volcanic plumes. It was originally written in 2007 in Visual Basic to analyze plumes during the 2004-2008 eruption of Mount St. Helens. The version in this repository, Plumeria_wd, has been modified for crosswinds, translated to Fortran, and tested by comparing predicted with observed plume heights from multiple eruptions. It was compared with
dem_getter Python tool for acquiring digital elevation models and derivatives from The National Map
This repository houses a set of Python tools to expedite the acquisition of 3DEP DEM data. These tools were designed to help geologists in the National Cooperative Geologic Mapping Program more efficiently produce high-resolution base maps and tailored derivative products that help identify and characterize geologic features. These derivatives include hillshades and slope maps, as well as more com
Methylmercury Effects on Birds: Percent Injury Tool
Welcome to The Bird Mercury Tool website. Please follow the guidance below to download the tool and user guide.
The Bird Mercury Tool: Estimating Methylmercury Injury to Birds can be used by practitioners to help interpret injury to birds caused by methylmercury concentrations in bird tissues or diet.
The dataset, statistical models, and assumptions used within this tool have been published separa
pfdf 1.1.0
This release add the following major features to pfdf:
* Comprehensive documentation
* Raster preprocessing
* Parallelization options when locating outlet basins
* Windowed raster reading
The release also provides minor improvements, as follows:
* Raster data/nodata masks,
* Improved model broadcasting options,
* The Segments.in_mask and Segments.in_perimeter methods
Sentinel Satellite Imagery Download Scripts
These Python scripts enable download of Sentinel 1 & 2 imagery for multiple study sites by accessing the Copernicus Data Base Ecosystem.
Code to analyze static occupancy of northwestern pond turtles (Actinemys marmorata) in timberland streams in the interior foothills of northern California
The purpose of this study was to evaluate the distribution of northwestern pond turtles (Actinemys marmorata) and invasive American bullfrogs (Lithobates catesbeianus) in private timberland streams of interior northern California, USA. Fieldwork for the study occurred in 2021-2022 in Lassen, Plumas, Shasta, Tehama, and Trinity counties, California, and involved visual encounter surveys and samplin
Code for a spatially interpolated integrated population model applied to simulations of spatially autocorrelated Greater Sage-Grouse (Centrocercus urophasianus) population data
This repository contains R code to:
1. Simulate spatially autocorrelated count and demographic data for 10 populations using mean and process variance estimates from a long-term (1938–2011), range-wide meta-analysis of Greater Sage-Grouse (Centrocercus urophasianus) population dynamics (Taylor et al., 2012).
2. Fit a spatially interpolated integrated population model (SIIPM) to the simulated da
GW-NDST software v 1.1.0
Official version 1.1.0 software release of the Groundwater-Nitrate Decision Support Tool (GW-NDST) for Wisconsin. This release (v1.1.0) is matched with and described by Juckem, P.F., Corson-Dosch, N.T., Schachter, L.A., Green, C.T., Ferin, K.M., Booth, E.G., Kucharik, C.J., Austin, B.P., and Kauffman, L.J., 2024, Design and calibration of a Nitrate Decision Support Tool for Groundwater wells in W
R and Python code for analysis of productivity in thousands of US lakes in response to climate over the last 30 years
Climate change is expected to increase lake productivity and algal blooms and cause regime shifts, particularly in human-impacted ecosystems. However, evidence is lacking for causal relationships between climate and lake productivity or for the nonlinear dynamics needed to demonstrate regime shifts. We modeled causal effects of climate on lake chlorophyll over 34 years in 24,452 US lakes. This rep
Satellite Tool for River Altimetry and eXtent in Alaska (SatTRAX-AK)
The USGS Satellite Tool for River Altimetry and eXtent in Alaska (SatTRAX-AK) is a Google Earth Engine application built for exploring Surface Water and Ocean Topography (SWOT) observable USGS gages reaches and Global Water Monitor (GWM) altimetry data for river surfaces. The application will run an analysis at select GWM sites to compute water extent and estimated water surface elevation derived