Software

This software release is a Matlab code that can be used to count acoustic impulses from coarse sediment particle collisions during sediment transport in rivers. The code also uses either a user defined threshold (preferred) or threshold computed from the overall noise of the audio files. Counts impulses exceeding the threshold which are assumed to be particle impacts of course (gravel...

This toolbox was developed for use on mine waste sites in the state of Alaska. Many of these are placer mining sites, with small waste piles spread along a stream bed. The tool to calculate mine waste volume lets the user select between two different methods: surface difference and height estimation. The surface difference method was designed to estimate the volume of the stream bed...

MODFLOW is a popular open-source groundwater flow model distributed by the U.S. Geological Survey.

MODFLOW 6 is an object-oriented program and framework developed to provide a platform for supporting multiple models and multiple types of models within the same simulation (Hughes and others, 2017; Langevin and others, 2024). This version of MODFLOW is labeled with a "6" because it is the sixth core version of MODFLOW to be released by the USGS (previous core versions were released in...

Desktop GUI software used by analysts for operational aftershock forecasting (OAF). Can load data from Comcat and other sources, fit aftershock model parameters, generate aftershock forecasts, and display plots of the results. An analyst can adjust model parameters, select forecasting options, send commands to the OAF servers, and send forecasts to PDL.

The effects of winter environmental conditions on lake ecology can be highly variable. Ice and overlying snow isolate the water below, impeding exchange of materials among water, atmosphere, and the watershed. Even with these limitations, biological communities under the ice can persist, where cold tolerant taxa can be especially abundant. Because many under-ice taxa tend to have a suite...

The National Water Availability Data Companion (NWDC) Interactive Map allows users to explore USGS modeled water data. The interactive map can be found at https://water.usgs.gov/nwaa-data/interactive-map.

The oilmapr package is designed to help users efficiently map time-stamped oil and gas well activity data. This package was originally built to use with data retrieved from the Wyoming Oil & Gas Conservation Commission (WOGCC) online database. With this package, users can generate shapefiles of active well locations, create raster datasets representing well densities across user...

Technical documentation for the products that the operational aftershock forecasting (OAF) system transmits to PDL. The "oaf" product contains the aftershock forecast, and the "event-sequence" product contains the earthquake sequence definition.

This code set is an R workflow for phenological date matching to provide an open-source solution for projects with limited funding to allow users to calculate Normalized Difference Vegetation Index (NDVI) from sentinel-2 imagery dates specified by a user supplied date raster (phenology raster) for mapping and forecasting geographic distributions of invasive plant species at large spatial...

The PAMF Model is the foundation of the Phragmites Adaptive Management Framework. PAMF is an adaptive management and collective learning program that anyone managing Phragmites can join. Participants from around the Great Lakes basin submit Phragmites monitoring and management data to bolster the PAMF predictive model, which uses participant data to continually 'learn' more about which...

plag is a tool for conducting diffusion chronometry modeling in plagioclase feldspar. It contains many functions designed to calculate partition coefficients, diffusion coefficients, and set up diffusion models using common finite difference methods. It has a sophisticated monte carlo error propagation system to accurately obtain uncertainties on model timescales, and a way of easily...