hyRefactor

Tools for Manipulating the NHDPlus Network in Preparation for Hydrologic Modeling

The purpose of this software release is to document a version of a methodology and associated implementing software used to create a separate Data Release (https://www.sciencebase.gov/catalog/item/60be0e53d34e86b93891012b). This software was used to make derivatives of the features in the NHDPlus geospatial dataset for use in hydrologic model applications. It is not intended for users to deploy/use and may produce unexpected results outside the workflow and environment in which it was implemented. For users seeking to deploy a version of this software, please see https://github.com/noaa-owp/hydrofab.

Installation:

install.packages("remotes")
remotes::install_git("https://code.usgs.gov/Water/hyRefactor")

This package is based around the same concepts as nhdplusTools and uses its utilities extensively.

Rendered documentation can be found here.
Note: Large vignettes have been rendered to html and need to be downloaded and opened in a browser.

What is Refactoring in the context of hydrographic data?

The concept of refactoring as intended here includes:

splitting large or long catchments to create a more uniform catchment size distribution
collapsing catchment topology to eliminate small catchments

The package also includes "aggregation" functionality: 3) aggregating catchments into groups based on existing network topology

This type of functionality is especially relevant to modeling applications that need specific modeling unit characteristics but wish to preserve the network as much as possible for interoperability.

Check notes:

In addition to typical R package checking, a Dockerfile is included in this repository. Once built, it can be run with the following command.

docker build -t hyrefactor_test .

docker run --rm -it -v $PWD:/src hyrefactor_test /bin/bash -c "cp -r /src/* /check/ && cp /src/.Rbuildignore /check/ && cd /check && Rscript -e 'devtools::build()' && R CMD check --as-cran ../hyRefacto_*"

Disclaimer

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.

This software is in the public domain because it contains materials that originally came from the U.S. Geological Survey (USGS), an agency of the United States Department of Interior. For more information, see the official USGS copyright policy at https://www.usgs.gov/visual-id/credit_usgs.html#copyright

Although this software program has been used by the USGS, no warranty, expressed or implied, is made by the USGS or the U.S. Government as to the accuracy and functioning of the program and related program material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.

This software is provided "AS IS."