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Nutrient Explorer: A Downloadable R Shiny Analytical Framework to Visualize and Investigate Drivers of Surface Water Quality (Version 1.0)

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  • History
  • Downloads
This is a downloadable (zip file) interactive user interface (UI), which we developed using R code (R Shiny), to quantify the relationships between water quality and landscape variables.  For this UI we utilized total phosphorus (TP) concentrations measurements from lakes in 17 northern midwestern and northeastern U.S. states (LAGOS-NE), which were combined with watershed-scale landscape metrics.  The UI can we create visualizations of the datasets and relationships across space and time.  The UI can also develop random forest and multilinear regression models to determine which factors best explain spatial variability in TP and where lake TP is highest across the Upper Midwest and Northeast U.S.

Impact/Purpose

This is a downloadable interactive user interface (UI), which we developed using R code (R Shiny), to quantify the relationships between water quality and landscape variables.  This product is associated with a journal article and readers of the article will be able to download the R code and run similar vizualizations and models created by this UI. 

Citation

Pennino, M., M. Fry, R. Sabo, AND Jim Carleton. Nutrient Explorer: A Downloadable R Shiny Analytical Framework to Visualize and Investigate Drivers of Surface Water Quality (Version 1.0). U.S. Environmental Protection Agency, Washington, DC, 2023.

History/Chronology

Date Description
01- Jul 2023 EPA released a R Shiny downloadable application (zip) and released this additionally on the USEPA GitHub account. The accompanying dataset is available from the GitHub site.

Additional Information

The downloads include a (Zip) file of the R Studio files necessary to install the R Shiny application with instructions. Additionally, from the GitHUb link you are able to use the download function to pull the R studio code and download it in a similar fashion. In either place the Nutrient Explorer code is at version 1.0. To obtain a sample of the data sets, due to the size of this file - they are only available from the GitHub site.

Download(s)

  • Nutrients Explorer Downloadable R Shiny Application (v.1.0) (ZIP)  (24.2 MB, about ZIP)
  • USEPA - Nutrient Explorer (GitHub) Downloadable R Shiny Application
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Last updated on July 03, 2023
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