Category: data-science

Basic dataRetrieval tutorial for USGS water data in R.

Access subsets of NHDPlus data and discover sites on the river network with the hydro Network Linked Data Index. Navigation types include upstream mainstem, upstream with tributaries, downstream mainstem and downstream with diversions. Services to provide a basin boundary, linked NWIS stream gage sites, water quality data sites, and twelve digit hydrologic unit code (HUC) watershed outlets.

An update on the Network Linked Data Index Web Application Programming Interface and Client Applications

Compressed formats, Zarr and Parquet scale much better for retrieving, reading, and storing USGS discharge time series data.

Convert wide water quality data wide to long with new tidyverse convention.

Exploring file format options in R.

About the USGS Water Data for the Nation blog.

Qualitative, diverging, and sequential color schemes by Paul Tol.

An analysis showing how to find the place in the US furthest from water.

Brief introduction to version control, Git, and GitHub; plus, resources for learning more.

Basic mapping in R with the maps and ggmap package

Identifying boxplot limits and styles in ggplot2.