get_nhd: Download and crop the National Hydrography Dataset.

In FedData: Functions to Automate Downloading Geospatial Data Available from Several Federated Data Sources

Download and crop the National Hydrography Dataset.

Description

get_nhd returns a list of Simple Feature objects extracted from the National Hydrography Dataset.

Usage

get_nhd(
  template,
  label,
  nhdplus = FALSE,
  extraction.dir = file.path(tempdir(), "FedData", "extractions", "nhd", label),
  force.redo = FALSE
)

Arguments

template	An Simple Feature or SpatRaster object to serve as a template for cropping.
label	A character string naming the study area.
nhdplus	Extract data from the USGS NHDPlus High Resolution service (experimental)
extraction.dir	A character string indicating where the extracted and cropped NHD data should be put.
force.redo	If an extraction for this template and label already exists, should a new one be created?

Value

A list of sf collections extracted from the National Hydrography Dataset.

Examples

## Not run: 
# Get the NHD (USA ONLY)
NHD <- get_nhd(
  template = FedData::meve,
  label = "meve"
)
NHD
NHD %>%
  plot_nhd(template = FedData::meve)

## End(Not run)

FedData documentation built on Oct. 3, 2023, 9:07 a.m.