Download seamless National Hydrography Dataset Version 2 (NHDPlusV2)

Source: R/downloading_tools.R

This function downloads and decompresses staged seamless NHDPlusV2 data. The following requirements are needed: p7zip (MacOS), 7zip (windows) Please see: https://www.epa.gov/waterdata/get-nhdplus-national-hydrography-dataset-plus-data for more information and metadata about this data.

Default downloads lower-48 only. See examples for islands. No Alaska data are available.

download_nhdplusv2(
  outdir,
  url = paste0("https://dmap-data-commons-ow.s3.amazonaws.com/NHDPlusV21/",
    "Data/NationalData/NHDPlusV21_NationalData_Seamless", "_Geodatabase_Lower48_07.7z"),
  progress = TRUE
)

Arguments

outdir

The folder path where data should be downloaded and extracted

url

the location of the online resource

progress

boolean display download progress?

Value

character path to the local geodatabase

Examples

if (FALSE) {
  download_nhdplusV2("./data/nhd/")

  download_nhdplusv2(outdir = "./inst/",
      url = paste0("https://dmap-data-commons-ow.s3.amazonaws.com/NHDPlusV21/",
                   "Data/NationalData/NHDPlusV21_NationalData_Seamless",
                   "_Geodatabase_HI_PR_VI_PI_03.7z"))
}