nhdplusTools (version 0.3.16)

download_nhdplusv2: Download seamless National Hydrography Dataset Version 2 (NHDPlusV2)

Description

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.

Usage

download_nhdplusv2(
  outdir,
  url = paste0("https://s3.amazonaws.com/edap-nhdplus/NHDPlusV21/",
    "Data/NationalData/NHDPlusV21_NationalData_Seamless", "_Geodatabase_Lower48_07.7z")
)

Arguments

outdir

The folder path where data should be downloaded and extracted

url

the location of the online resource

Value

the path to the local geodatabase

Examples

# NOT RUN {
  download_nhdplusV2("./data/nhd/")

  download_nhdplusv2(outdir = "./inst/",
      url = paste0("https://s3.amazonaws.com/edap-nhdplus/NHDPlusV21/",
                   "Data/NationalData/NHDPlusV21_NationalData_Seamless",
                   "_Geodatabase_HI_PR_VI_PI_03.7z"))
# }