get_ssurgo_study_area

<code>get_ssurgo_study_area</code> returns a named list of length 2:<ol>
<li>'spatial': A <code><a href="https://r-spatial.github.io/sf/reference/sf.html">Simple Feature</a></code> of soil mapunits
in the template, and</li>
<li>'tabular': A named list of <code><a href="/link/data.frame?package=FedData&version=4.0.1" data-mini-rdoc="FedData::data.frame">data.frame</a>s</code> with the SSURGO tabular data.</li>
</ol>

internal

Functions to automate downloading geospatial data available
from several federated data sources (mainly sources maintained by the
US Federal government). Currently, the package enables extraction from
nine datasets: The National Elevation Dataset digital elevation
models (1 and 1/3 arc-second; USGS); The National Hydrography Dataset
(USGS); The Soil Survey Geographic (SSURGO) database from the National
Cooperative Soil Survey (NCSS), which is led by the Natural Resources
Conservation Service (NRCS) under the USDA; the Global Historical
Climatology Network (GHCN), coordinated by National Climatic Data
Center at NOAA; the Daymet gridded estimates of daily weather
parameters for North America, version 4, available from the Oak Ridge
National Laboratory's Distributed Active Archive Center (DAAC); the
International Tree Ring Data Bank; the National Land Cover
Database (NLCD); the Cropland Data Layer from the National Agricultural
Statistics Service; and the PAD-US dataset of protected area boundaries
from the USGS.

R. Bocinsky

FedData

Functions to Automate Downloading Geospatial Data Available from
Several Federated Data Sources

Dylan Beaudette

Scott Chamberlain

Jeffrey Hollister

Julia Gustavsen

get_ssurgo_study_area function

<dl><dt>template</dt>
<dd>An <code><a href="https://r-spatial.github.io/sf/reference/sf.html">Simple Feature</a></code>
or <code><a href="/link/SpatRaster?package=FedData&version=4.0.1" data-mini-rdoc="FedData::SpatRaster">SpatRaster</a></code> object to serve as a template for cropping.
If missing, whose study area is returned</dd>
<dt>area</dt>
<dd>A character string indicating the SSURGO study area to be downloaded.</dd>
<dt>date</dt>
<dd>A character string indicating the date of the most recent update to the SSURGO
area for these data. This information may be gleaned from the SSURGO Inventory (<code>get_ssurgo_inventory</code>).</dd>
<dt>raw.dir</dt>
<dd>A character string indicating where raw downloaded files should be put.
The directory will be created if missing.</dd></dl>

Arguments

<code>get_ssurgo_study_area</code> returns a named list of length 2:<ol>
<li>'spatial': A <code><a href='https://r-spatial.github.io/sf/reference/sf.html'>Simple Feature</a></code> of soil mapunits
in the template, and</li>
<li>'tabular': A named list of <code><a href='https://rdrr.io/r/base/data.frame.html'>data.frame</a>s</code> with the SSURGO tabular data.</li>
</ol>

Download and crop the spatial and tabular data for a SSURGO study area. — get_ssurgo_study_area

<dl>

<dt>template</dt>
<dd>An <code><a href='https://r-spatial.github.io/sf/reference/sf.html'>Simple Feature</a></code>
or <code><a href='https://rdrr.io/pkg/terra/man/SpatRaster-class.html'>SpatRaster</a></code> object to serve as a template for cropping.
If missing, whose study area is returned</dd>


<dt>area</dt>
<dd>A character string indicating the SSURGO study area to be downloaded.</dd>


<dt>date</dt>
<dd>A character string indicating the date of the most recent update to the SSURGO
area for these data. This information may be gleaned from the SSURGO Inventory (<code>get_ssurgo_inventory</code>).</dd>


<dt>raw.dir</dt>
<dd>A character string indicating where raw downloaded files should be put.
The directory will be created if missing.</dd>

</dl>

get_ssurgo_study_area: Download and crop the spatial and tabular data for a SSURGO study area.

Description

Usage

Value

Arguments