download_data

This function makes it easy to implement timestamping and no-clobber of files.

internal

Download 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 (<https://www.usgs.gov/3d-elevation-program> 1 and 1/3 arc-second;
USGS); The National Hydrography Dataset
(<https://www.usgs.gov/national-hydrography/national-hydrography-dataset>;
USGS); The Soil Survey Geographic (SSURGO) database from the National
Cooperative Soil Survey (<https://websoilsurvey.sc.egov.usda.gov/>; NCSS),
which is led by the Natural Resources
Conservation Service (NRCS) under the USDA;
the Global Historical Climatology Network (<https://www.ncei.noaa.gov/products/land-based-station/global-historical-climatology-network-daily>; 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
(<https://daymet.ornl.gov/>; DAAC); the
International Tree Ring Data Bank; the National Land Cover
Database (<https://www.mrlc.gov/>; NLCD); the Cropland Data Layer from the National Agricultural
Statistics Service (<https://www.nass.usda.gov/Research_and_Science/Cropland/SARS1a.php>; NASS);
and the PAD-US dataset of protected area boundaries (<https://www.usgs.gov/programs/gap-analysis-project/science/pad-us-data-overview>; USGS).

R. Bocinsky

FedData

Download Geospatial Data Available from Several Federated Data
Sources

Dylan Beaudette

Scott Chamberlain

Jeffrey Hollister

Julia Gustavsen

download_data function

<dl><dt>url</dt>
<dd>The location of a file.</dd>
<dt>destdir</dt>
<dd>Where the file should be downloaded to.</dd>
<dt>timestamping</dt>
<dd>Should only newer files be downloaded?</dd>
<dt>nc</dt>
<dd>Should files of the same type not be clobbered?</dd>
<dt>verbose</dt>
<dd>Should cURL output be shown?</dd>
<dt>progress</dt>
<dd>Should a progress bar be shown with cURL output?</dd></dl>

Arguments

Use curl to download a file. — download_data

<dl>

<dt>url</dt>
<dd>The location of a file.</dd>


<dt>destdir</dt>
<dd>Where the file should be downloaded to.</dd>


<dt>timestamping</dt>
<dd>Should only newer files be downloaded?</dd>


<dt>nc</dt>
<dd>Should files of the same type not be clobbered?</dd>


<dt>verbose</dt>
<dd>Should cURL output be shown?</dd>


<dt>progress</dt>
<dd>Should a progress bar be shown with cURL output?</dd>

</dl>

download_data: Use curl to download a file.

Description

Usage

Value

Arguments

Details