download_itrdb

A character string indicating where raw downloaded files should be put.
The directory will be created if missing. Defaults to './RAW/ITRDB/'.

raw.dir

If a download already exists, should a new one be created? Defaults to FALSE.

force.redo

Downloads and parses the latest zipped (numbered) version of the ITRDB.
This function includes improvements to the <code>read_crn</code> function from the 
dplR library. The principle changes are better parsing of metadata, and support
for the Schweingruber-type Tucson format. Chronologies that are unable to be read
are reported to the user.

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 seven 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 3, available from the Oak Ridge National Laboratory's
Distributed Active Archive Center (DAAC); the International Tree Ring Data Bank;
and the National Land Cover Database (NLCD).

R. Bocinsky

FedData

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

Dylan Beaudette

Scott Chamberlain

download_itrdb function

<dl><dt>raw.dir</dt>
<dd>A character string indicating where raw downloaded files should be put.
The directory will be created if missing. Defaults to './RAW/ITRDB/'.</dd>
<dt>force.redo</dt>
<dd>If a download already exists, should a new one be created? Defaults to FALSE.</dd></dl>

Arguments

Download the latest version of the ITRDB. — download_itrdb

<dl>

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


<dt>force.redo</dt>
<dd>If a download already exists, should a new one be created? Defaults to FALSE.</dd>

</dl>

download_itrdb: Download the latest version of the ITRDB.

Description

Usage

Value

Arguments