FedData - Functions to Automate Downloading Geospatial Data Available from
Several Federated Data Sources
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.