SDA_query

<p>A character string representing a SQL query to the SDA service</p>

<p><code>SDA_query</code> submit an SQL or SQL Data Shaping query to retrieve data from the Soil Data Mart.
Please see https://sdmdataaccess.sc.egov.usda.gov/Query.aspx for guidelines</p>

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).

SDA_query: Submit a Soil Data Access (SDA) Query

Description

Usage

Arguments

Value