Function for directly downloading any arbitrary Geospatial layer data from the NPN Geospatial web services.
Usage
npn_download_geospatial(
coverage_id,
date,
format = "geotiff",
output_path = NULL
)
Arguments
coverage_id
The coverage id (machine name) of the layer for which to retrieve.
Applicable values can be found via the npn_get_layer_details() function under the 'name' column.
date
Specify the date param for the layer retrieved. This can be a calendar
date formatted YYYY-mm-dd or it could be a string integer representing day of year.
It can also be NULL in some cases. Which to use depends entirely on the layer being
requested. More information available from the npn_get_layer_details() function.
format
The output format of the raster layer retrieved. Defaults to GeoTIFF.
output_path
Optional value. When set, the raster will be piped to the file
path specified. When left unset, this function will return a raster object.
Value
Raster object meeting the coverage_id, date and format parameters specified.
Details
Information about the layers can also be viewed at the getCapbilities page directly:
https://geoserver.usanpn.org/geoserver/wms?request=GetCapabilities