npn_download_geospatial {rnpn}

Download Geospatial Data

Description

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.

Details

Information about the layers can also be viewed at the getCapbilities page directly: https://geoserver.usanpn.org/geoserver/wms?request=GetCapabilities

Value

Raster object meeting the coverage_id, date and format parameters specified.

Examples

## Not run: 
ras<-npn_download_geospatial("si-x:30yr_avg_six_bloom","255")

## End(Not run)