Get 800m gridded soil properties from SoilWeb ISSR-800 Web Coverage Service (WCS)Source:
Intermediate-scale gridded (800m) soil property and interpretation maps from aggregated SSURGO and STATSGO data. These maps were developed by USDA-NRCS-SPSD staff in collaboration with UCD-LAWR. Originally for educational use and interactive thematic maps, these data are a suitable alternative to gridded STATSGO-derived thematic soil maps. The full size grids can be downloaded here.
area of interest (AOI) defined using a
bboxobject, OR a
list, see details
ISSR-800 grid name (case insensitive), see details
grid resolution, units of meters. The native resolution of ISSR-800 grids (this WCS) is 800m.
logical, passed to
curl::curl_downloadto enable / suppress URL and progress bar for download.
A SpatRaster (or RasterLayer) object containing indexed map unit keys and associated raster attribute table or a try-error if request fails. By default, spatial classes from the
terra package are returned. If the input object class is from the
sp packages a RasterLayer is returned.
aoi should be specified as a
bbox object or a
bounding-box specified as (xmin, ymin, xmax, ymax) e.g. c(-114.16, 47.65, -114.08, 47.68)
coordinate reference system of BBOX, e.g. 'OGC:CRS84' (EPSG:4326, WGS84 Longitude/Latitude)
The WCS query is parameterized using a rectangular extent derived from the above AOI specification, after conversion to the native CRS (EPSG:5070) of the ISSR-800 grids.
Variables available from this WCS can be queried using
WCS_details(wcs = 'ISSR800').
There are still some issues to be resolved related to the encoding of NA Variables with a natural zero (e.g. SAR) have 0 set to NA.