soilDB: ISSR800.wcs – R documentation

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ISSR800.wcs

ISSR-800 Web Coverage Service (WCS)

Description

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.

Usage

ISSR800.wcs(aoi, var, res = 800, quiet = FALSE)

Arguments

`aoi`	area of interest (AOI) defined using a `Spatial*`, `RasterLayer`, `sf`, `sfc` or `bbox` object or a `list`, see details
`var`	ISSR-800 grid name, see details
`res`	grid resolution, units of meters. The native resolution of ISSR-800 grids (this WCS) is 800m.
`quiet`	logical, passed to `download.file` to enable / suppress URL and progress bar for download. #' @details `aoi` should be specified as a `Spatial*`, `RasterLayer`, `sf`, `sfc`, or `bbox` object or a `list` containing: `aoi` bounding-box specified as (xmin, ymin, xmax, ymax) e.g. c(-114.16, 47.65, -114.08, 47.68) `crs` coordinate reference system of BBOX, e.g. '+init=epsg:4326' The WCS query is parameterized using `raster::extent` derived from the above AOI specification, after conversion to the native CRS (EPSG:6350) of the ISSR-800 grids. Variables available from this WCS can be queried using `WCS_details(wcs = 'ISSR800')`.

Value

raster object containing indexed map unit keys and associated raster attribute table

Note

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.

Author(s)

D.E. Beaudette and A.G. Brown

soilDB

Soil Database Interface

v2.6.1

GPL (>= 3)

Authors

Dylan Beaudette [aut], Jay Skovlin [aut], Stephen Roecker [aut], Andrew Brown [aut, cre]

Initial release

2021-04-7