getPrjFromNCDF: Get projection from NetCDF-CF Grid Mapping
In dblodgett-usgs/NCDFSG: NetCDF-CF Simple Geometries

Description Usage Arguments Details Value Examples

This function takes a NetCDF-CF projection container and returns a proj4 string.

1	getPrjFromNCDF(gm)

`gm`	A list of attributes of the grid mapping variable as returned by ncdf or ncdf4's get attributes functions.

The WGS84 datum is used as a default if one os not provided in the projectiuon container, warnings will be provided in that case.

If only a semi_major axis is provided, a sperical earch is assumed.

https://en.wikibooks.org/wiki/PROJ.4 https://trac.osgeo.org/gdal/wiki/NetCDF_ProjectionTestingStatus http://cfconventions.org/cf-conventions/cf-conventions.html#appendix-grid-mappings

A proj4 string for use with the sp CRS function.

crs <- list(grid_mapping_name="latitude_longitude",
            longitude_of_prime_meridian = 0,
            semi_major_axis = 6378137,
            inverse_flattening = 298)
prj <- getPrjFromNCDF(crs)