Hi,
I am adding grid mapping information to my NetCDF files. My data are on a
lon-lat grid on a spherical Earth. I can put in the standard CF attributes,
grid_mapping_name etc, but also want to include the EPSG and WKT codes to help
software applications that might want these. I have not been able to find out
how this is done in NetCDF-CF, so am using this format:
=
int crs ;
crs:grid_mapping_name = "latitude_longitude" ;
crs:earth_radius = 6371007.0 ;
crs:prime_meridian = 0.0 ;
crs:epsg_code = 4047 ;
crs:wkt = "GEOGCS[\"Unspecified datum based upon the GRS 1980
Authalic Sphere\",DATUM[\"Not_specified_based_on
_GRS_1980_Authalic_Sphere\",SPHEROID[\"GRS 1980 Authalic
Sphere\",6371007,0,AUTHORITY[\"EPSG\",\"7048\"]],AUTHORITY[\"EPSG\",\
"6047\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4047\"]]"
;
What do other people do when including this extra grid information?
Cheers,
Tim Hume
Centre for Australian Weather and Climate Research
Bureau of Meteorology
Melbourne
Australia
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