How to know the datum of a netcdf file
Added by Naveen Pothula over 5 years ago
Hi all,
I have climate data of a two variable in two .nc files. They are a.nc and w.nc.
a.nc is having data on curvilinear grids with grid mapping as "rotated pole", while w.nc has data on lonlat grid without any grid mapping. Both the files follow CF-1.4 conventions.
How do I know the datum of both of them.Kindly explain the grid type "lonlat". Is the datum defined for both of the netcdf files?
Can some one help?
best regards,
naveen
Replies (1)
RE: How to know the datum of a netcdf file - Added by Ralf Mueller over 5 years ago
hi!
I am not sure if this is what you are looking for, but: Both files have a global attribute called creation_date.
lonlat is the very basic gridtype often called regular grid. The known longitude-latitude-grid for the earth is of type lonlat. Technically it meansm that there are two independent coordinated axis for lons (-180...180) and lats (-90 ... 90)
hth
ralf