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Re: 2D grids...

Gary,

> 
> 
> I was wondering if there was any way in the netCDF standard to have a 2-d dim-
> ension grid, ie, N "coordinates" each of which is a lat-lon pair, and then 
> each
> field is defined on that grid.
> 

Yes, I did something like this for the UWM/COADS data set (see CDL
below). The problem is that no software appear able to read it
directly. In retrospect, I believe it was a mistake, we should have
adopted something like the COARDS conventions (which I don't whether it
existed back in 1990).

   Arlindo.

...................................................................

netcdf sst {
dimensions:
        mon = 12 ;
        npoint = 42164 ;  // only ocean gridpoints

variables:
        short mon(mon) ;
                mon:long_name = "month" ;
        short lat(npoint) ;
                lat:long_name = "latitude of nth point" ;
                lat:units = "degrees_north" ;
                lat:add_offset = -90.5f ;
                lat:valid_range = 1s, 180s ;
        short lon(npoint) ;
                lon:long_name = "longitude of nth point" ;
                lon:units = "degrees_east" ;
                lon:add_offset = -0.5f ;
                lon:valid_range = 1s, 360s ;
        short clm(mon, npoint) ;
                clm:long_name = "1945-89 climatology for each month" ;
                clm:units = "celsius             " ;
                clm:scale_factor = 0.0099999998f ;
                clm:add_offset = 25.f ;
                clm:valid_range = -3495s, 858s ;

// global attributes:
                :source = "University of Wisconsin-Milwaukee Version 1.06 of 
02/11/93                      " ;
                :title = "sea surface temperature$" ;
}



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