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[CF-metadata] CF-convention for three-dimensional lat/long coordinate variables?

From: John Caron <caron>
Date: Fri, 05 Mar 2010 14:54:22 -0700

what does the 3rd dimension represent ?

On 3/5/2010 1:30 PM, H. Joe Lee wrote:
> Hi,
>
> I have a satellite data that stores lat / lon information in 3-D
> array and I'm wondering how such data can meet the CF convention.
>
> Following the
> http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/ch05s02.html
> page example convention, here's the description of my data:
>
> -------------------------
> dimensions:
>
> d0 = 447 ;
> d1 = 3 ;
> d2 = 360;
> lev = 18 ;
>
> variables:
> float V(lev,d0,d1,d2) ;
> T:long_name = "Precipitable Water" ;
> T:units = "cm" ;
> T:coordinates = "lon lat" ;
> float lev(lev) ;
> lev:long_name = "pressure level" ;
> lev:units = "hPa" ;
> float lon(d0,d1,d2) ;
> lon:long_name = "longitude" ;
> lon:units = "degrees_east" ;
> float lat(d0,d1,d2) ;
> lat:long_name = "latitude" ;
> lat:units = "degrees_north" ;
> -----------------------------------------------
>
> My question is, should lat / lon coordinate variables be always 2-D
> array in CF-convention for two dimensional coordinate system?
>
> Thanks,
>
> --
> +1(217)265-7710
> http://hdfeos.org
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Received on Fri Mar 05 2010 - 14:54:22 GMT

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