[CF-metadata] Vertical coordinates & boundaries

From: Maarten Sneep <maarten.sneep>
Date: Thu, 19 Feb 2015 19:03:42 +0100

On 19-02-15 18:56, Jim Biard wrote:
> Maarten,
>
> It would, instead be something like this:
>
> dimensions:
> lon = 360;
> lat = 180;
> layer = 18;
> vertices = 2;
>
> variables:
> float lat(lat);
> lat:long_name = "latitude";
> lat:units = "degrees_north";
> lat:bounds = "lat_bnds";
> float lon(lon);
> lon:long_name = "longitude";
> lon:units = "degrees_east";
> lon:bounds = "lon_bnds";
> float pressure(layer, lon, lat);
> pressure:long_name = "pressure grid";
> pressure:units = "hPa";
> pressure:bounds = "pressure_bnds";
> float lat_bnds(lon,vertices);
> float lon_bnds(lat,vertices);
> float pressure_bnds(layer,lon,lat,vertices);
> float O3(layer, lon, lat);
> O3:units = "1e-9";
> O3:coordinates = "pressure";
>
> You can have a layer index coordinate variable if you require/desire
> one, but it isn't necessary. The bounds attribute is applied to the
> pressure variable, and a coordinates attribute is applied to the O3
> variable naming the pressure variable. The pressure variable is an
> "auxiliary coordinate", and must be explicitly associated with the O3
> variable in this way.

Thanks, understood.

Best,

Maarten
Received on Thu Feb 19 2015 - 11:03:42 GMT