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

From: H. Joe Lee <hyoklee>
Date: Fri, 5 Mar 2010 14:30:07 -0600

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
Received on Fri Mar 05 2010 - 13:30:07 GMT

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