[netcdf-java] ESRI implementation of ellipsoidal-earth

• To: "cf-metadata@xxxxxxxxxxxx" <cf-metadata@xxxxxxxxxxxx>, Java NetCDF <netcdf-java@xxxxxxxxxxxxxxxx>
• Subject: [netcdf-java] ESRI implementation of ellipsoidal-earth
• From: John Caron <caron@xxxxxxxxxxxxxxxx>
• Date: Tue, 01 Feb 2011 12:40:11 -0700

Apparently ESRI is willing to add support for CF 1.5 grid_mapping attributes 
for ellipsoidal-earth/geodetic-datum definitions in the Grid Mappings and 
Projections specification.

They are looking for sample data, especially using ellipsoidal parameters 
(semi_major_axis/semi_minor_axis/inverse_flattening). Does anyone have any?

Also, they are wondering what to use for the default ellipsoid when these are 
not specified. It seems to me the obvious candidates are 1) spherical earth 
with a standard radius, or 2) WGS84 ellipsoid.

Opinions?

John

• Follow-Ups:
  • Re: [netcdf-java] [CF-metadata] ESRI implementation of ellipsoidal-earth
    • From: Jon Blower
  • Re: [netcdf-java] [CF-metadata] ESRI implementation of ellipsoidal-earth
    • From: Rich Signell
  • Re: [netcdf-java] [CF-metadata] ESRI implementation of ellipsoidal-earth
    • From: Lauret Olivier