Dear all,
There is something that remains vague to me about the vector components:
you have the possibility to use "northward/eastward"component instead of
"x/y" component. I thought in the beginning that talking about the "x
component" of a vector occurs only in situation like curvilinear
coordinates, but the CF table seems to recomand to refer to x (or y)
component when "x" (or y) is not true longitude (latitude).
Because the components within my netCDF file are on a grid that is changing
with latitude, I suppose that using "northward/eastward" terms to describe
my geostrophic velocity fields is erroneous. In that case I would need to
complete the geostrophic velocity names already available in the table by
adding some new standard names:
In CF table:
>surface_eastward_geostrophic_sea_water_velocity (m s-1)
>surface_northward_geostrophic_sea_water_velocity (m s-1)
>surface_eastward_geostrophic_sea_water_velocity_assuming_sea_level_for_geoid
>(m s-1)
>surface_northward_geostrophic_sea_water_velocity_assuming_sea_level_for_geoid
>(m s-1)
new ones would be respectively:
>surface_x_geostrophic_sea_water_velocity (m s-1)
>surface_y_geostrophic_sea_water_velocity (m s-1)
>surface_x_geostrophic_sea_water_velocity_assuming_sea_level_for_geoid (m s-1)
>surface_y_geostrophic_sea_water_velocity_assuming_sea_level_for_geoid (m s-1)
What is the opinion of the CF community about that?
Thank you.
Olivier.
Olivier Lauret
CLS Space Oceanography Division
Data Information and Diffusion
8-10 rue Hermes,
31526 Ramonville-St-Agne, Cedex, France
Email: olivier.lauret at cls.fr
Tel: (+33) (0) 561 39 48 51
Fax:(+33) (0) 561 39 48 51
Internet:
http://www.cls.fr
http://www.aviso.oceanobs.com/
Received on Mon Jun 25 2007 - 06:22:02 BST
