Dear all,
I would like to propose you some new standard names for satellite altimetry
data.
I saw that there are already some entry names that seems to fit satellite
altimetry: sea_surface_height_above_geoid and
sea_surface_height_above_sea_level.
But in my knowledge there are no names for:
- sea surface height above reference ellipsoid
- geostrophic currents that are derived from sea surface heights.
In the first case I could quite naturally propose you the term
"sea_surface_height_above_reference_ellipsoid".
In the second case, well, it could be a little bit more complicated..
For the time being the eastward and northward surface velocity components
available in the standard name table are:
surface_eastward_sea_water_velocity
surface_northward_sea_water_velocity
Maybe we could add:
surface_eastward_sea_water_geostrophic_velocity_above_sea_level
surface_northward_sea_water_geostrophic_velocity_above_sea_level
to identify velocity components derived from
"sea_surface_height_above_sea_level" parameter assuming geostrophic
balance, and
surface_eastward_sea_water_geostrophic_velocity_above_geoid
surface_northward_sea_water_geostrophic_velocity_above_geoid
to identify geostrophic velocity components derived from
"sea_surface_height_above_geoid" parameter.
It seems to be the only way to distinguish between two different
geostrophic currents (in terms of physics). But the problem is that it
doesn't make any sense to have a "velocity above something". So something like
surface_eastward_sea_water_geostrophic_velocity_due_to_sea_surface_height_above_sea_level
surface_northward_sea_water_geostrophic_velocity_due_to_sea_surface_height_above_sea_level
surface_eastward_sea_water_geostrophic_velocity_due_to_sea_surface_height_above_geoid
surface_northward_sea_water_geostrophic_velocity_due_to_sea_surface_height_above_geoid
would be more appropriate, wouldn't it? It's a little bit longer, but in my
opinion necessary, to distinguish the different kinds of surface currents.
Regards
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 Fri Aug 18 2006 - 04:02:45 BST
