The definitions below for the term 'geostrophic' may need to be beefed up,
since they're self-referencing..
I had to resort to google: 'A geostrophic current is an oceanic flow in
which
the pressure gradient force is balanced by the Coriolis effect. The
direction
of geostrophic flow is parallel to the isobars, with the high pressure
to the
right of the flow in the Northern Hemisphere, and the high pressure to the
left in the Southern Hemisphere.'
That may be more than we need, but I do think we should expand the
definitions. Users sometimes have to look through these without having
time to check all the terms outside the CF standard names page.
Cheers - Nan
On 9/30/16 8:54 AM, Elodie Fernandez wrote:
Dear all,
I would like to suggest the addition of two new standard_names to
describe geostrophic sea water velocities. Standard_names exist for
the surface velocities
(|surface_geostrophic_eastward_sea_water_velocity <javascript:void(0)>
and surface_geostrophic_northward_sea_water_velocity
<javascript:void(0)>), but not for the 3D ones.
Based on existing definitions, I suggest:
- *geostrophic_eastward_sea_water_velocity*
unit m s-1
"A velocity is a vector quantity. "Eastward" indicates a vector
component which is positive when directed eastward (negative
westward). "Geostrophic" indicates that geostrophic balance is assumed."
- *geostrophic_northward_sea_water_velocity*
unit m s-1
"A velocity is a vector quantity. "Northward" indicates a vector
component which is positive when directed northward (negative
southward). "Geostrophic" indicates that geostrophic balance is assumed."
|
Best regards,
Elodie
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