depth_below_geoid

complete
Created: July 5, 2017
Proposer: Jonathan Gregory / Alison Pamment
Proposed Date: 2017-07-04
CF trac ticket 143 has been agreed.
Change Date: July 5, 2017, 7:11 p.m.
Term: depth_below_geoid
Unit: m
Unit ref: http://vocab.ndg.nerc.ac.uk/term/P061/37/ULAA
AMIP:
GRIB:
The geoid is a surface of constant geopotential with which mean sea level would coincide if the ocean were at rest. (The volume enclosed between the geoid and the sea floor equals the mean volume of water in the ocean.) In an ocean GCM the geoid is the surface of zero depth, or the rigid lid if the model uses that approximation. "Depth_below_X" means the vertical distance below the named surface X.
Change Date: July 5, 2017, 7:14 p.m.
Term: depth_below_geoid
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
The geoid is a surface of constant geopotential with which mean sea level would coincide if the ocean were at rest. (The volume enclosed between the geoid and the sea floor equals the mean volume of water in the ocean.) In an ocean GCM the geoid is the surface of zero depth, or the rigid lid if the model uses that approximation. "Depth_below_X" means the vertical distance below the named surface X.
Change Date: July 5, 2017, 7:16 p.m.
Term: depth_below_geoid
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
The geoid is a surface of constant geopotential with which mean sea level would coincide if the ocean were at rest. (The volume enclosed between the geoid and the sea floor equals the mean volume of water in the ocean). In an ocean GCM the geoid is the surface of zero depth, or the rigid lid if the model uses that approximation. To specify which geoid or geopotential datum is being used as a reference level, a grid_mapping variable should be attached to the data variable as described in Chapter 5.6 of the CF Convention. "Depth_below_X" means the vertical distance below the named surface X.