Record Label : surface_height_above_geopotential_datum
Record Title : Surface Height Above Geopotential Datum
CF Standard Name : surface_height_above_geopotential_datum
Record Description : "Height_above_X" means the vertical distance above the named surface X. The surface called "surface" means the lower boundary of the atmosphere. The "geopotential datum" is any estimated surface of constant geopotential used as a datum i.e. a reference level; for the geoid as a datum, specific standard names are available. 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.
Canonical Units : m