BackForward Variable: Geoid

Definition
Full name Geoid
Definition Equipotential surface which would coincide exactly with the mean ocean surface of the Earth, if the oceans were in equilibrium, at rest, and extended through the continents (such as with very narrow channels) - Physical unit: [ cm ] - Accuracy unit: [ cm ].
Measuring Units cm Uncertainty Units cm
Horizontal Res Units km Vertical Res Units
Stability Units cm (Stability /decade)

 

Comment:
Last modified: 2012-07-20
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Terrestrial
    • Sub-domain: Solid Earth and magnetic field
      • Variable: Geoid
        • Measured in Layers:
          • Land surface
  • Cross-cutting themes:

Requirements defined for Geoid  (2)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green and threshold orange

Id Variable Layer App Area Uncertainty Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source
567 Geoid Land surface SIAF (deprecated) 1 cm
2 cm
5 cm 		100 km
200 km
500 km 		10 y
15 y
30 y 		10 y
15 y
20 y 		Global land firm 2009-01-19 Laura Ferranti
752 Geoid SSLP 1 cm
2 cm
5 cm 		100 km
200 km
500 km 		10 y
15 y
30 y 		10 y
15 y
20 y 		Global land firm 2009-01-19 Laura Ferranti