Before revision: The Earth2014 global grids are provided as heights relative to the EGM96 mean sea level for the relief model, and as planetary radii relative to the centre of Earth to show the shape of the Earth.
After revision: conventionalThe Earth2014 global grids are provided as heights relative to the EGM96 mean sea level for the relief model, and as planetary radii relative to the centre of Earth to show the shape of the Earth.