Assertion: vertical deflection | /r/CapableOf | describe the difference
Facets:
value: between the geoidal and ellipsoidal normals
type: OTHER
Source sentences:
text: As a vertical deflection describes the difference between the geoidal and ellipsoidal normals, it represents the horizontal gradient of the undulations of the geoid (i.e., the separation between geoid and reference ellipsoid).