- late 20th century. The
geoid is
often expressed as a
geoid undulation or
geoidal height above a
given reference ellipsoid,
which is a
slightly flattened...
- levelling: as a
vertical deflection describes the
difference between the
geoidal and
ellipsoidal normal direction, it
represents the
horizontal spatial...
-
plates will be
moved towards a
geoidal low
perhaps where the slab
avalanche occurred and
pushed away from the
geoidal high that can be
caused by the plumes...
- rotation. As a
result of the
uneven distribution of the Earth's m****, the
geoidal surface is
irregular and,
since the
ellipsoid is a
regular surface, the...
- a
geoidal model would change the
characterization of
important properties such as distance,
conformality and equivalence. Therefore, in
geoidal projections...
-
geometrical separation between it and the
reference ellipsoid is
called the
geoidal undulation, or more
usually the geoid-ellipsoid separation, N. It varies...
-
between the
polar radius and
equatorial radius because they
include local or
geoidal topography or
because they
depend on
abstract geometrical considerations...
-
geometrical separation between the
geoid and a
reference ellipsoid is
called geoidal undulation, and it
varies globally between ±110 m
based on the GRS 80 ellipsoid...
- 1866, with
origin at (the
survey station)
Meades Ranch (Kansas)." ... The
geoidal height at
Meades Ranch was ****umed to be zero, as
sufficient gravity data...
-
heights (ellipsoid) and
orthometric heights (geoid) are
performed from a
geoidal model. The sea
surface height is then the
difference between the satellite's...
