The height datum/geodetic datum problem

Details The height datum/geodetic datum problem The height datum/geodetic datum problem

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002geoji.149..768s&link_type=abstract

Geophysical Journal International, Volume 149, Issue 3, pp. 768-775.

Physics

2

Geoid, Gravity, Gravity Anomalies, Reference Frames, Satellite Geodesy

Scientific paper

The height datum problem is present in the geodetic literature since the times of Pizzetti, when it was realized that as only differences of the gravity potential can be derived from measurements, there was still one global parameter to be settled in order to determine a global model.
Several more realistic formulations of the problem have been introduced into the geodetic literature. After reviewing them, an ultimate formulation is attempted where only local data are given stemming from levelling, gravimetry, classical geodetic network observations, combined with global GPS-like observations. The problem of contemporaneous height datum/geodetic datum determination is shown to be solvable, in ellipsoidal approximation, only if the classical tide gauge and network orientation information is taken into account, specially if the local datum does not refer to very large areas, e.g. of continental size.
In fact we will show that when this classical information is missing for the datum problem referring to a fairly small area, it becomes, for instance, impossible to distinguish between a 'vertical' shift of the local ellipsoid and a change of the potential of the geoid, i.e. the choice of a slightly different gravity equipotential surface.

Affiliated with

Also associated with

No associations

Rating

The height datum/geodetic datum problem does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The height datum/geodetic datum problem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The height datum/geodetic datum problem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1212082