How is the WGS84 datum defined and realised ("on the ground")?
How well does any GPS survey relate to the WGS84 datum?
How is a classical geodetic datum defined and realised ("on the
ground")? Describe the Australian datums (horizontal and vertical).
Compare and contrast the two basic similarity transformation models
commonly used to relate GPS networks to conventional geodetic networks.
Why are similarity transformation models so popular?
What are some of the problems likely to be encountered when trying
to determine transformation parameters between a GPS network and a conventional
geodetic datum?
List some guidelines for the determination of transformation parameters.
Where should the common points be, etc.
Why do you think transformation parameters determined locally could
be significantly different to those determined on a continental scale?
Describe some of the transformation options (using published transformation
parameters) in Australia. Comment on whether the steps involve empirically
derived transformations.
Describe the nature of the GPS heights derived from a GPS survey?
How are they related to orthometric heights?
Discuss the role played by geoid height information for GPS result
transformation.
Compare and contrast the various geoid height determination techniques.
How does GPS heighting accuracy relate to conventional notions of
levelling accuracy? Does GPS have a future as a levelling technology?
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