Abstract:
The combination of a rich geomorphology which includes lowlands as well as high mountains and the high quality of the available source data proves Austria to be an excellent test area for geoid computations. A dense field of gravity anomalies and deflections of the vertical together with a high-resolution height model are the ideal base to study different algorithms and methods for geoid computation. The following case study, within the project of the recomputation of the Austrian GEOID2000, investigates the combination of different data-sources for a high-resolution geoid for areas with rough topography. The computations are performed using Least Squares Collocation (LSC) and the remove-restore technique.