A MAP BASED ALTERNATIVE FOR THE DETERMINATION OF THE LOCAL GRAVITY
Andreas Lindau
Abstract:
For the determination of the local gravity high precise mobile gravimeters are in use since more than a hundred years. As a result of the basic measurement principle the determination is carried out point-by-point with the consequence that the procedure is time consuming and expensive. Thus in many countries the results of several measurement campaigns have been collected over decades.
Whereas the measured values are available to the public only to some extent, the data were of- ten processed to gravity anomaly maps for the purpose of geological ground surveys. In this research two samples of gravity anomaly maps of Northern Germany and Italy are intro- duced with a detailed description of the rebuild of a gravity value from an anomaly map. For the single steps a theoretical budget of the uncertainty is given which has been verified by inde- pendent control points.
