Assessing New Airborne Gravimetry Collected over New Zealand

Land Information New Zealand, in conjunction with GNS Science and Victoria University, has recently completed a ten month airborne gravimetry campaign across New Zealand. The survey has provided, for the first time, consistent regular coverage across the shallow coastal areas and rough topographic regions that have previously been extremely difficult to survey. This data will be used to update the gravimetric geoid model that forms the basis of New Zealand’s official vertical datum. In this contribution we present the results of the survey campaign and evaluate the accuracy of the data collected over 2013/14.