A catalogue of over 40,000 gravity survey observations in New Zealand, including free air, Bouguer and isostatic gravity anomalies has been assembled. These data have been assembled from survey measurements mostly made by Geophysics Division, Department of Scientific and Industrial Research, (now GNS Science) since the 1940s using a variety of meters. Some gravity data has been contributed by petroleum explorers and universities. In 2004 all data were uniformly reprocessed using GNS Science software and tied to primary gravity sites the New Zealand Reference Gravity Stations (https://doi.org/10.21420/96Q5-8581). This database is http://dx.doi.org/10.21420/DRDW-VC72.

A gravity map of the New Zealand region has been created from onshore observations and satellite altimetry. Onshore gravity is Bouguer Gravity Anomaly from the GNS database (http://dx.doi.org/10.21420/DRDW-VC72). Data were processed as described in the Terrestrial gravity section of McCubbine et al. (2017). Offshore gravity (and onshore outside of mainland NZ) is Free Air Gravity Anomaly Sandwell and Smith 1 minute land and ocean gravity grid v29 (2020).

A gravity map of the New Zealand region has been created from onshore observations and satellite altimetry. Onshore gravity is free-air Gravity Anomaly from the GNS database (http://dx.doi.org/10.21420/DRDW-VC72). Data were processed as described in the Terrestrial gravity section of McCubbine et al. (2017). Offshore gravity (and onshore outside of mainland NZ) is Free Air Gravity Anomaly Sandwell and Smith 1 minute land and ocean gravity grid v29 (2020).