A catalogue of reference gravity stations in New Zealand has been assembled from measurements made since the 1950s using mostly Lacoste and Romberg D- and G-model meters. These data are from the New Zealand Primary Gravity Network and GNS Science gravity stations for measuring secular changes in gravity. In 2004 the observation data were uniformly processed using GNS Science software and tied to gravity base stations in Auckland and Dunedin. The 2004 revised gravity values currently provide the best spatial coverage of reference gravity for New Zealand. Regular updates of the database are available in kml file format including absolute gravity observations, and links to site diagrams and the LINZ benchmark maintenance pages. These stations can be used to tie any gravity survey using a differential gravity meter. This dataset is https://doi.org/10.21420/96Q5-8581.

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.

PEGI (Petroleum Exploration Geoscience Initiative) well and outcrop point locations

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).

Transmission and distribution pipelines. There are more than 3,500 km of high pressure gas transmission pipelines in New Zealand, that radiate from Taranaki to Wellington in the south and north to Huntly, Auckland and Whangarei. A further 2,800 km of intermediate, medium and low pressure gas distribution pipeline networks in North Island are connected to the high pressure transmission systems and branch to Gisborne and Hastings. The largest pipeline, to Huntly, supplies the E3P 385 MW and 50 MW gas turbine. The Motonui Methanex plant near New Plymouth is also a major user of gas.

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).

Downstream infrastructure Maui offshore platforms; Tui and Maari FPSOs; Pohokura, Maari and Kupe unmanned platforms. Eight onshore production stations in Taranaki. North Island gas pipeline network, including pipelines to Gisborne and Hastings. Oil refinery and port at Marsden Point, Whangarei, with connections to the North Island gas pipeline network and a liquids pipeline to Auckland.

Updated DSDP, ODP and IODP borehole locations, related metadata and links back to host site data repositories. Generated from kml files available at http://www.iodp.org/borehole-map