Reference Gravity Stations
Database
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. An interactive map, as well as CSV and Shapefiles datasets, are available via E Tūhura – Explore Zealandia.
Overview
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.
Download KMZ file for viewing in Google Earth or other suitable software(external link)
CSV or Shapefile data are available via via E Tūhura - Explore Zealandia. Once you have selected "gravity" from the menu, you will see Reference Gravity Stations as an item. There is a pull-down menu between the tick box and the “Reference Gravity Stations" title that will allow you to export CSV or Shapefile data.
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GNS Science retains title to all intellectual property rights in the Products, including copyright. You will not remove or cover any proprietary notices placed on Products by GNS Science.
GNS Science grants you, a personal, non-exclusive, non-assignable, non-transferable licence to access and use the Products and to download those Products that are available for downloading. Read the full terms and conditions here(external link).
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Locations
- Te Tai-o-Aorere / Tasman
- Rangitāhua / Kermadec Islands
- Rēkohu / Chatham Islands
- Rakiura / Stewart Island
- Murihiku / Southland
- Ōtepoti / Dunedin
- Ōtākou / Otago
- Ōtautahi / Christchurch
- Waitaha / Canterbury
- Kaikōura
- Te Tai Poutini / West Coast
- Te Tauihu-o-te-waka/ Marlborough
- Whakatū / Nelson
- Pacific Islands
- Te Whanga-nui-a-Tara / Wellington
- Manawatū-Whanganui
- Central Plateau
- Taranaki
- Te Matau-a-Māui / Hawke's Bay
- Te Tai Rāwhiti / Gisborne
- Te Moana-a-Toi / Bay of Plenty
- Waikato
- Tāmaki Makaurau / Auckland
- Te Tai Tokerau / Northland
- Aotearoa / New Zealand