Stagpoole, V.M.; Caratori Tontini, F. 2014 Absolute gravity survey marks in the northwestern and southern South Island established in 2014. Lower Hutt, NZ: GNS Science. GNS Science miscellaneous series 73 58 p.
Abstract: In 2014, 47 absolute gravity survey marks were established in the northwestern and southern South Island as part of a project to update the New Zealand Primary Gravity Network. The gravity surveys were tied to existing survey marks that are part of the gravity benchmark network. In addition to establishing new marks, observations made at 8 existing Primary Gravity Network stations showed the difference between the 2014 gravity and the historical measurements is up to about 120 µGal. All observations were made with the GNS Science Lacoste and Romberg G-106 and D-37 gravity meters, and reduced with GNS Science in-house gravity reduction programs. Gravity values listed are tide corrected absolute gravity, relative to the New Zealand Potsdam 1959 system. (auth)