Absolute gravity, tide gauge calibrations and historic hut surveys.
Gravity has been measured since 1957, which contributes to monitoring of global change by providing a benchmark for measuring movement of the Earth. LINZ has maintained tide gauges at Scott Base and Cape Roberts since 2001 to provide scientists with consistent, continuous and authoritative data for monitoring sea level in this part of the world. The combined measurements of gravity and sea level assist with monitoring global change, specifically sea level rise. LINZ also work with Antarctica New Zealand to monitor infrastructure such as Scott Base and the Crater Hill wind farm.