Connections to Antarctic Tide Gauge Benchmarks

These tide gauges form part of the Sea Level Pilot Project for the Southern Ocean, (SLPP-SO). Further information on this project is available from the Bureau of Meteorology National Tidal Centre / Oceanographic Services.

At each site there is a tide gauge bench mark to which the tide gauge measurement of sea level is related. This bench mark is connected to other nearby marks to monitor any possible vertical movement. In addition, the tide gauge bench mark is connected to a nearby 'Continuously Operating GPS Reference Station', to link the measurement of sea level with the ellipsoidal height accurately measured by GPS.

• Mawson [PDF_115k]
• Casey [PDF_103k]
• Davis [PDF_116k]
• Macquarie Island [PDF_112k]