Positioning Australia provides nationally coordinated positioning and height services that link terrestrial, coastal, and marine observations, enabling coherent marine science from land to sea. PA integrates horizontal and vertical datums, space geodesy, geophysical and geospatial models, and reference frames to deliver precise positioning to Australian industries, researchers, and communities.
This presentation introduces selected PA services that support AMSA stakeholders in translating marine science into policy‑relevant outcomes. Our open‑source real‑time positioning software, Ginan, enables centimetre‑level GNSS positioning for reef and coastal science, improving detection of subtle change over time and supporting routine marine field observations through continuous positioning of uncrewed platforms. The SouthPAN program provides reliable, nationally consistent positioning for ports and coastal authorities; for example, the Port Phillip Sea Pilots use precise point positioning to improve port safety and operational efficiency. Enhanced positioning and geophysical modelling also support robust interpretation of subtle sea‑level and climate signals, including through the Northern Territory height survey using the Australian Vertical Working Surface (AVWS). Regional impact is further demonstrated through Pacific COSPAC, where GNSS and levelling at tide‑gauge locations support long‑term climate and sea‑level observations.
This presentation demonstrates how nationally coordinated positioning underpins scalable, interoperable marine science from the coast to the open ocean.