Australia ‘relocates’ to fix sat-nav gap

Australia is to shift its longitude and latitude to address a gap between local co-ordinates and those from global navigation satellite systems (GNSS).

Local co-ordinates, used to produce maps and measurements, and global ones differ by more than 1m. The body responsible for the change said it would help the development of self-driving cars, which need accurate location data to navigate.

Australia moves about 7cm north annually because of tectonic movements. Modern satellite systems provide location data based on global lines of longitude and latitude, which do not move even if the continents on Earth shift. However, many countries produce maps and measurements with the lines of longitude and latitude fixed to their local continent. Source: BBC News

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