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GPS data shows that the UK is drifting in a north-easterly direction

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This receiver at the University of Nottingham is one of 57 fixed stations in Britain

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The receiver sits safely atop the turret at the IESSG building

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Dr David Baker and Dr Richard Bingley inspect the �20,000 receiver

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A stream of GPS co-ordinates flow into the IESSG every day

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Research associate Norman Teferle works with the GPS data as it comes in from across the nation

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A major use of the data is determining the global rise in sea levels