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Earth observation systems cover a range of scales: NOAA/AVHRR weather images are about 2,500 kilometres across (left); Landsat MSS covers 185 kilometres (centre); Air photos cover less than 10 kilometres (right).
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Earth observation systems cover a range of scales: NOAA/AVHRR weather images are about 2,500 kilometres across (left); Landsat MSS covers 185 kilometres (centre); Air photos cover less than 10 kilometres (right).
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