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    Longitude shift on NOAA charts vs. Google Earth
    From: G Becker
    Date: 2012 Aug 14, 08:37 -0700

    Sorry if this has been covered before.. On my office wall I have an older NOAA chart (1979). I mark the Lat/Long of various sites on the chart using data from Google Earth. The marks are made in alignment with the NOAA chart scales found around the border. Comparing the two versions of Lat/Long, Google's data is always shifted approximately 1/4 Nautical mile toward Greenwich. Latitude is always accurate. If my data is not incorrect, what would be the difference in the two Lat/Long systems?
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