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Apply a VDU Patch
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 VDU Patch Software
Windows NT|95|98|2000
Sun Solaris 2.6
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Digital Nautical Chart (DNC®)
The Digital Nautical Chart® is produced by the National Geospatial-Intelligence Agency (NGA) and is an unclassified, vector-based, digital database containing maritime significant features essential for safe marine navigation. DNC homepage image
Initial data collection of the database is from a portfolio of approximately 5,000 nautical charts that will ultimately provide global marine navigation between 84° North latitude and 81° South latitude and support a variety of Geographic Information System applications.
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