연구/X3D-Earth
DNC: Digital Nautical Chart
fermi
2007. 6. 1. 07:48
http://www.nga.mil/portal/site/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.
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.
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.
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.