hydrographic chart
81MAP — See modified American plan. * * * I Graphic representation, drawn to scale and usually on a flat surface, of features usually geographic, geologic, or geopolitical of an area of the Earth or of any celestial body. Globes are maps represented on… …
82CARIS — Infobox Company company name = CARIS company founded = 1979 location = Fredericton, New Brunswick products = Geospatial Software Solutions homepage = www.caris.com [http://www.caris.com] CARIS (Computer Aided Resource Information System) is a… …
83List of Russian explorers — The Russian Empire at its peak in 1866, including the spheres of influence; this territorial expansion largely corresponds to the extent of contiguous exploration by Russians. This is a list of explorers from the Russian Federation, Soviet Union …
84Hydrography — focuses on the measurement of physical characteristics of waters and marginal land. In the generalized usage , hydrography pertains to measurement and description of any waters. With that usage oceanography and limnology are subsets of… …
85Nautical mile — 1 nautical mile = SI units 1.85200 km 1,852.00 m US customary / Imperial units 1.15078 mi 6,076.12 ft The nautical mile (symbol M, NM or nmi) is a unit of length that is about one minute of arc of latitude along a …
86Notice to mariners — The front cover of a Notice to Mariners. Purpose: Provide corrections to navigational publications and nautical charts. Publication Frequency: Weekly Published by: National Geospatial Intelligence Agency Available Online: Yes …
87National Geospatial-Intelligence Agency — Know the Earth, Show the Way. NGA seal …
88Operation Sandblast — Part of Cold War (1953–1962) …
89Fathom — unit of length m= 1.8288000 accuracy=5 A fathom is a unit of length in the Imperial system (and the derived U.S. customary units), used especially for measuring the depth of water. There are 2 yards (6 feet) in a fathom. Encyclopædia Britannica… …
90S-63 — is an International Hydrographic Organization (IHO) standard for encrypting and securing electronic navigational chart (ENC) data.The Data Protection Scheme was prepared by the IHO Data Protection Scheme Advisory Group, and was based on the… …
