Search results
Results From The WOW.Com Content Network
A nautical chart or hydrographic chart is a graphic representation of a sea region or water body and adjacent coasts or banks. Depending on the scale of the chart, it may show depths of water ( bathymetry) and heights of land ( topography ), natural features of the seabed, details of the coastline, navigational hazards, locations of natural and ...
An electronic navigational chart ( ENC) is an official database created by a national hydrographic office for use with an Electronic Chart Display and Information System ( ECDIS ). [ 1] ECDIS and ENCs are the primary means of electronic navigation on cargo ships. [ 1] Charts can be used in navigation to provide an indication of location once a ...
metar kttn 051853z 04011kt 1/2sm vcts sn fzfg bkn003 ovc010 m02/m02 a3006 rmk ao2 tsb40 slp176 p0002 t10171017= [10] METAR indicates that the following is a standard hourly observation. KTTN is the ICAO identifier for the Trenton-Mercer Airport .
Astronaut Device [ 1] A United States Aviator Badge refers to three types of aviation badges issued by the United States Armed Forces, those being for Air Force, Army, and Naval (to include Marine and Coast Guard) aviation. Air Force Pilot and Army Aviator Badges are issued in three ratings: Basic, Senior, and Command (Air Force)/Master (Army).
U.S. National Geodetic Survey. The National Geodetic Survey ( NGS) is a United States federal agency based in Washington, D.C. that defines and manages a national coordinate system, providing the foundation for transportation and communication, mapping and charting, and a large number of science and engineering applications.
A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [ 1] Common chart datums are lowest astronomical tide (LAT) [ 1] and mean lower low water (MLLW).
Raster Navigational Charts ( RNC's) are created by the National Oceanic and Atmospheric Administration (NOAA) of the United States Government. Each original chart is scanned at high resolution with color separate overlays. The raster file also contains data that is Geo-referencing; enabling computer based navigation attached to a GPS to locate ...
Beaufort scale. A ship in a force 12 (" hurricane -force") storm at sea, the highest rated on the Beaufort scale. The Beaufort scale / ˈboʊfərt / is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale .