Search results
Results from the WOW.Com Content Network
Land navigation is the discipline of following a route through unfamiliar terrain on foot or by vehicle, using maps with reference to terrain, a compass, and other navigational tools. [1] It is distinguished from travel by traditional groups, such as the Tuareg [ 2 ] across the Sahara and the Inuit [ 3 ] across the Arctic , who use subtle cues ...
Position resection and intersection are methods for determining an unknown geographic position (position finding) by measuring angles with respect to known positions.In resection, the one point with unknown coordinates is occupied and sightings are taken to the known points; in intersection, the two points with known coordinates are occupied and sightings are taken to the unknown point.
This allows access to the map such that the location could be marked with a pencil if using the reference card in reverse having been given a grid reference to start with. They are used in many types of land navigation and map reading, to give a more accurate grid reference than one just estimated by eye from the grid lines on the map.
In a contemporary land navigation context, true, magnetic, and grid bearings are always measured in this way, with true north, magnetic north, or grid north being 0° in a 360-degree system. [5] In aircraft navigation, an angle is normally measured from the aircraft's track or heading, in a clockwise direction.
Topography and symbols for water, trees, private vs. public land etc. are all important semiotic markers for reading maps, orienteering, and finding one's way around the wilderness. Map symbols need to be simple, understandable, and meet professional cartography standards.
Depending on whether one is navigating on a water course, in the air or on land, a different chart applies for the navigator: Nautical charts – show coastal regions and depict depths of water and land features, natural features of the seabed, details of the coastline, navigational hazards, locations of natural and human-made aids to navigation, and human-made structures such as harbours ...
5 things I care about Philly's D-line beats up on L.A. One of the matchups I was most keen to watch in Week 12 was the Eagles defense against the Rams offense.
A bearing is the angle between the line joining the two points of interest and the line from one of the points to the north, such as a ship's course or a compass reading to a landmark. On nautical charts, the top of the chart is always true north, rather than magnetic north, towards which a compass points.