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Term | Definition |
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Reference Map | Mapping that includes all possible valid relationships between a source system and a target system. |
Thematic Map | A type of map or chart especially designed to show a particular theme connected with a specific geographic area. |
GPS | Stands for Global Positioning System, is a radio navigation system that allows land, sea,and airborne users to determine their exact location, velocity, and time 24 hours a day, in all weather conditions, anywhere in the world. |
GIS | A system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data. |
Distance Scale | A particular length or distance determined with the precision of one order (or a few orders) of magnitude. |
Directional Indicator | A compass that assists an airplane pilot flying a predetermined course by direct reading and comparison of two indicators one of which is set for the desired heading while the other shows the actual heading so that when two indicators point alike the airp |
Inset Map | More detailed (larger scale) representation of a specific area on a map usually place in an uncluttered portion of the same sheet as the smaller scale main map. |
Legened | A key to what the symbols or pictures in a map mean. |
Latitude (Parallels) | The angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. |
Longitude (Meridians) | The angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes. |
Equator | An imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0 degrees. |
Prime Meridian | A planet's meridian adopted as the zero of longitude |
Northern Hemisphere | The hemisphere north of the equator. |
Southern Himesphere | The hemisphere south of the equator. |
Eastern Hemisphere | The hemisphere east of the Prime Meridian. |
Western Hemisphere | The hemisphere west of the Prime Meridian. |
Continents | Any of the world's main continuous expanses of land (Africa, Antarctica, Asia, Australia, Europe, North America, South America). |
Map Grid | A symbolized network of line, or graticule, representing parallel and meridians or plane coordinates. |