Term | Definition |
Reference Map | a map that includes all possible valid relationships between a source system and a target system. |
Thematic Map | A thematic map is a type of map or chart especially designed to show a particular theme connected with a specific geographic area. |
GPS | a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. |
GIS | a system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data. |
Distance Scale | a ratio which compares a measurement on a map to the actual distance between locations identified on the map |
Directional Indicator | a compass that assists an airplane pilot in 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 the two indicators point alike t |
Inset Map | a small map or picture that is shown on or next to a larger map or picture in order to show more detail |
Legend | a list that explains the symbols on a map. |
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°. |
Prime Meridian | a planet's meridian adopted as the zero of longitude. |
Northern Hemisphere | the hemisphere that is to the north of the equator |
Southern Hemisphere | the hemisphere to the south of the equator |
Eastern Hemisphere | the hemisphere that is east of the equator |
Western Hemisphere | the hemisphere that is west of the equator. |
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 lines, or graticule, representing parallels and meridians or plane coordinates. Plane coordinate grids are almost always rectangular with uniform spacing. Azimuthal map grids are organized as polar coordinates. |