Term | Definition |
reference map | map 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 | Global Positioning System |
GIS | Geographic Information System |
distance scale | a type of map or chart especially designed to show a particular theme connected with a specific geographic area |
directional indicator | a compass that assists an airplane pilot in flying a predetermined course by direct reading and comparison of two indicators |
inset map | More detailed (larger scale) representation of a specific area on a map usually placed in an uncluttered portion of the same sheet as the smaller scale main map |
legend | An explanatory table or list of the symbols appearing on a map or chart |
latitude (parallels) | the angular distance of a place north or south of the earth's equator |
longitude (meridians) | the angular distance of a place east or west of the meridian |
Equator | an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres |
Prime Meridian | The zero meridian (0°), used as a reference line from which longitude east and west is measured |
northern hemisphere | the hemisphere that is to the north of the equator |
southern hemisphere | the hemisphere that is to the south of the equator |
eastern hemisphere | the half of the Earth that is east of the Prime Meridian |
western hemisphere | the half of the Earth that is west of the Prime Meridian |
continents | One of the principal land masses of the earth, usually regarded as including Africa, Antarctica, Asia, Australia, Europe, North America, and South America |
map grid | A symbolized network of lines, or graticule, representing parallels and meridians or plane coordinates |