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Vocabulary words
Question | Answer |
---|---|
reference map | reference map shows the location of the geographic areas for which census data are tabulated and disseminated. |
thematic map | A thematic map is a type of map especially designed to show a particular theme connected with a specific geographic area. |
GPS | 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 | is a computerized data management system used to capture, store, manage, retrieve, analyze, and display spatial information. |
Distance scale | The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground. |
directional indicator | Directional Indicator - +DI' A component of the average directional index that is used to measure the presence of an uptrend. |
insert map | A map inside another map |
legend | the wording on a map or diagram explaining the symbols used. |
latitude (parallels) | The circles parallel to the equator are lines of constant latitude, or parallels. |
longitude (meridians) | The meridian through Greenwich, England, also called the Prime Meridian, was set at zero degrees of longitude, while other meridians were defined by the angle at the center of the earth between where it and the prime meridian cross the equator. |
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 | the earth's zero of longitude, which by convention passes through Greenwich, England. |
northern hemisphere | The Northern Hemisphere of Earth is the half that is north of the equator. |
southern hemisphere | The Southern Hemisphere of Earth is the half which is south of the equator. |
eastern hemisphere | The Eastern Hemisphere is a geographical term for the half of the Earth that is east of the Prime Meridian and west of 180° longitude. |
western hemisphere | The Western Hemisphere is a geographical term for the half of the Earth that lies west of the Prime Meridian and east of the Antimeridian, the other half being called the Eastern Hemisphere. |
continents | any of the world's main continuous expanses of land (Africa, Antarctica, Asia, Australia, Europe, North America, South America). |
map grid | Grid lines on maps define the coordinate system, and are numbered to provide a unique reference to features. |