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32 Cards in this Set
- Front
- Back
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North and South Geographic Poles
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points on the surface of the earth that are interested that are intersected by the earth's axis of rotation are used as reference points for establishing direction
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equator
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halfway between the poles; divides earth into Northern and Southern Points
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parallels
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lines that run east an west around the world parallel to the equator;describes positions north and south of the equator
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latitude
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angular distance north and south of the equator; begins at equator
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Meridians
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used to establish east-west locations
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prime meridian
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passes through Greenwich, England; meridian at 0 degrees
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Longitude
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angular distance, measured in degrees, east or west of prime meridian
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180 degrees
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halfway around the world
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great circle
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any circle that divides the earth into halves
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geomagnetic poles
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points on the earth's surface just above the poles of the imaginary magnet
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magnetic declination
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angle between the direction of the geographic of the geographic poles an the direction in which the compass needle points
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true north
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direction of the geographic North Pole
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cartography
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science of map making
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cartographers
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map makers
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map projection
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flat map that presents the three-dimensional curved surface of a globe
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3 common types of map projections
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Mercator, gnomonic, conic
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Mercator
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show accurate equator projection
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Gnomonic
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show accurate pole projection
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Conic
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cone shaped; shows parallel of longitude
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polyconic projections
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fitting the adjoining areas together then produces a continuous map
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legend/explanation
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list a symbols and their meanings
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scale
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indicates relationship between distance as shown on the map and the actual distance
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topographic map
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show surface features of earth
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topography
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aka topographic map
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elevation
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height above the sea level
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mean sea level
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point midway between the highest and lowest tide levels of the ocean
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contour lines
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used to show elevation
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contour interval
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difference in elevation between one contour line and the next
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relief
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difference in elevation between the highest and lowest points of the area being mapped
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detailed maps
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topographic sheets or quadrangles
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index contour
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every fifth contour line is printed bolder than other; labeled by elevation
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depression contours
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marked with short, straight lines; drawn inside along the inside of the loop and point toward its center, indicating the direction of depression
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