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26 Cards in this Set
- Front
- Back
relief
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difference in elevation between the highest and lowest point on mapped area
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Topography
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a shape of a land
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elevation
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distance above/below sea level
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index contour
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bolder, darker lines on a map (labeled every 5th line)
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contour interval
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2mt. Of elev change from one contour line to the next
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North and South geographic poles
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reference points that are intersected by the earth's axis of rotation
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parallels
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circles that run east and west around the world parallel to the equator
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latitude
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the angular distance north or south of the 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. It is at 0 degrees.
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great circle
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any circle that divides the globe into halves
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geomagnetic poles
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the points on earth's surface just above the poles of the imaginary magnet inside earth
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magnet declination
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the angle between the direction of the geographic pole and the direction in which the compass needle points
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true north
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the direction of the geographic North Pole
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cartography
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the 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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a flat map that represent the three-dimensional curved surface of a globe
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Mercator projection
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best at the equator- distorts the poles
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Gnomic projection
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globe looking figure that projects the great circles as straight lines
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Conic projection
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shows accurately: areas near the parallel of latitude where the cone touches are fairly accurate areas far from the line of contact are distorted
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polyconic projections
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a series of conic projections that may be used to map a number of neighboring areas
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explanation
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a legend on the map
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scale
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indicates the relationship between distance as shown on the map and actual distance
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elevation
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height above sea level
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mean sea level
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the point midway between the highest and lowest tide levels of the ocean
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depression contours
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contour lines that form closed loops that indicate a hilltop or a depression.
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