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15 Cards in this Set

  • Front
  • Back
Aerial photograph
a picture taken from an elevated platform, such as a balloon, airplane, rocket or satellite (earliest in France in 1858 from balloon)
Central Meridian
are meridians that pass through the center of each major landmass and serve as a baseline from which continent can be mapped
Color Infrared (Color IR)
a development of WWII - this film is sensitive to radiation in the infrared region of the spectrum; can discriminate living vegetation from withering vegetation used to hide objects during war; blue is filtered out
Conformal Projection
proper angular relationships are maintained so that the shape of something on the map is the same as its shape on Earth
Contour Line
a line that joins points of equal elevation
Equivalent Projection
the size ratio of any area on the map to the corresponding area on the ground is the same all over the map (size is accurate)
Fractional Scale
compares map distance with ground distance by proportional numbers expressed as a fraction or ratio called a representative fraction
Geographic Information System (GIS)
automated systems for the capture, storage, retrieval, analysis and display of spatial data; map layers can be used to compare different things such as geology or slopes, soils or locations of rivers, etc.
Global Positioning System (GPS)
a satellite-based system for determining accurate positions on or near Earth's surface, developed in '70s and '80s for guiding missiles, navigating aircraft and controlling ground troops - 24 satellites so that four are in view of any area at any given time
Graphic Scale
uses a line marked off in graduated distances
the numerical difference between one isoline and the next
a line joining points of equal atmospheric pressure
Isogonic Line
a line that joins points of equal magnetic declination
a line that joins points of equal quantities of precipitation
a generic term that refers to any line that joins points of equal value of something