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   Aerial Photography Cameras  
Subject:  Laboratories
    Cameras are arguably the heart of aerial photography system. Without your local assistance a kite-borne camera must establish proper focus, adjust for exposure, establish a shutter speed to reduce motion blur, and advance the film.


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   Aero triangulation  
Subject: Geography
    The process of developing a network of horizontal and or vertical positions from a group of known positions using direct or indirect measurements from aerial photographs and mathematical computations.


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   Aerobic   
Subject: Resources & Reserves
    Said of organism (esp. bacteria), activities, and conditions that can exist only in the presence of free oxygen. Reference: R.L. Bates & J.A. Jackson, DICTIONARY OF GEOLOGICAL TERMS, Third Edition, American Geological Institute, 1983.
 
  
   Aerolite  
Subject: Resources & Reserves
    Stony meteorite. Reference: R.L. Bates & J.A. Jackson, DICTIONARY OF GEOLOGICAL TERMS, Third Edition, American Geological Institute, 1983.
 
 
  
   aerosol  
Subject: The Earth
    In atmospheric science, tiny suspended solid particles (dust, smoke, etc.) or liquid droplets that enter the atmosphere from either natural or human (anthropogenic) sources, such as the burning of fossil fuels. In general it is a suspension in which the dispersion medium is a gas (usually air) and the dispersed (colloidal) phase are liquid or solid particles (e.g. mist, haze, smoke).The particulate material, other than water or ice, in the atmosphere ranges in size from approximately 10-3 to larger than 102 ?m in radius. Aerosols are important in the atmosphere as nuclei for the condensation of water droplets and ice crystals, as participants in various chemical cycles, and as absorbers and scatterers of solar radiation, thereby influencing the radiation budget of the earth-atmosphere syst
 
 
  
   Aerospace  
Subject: Resources & Reserves
    A mnemonic term derived from aeronautics + space to denote both the earth's atmosphere and the space beyond as a single unit. Reference: R.L. Bates & J.A. Jackson, DICTIONARY OF GEOLOGICAL TERMS, Third Edition, American Geological Institute, 1983.
 
  
   aerovane  
Subject: The Earth
    A wind instrument that indicates or records both wind speed and wind direction.
 
 
  
   Affluent  
Subject: Geography
    a branch that flows into the main stream


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   AFOS  
Subject: The Earth
    (Meteorology) Acronym for Automation of Field Operations and Services, an electronic-computerized system that displays weather information on TV-type consoles.
 
 
  
   After-glow   
Subject: Geography
    A glow of refulgence in the western sky after sunset.


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