Information Regarding AFWEX LASE Images

AFWEX LASE IMAGES

The horizontal display interval of the full flight images depends on the length of the flight. Both nadir and zenith data may be imaged separately or together, with a black trace appearing at the aircraft altitude. Only one color scale is used for the water vapor images, and only one color scale is used for the aerosol images. Aerosol data are reported as Atmospheric Scattering Ratios on a logarithmic scale. Water Vapor data are reported as mixing ratios (g/kg) on a logarithmic scale.

Resolution of AFWEX LASE Image data are:



VERTICAL RESOLUTION:



      Vertical averaging interval
              Aerosol     60 meters
          Water Vapor      
                Nadir     330 meters
               Zenith     990 meters

      Vertical display interval for averaged data
             Aerosol      60 meters
         Water Vapor      30 meters




HORIZONTAL RESOLUTION:



      Horizontal averaging interval
          Aerosol      
            Nadir     9.0 seconds, or approximately 2.1 kilometers
           Zenith     9.0 seconds, or approximately 2.1 kilometers
      Water Vapor (except Flight 11)
            Nadir     60.0 seconds, or approximately 14 kilometers
           Zenith    300.0 seconds, or approximately 70 kilometers
           
      Note: Flight 11 Water vapor are averaged 1200 seconds, or approximately 280 kilometers

      Horizontal display interval for averaged data other than full flight images
         Aerosol       9.0 seconds or approximately 2.1 kilometers 
     Water Vapor       9.0 seconds or approximately 2.1 kilometers 


      Times on the images are Universal Time (UT).





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