The horizontal display interval for the summary images representing the entire flight are dependent on the length of the flight. A logarithmic color scale are used for all aerosol scattering ratios and water vapor images. The color scales for the higher horizontal resolution water vapor images are logarithmic for the 0 - 20 km images and linear for the 0 - 8 km and 0 - 4 km images.
Resolution of the data are:
VERTICAL RESOLUTION:
Vertical averaging interval
Aerosol 60 meters
Water Vapor 510 meters ( 10 km)
330 meters (1 - 10 km)
150 meters
Vertical display interval for averaged data
Aerosol & Water Vapor 60 meters (0 - 20 km)
30 meters (0 - 8 km)
15 meters (0 - 4 km)
HORIZONTAL RESOLUTION:
Horizontal averaging interval
Aerosol 3.0 seconds, or approximately 600 meters
Water Vapor 180 seconds, or approximately 36 kilometers
Horizontal display interval for averaged data
Aerosol 6.0 seconds, or approximately 1200 meters
Water Vapor 6.0 seconds, or approximately 1200 meters
Times on the images are Universal Time (UT).
The GIF aerosol and ozone image dimensions are 1050 X 850 pixels in order to retain resolution. Your WWW browser/GIF viewer may handle the image in various ways. On displays of less than 1050 X 850 pixels the image may have to be scrolled or the image may get resized, losing some clarity of the fonts.
The airborne DIAL data images are to be used as a reference to the digital data located in the Langley Distributed Active Archive Center (DAAC). The images (both aerosol and ozone) viewed on this WWW page are from a full resolution data set, whereas, the digital data archived at the DAAC are a sub-sampled data set (1 profile/minute). If full resolution digital data are required, please contact the Lidar Applications Group. Images are not to be published without permission from NASA.
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