Interpreting Volume Imaging Lidar Images
Return to the Index.
Return to the List of
Experiments.
The Volume Imaging Lidar (VIL)
is an elastic aerosol backscatter lidar designed to image
the four-dimensional structure of the atmosphere.
Due to huge amounts of data from each session,
only quick look images are provided here.
In monochromatic images brighter color means stronger signal,
while in rainbow colored images signal increases from purple to red.
Altitude vs. Time Images
These images show vertical profiles of backscattered signal
as a function of time.
This type of image is also called a Range Time Indicator (RTI) image.
The images are generated
by forming synthetic vertical backscatter profiles from the
VIL scans. Separate images can be formed at different horizontal
distances from the lidar.
Overhead Scans
Overhead scans show backscatter signal in a vertical plane over the lidar.
This type of image is also often called as Range Height Indicator (RHI) image.
Combination of two overhead scans
This type of image is made for overhead lidar scans which alternate
between two different azimuth angles.
The images are similar to overhead scans, except two separate
azimuth planes are shown in a single image.
Antti Piironen
