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ABAEL lidar system.
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Airborne Aerosol Lidar (ABAEL)
ABAEL is designed to detect aerosol layers in the atmosphere
from an aircraft. It is deployed for air quality missions
to locate aerosol layers for in-situ sampling and for mapping
the regional distribution of aerosols.
Specs
| Wavelength |
355 nm, 15 mJ/pulse |
| Rep rate |
20 Hz |
| 2 Channel System |
| Near Channel |
2" diameter 3 mRad field-of-view bi-axial
configuration, designed to see from 120 m to 1 km |
| Far Channel |
10" diameter 1 mRad field of-of-view co-axial
configuration, designed to see from 600 m to 8 km |
| Detectors |
PMTs with 1 nm FWHM filters at 355 nm |
- Data system is based on a dual channel 12 bit GAGE digitizer with 30
Msample/sec rate.
- Software to blend near field data with far field data has been developed,
creating a seamless display of aerosol backscatter from 120 m to 8 km.
- The lidar is designed to upgrade to 1.5 microns eventually using the
same optics.
- Operating mode in the P-3 aircraft during ITCT 2k2 is upward looking or downward looking using a 2
position turning mirror on a fairing attached to the side of the
aircraft behind the wing.
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