AROTAL

Airborne Raman Ozone, Temperature, and Aerosol Lidar

This is a stratospheric lidar which is configured to fly on the NASA DC-8. It is a zenith viewing instrument, which makes vertical profile measurements of ozone, aerosols and temperature. Stratospheric ozone can be measured at solar zenith angles greater than ~30 degrees, while temperature and aerosols require SZA > 90 degrees. The SNR is maximized under dark coonditions. The measurement of Near-field water vapor measurements is being investigated and could be readily implemented. The instrument utilizes a XeCl excimer laser and a Nd-YAG laser to make DIAL, Raman DIAL, and backscatter measurements. A zenith viewing 16" telescope receives the lidar returns.

Instrument Type
Lidar,
Raman spectrometer
Measurements
Temperature,
[tid:114],
O3,
Aerosol Backscattering,
Aerosol Extinction,
Aerosol Depolarization Ratio
Aircraft
DC-8 - AFRC
Point(s) of Contact
Thomas J. McGee
(PI)
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