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Airborne Ozone UV-DIAL
Applications
- Airborne mapping of lower tropospheric ozone and aerosol distributions
- Air pollutant plume and air mass dispersion studies
- Ozone nonattainment studies
Basic Parameters Measured:
- Ozone concentration profiles
- Aerosol backscatter
Typical Specifications
| Wavelengths
| 277, 292, 313, 319, 360 nm |
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| Pulse energy
| 5 - 15 mJ / wavelength |
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| Pulse rate | 20 Hz |
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| Scan |
Fixed down-looking from an
airborne platform |
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| Resolution |
Ozone |
Aerosol Backscatter |
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| 90 m | 15 m |
| Minimum range | 0.7 km |
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| Maximum range | 3.5 km | |
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| Accuracy |
Less than 10 ppbv typical |
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| Other |
- Platform: Casa 212 cargo aircraft
- Laser Type: Krypton Fluoride with Raman shifting
in H2 and D2
- Receiver: 50 cm diameter Newtonian telescope
(down-looking)
- Detectors: Hamamatsu R2055 and R2076 PMT's, gated
- A-to-D converters: DSP 12-bit 5 MS/s (ozone),
10 MS/s
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References
Alvarez II, R.J., R.M. Hardesty, C.J. Senff, D.D. Parrish, W.T. Luke,
T.B. Watson, and P. H. Daum, 1996:
Intercomparison between in situ and lidar measurements of ozone during the
1995 Southern Oxidants Study. Procedings of 1996 AGU Fall Meeting,
San Francisco, California, USA, 15-19 December 1996, F96.
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