Geoscience Reference
In-Depth Information
Fig. 4. Aerosol extinction profile obtained on the night of 1 June 2006.
3.3
. Aerosol observation
Figure 4 shows co-observation result of stratosphere and troposphere aerosol
extinction. The profile above the dash dot line (5 km) is obtained from
stratospheric Mie-scatter channel with an integration time of 5 min and
a vertical resolution of 150 m, the profile below the line is obtained from
tropospheric Mie-scatter channel with an integration time of 5 min and a
vertical resolution of 15 m. The detecting results of two channels agree with
each other well at 5 km.
4. Conclusion
The Mie-Rayleigh-Sodium fluorescence lidar in USTC now has the
capability to carry on Mie-scatter, Rayleigh-scatter and sodium resonance
fluorescence measurements from ground level to upper atmosphere. Its
technologic characters such as auto-align, auto-scan wavelength calibration
have greatly improved the system's performance and automation.
Compared with the previous studies and the modeling results, it shows
that our lidar system can give relatively reliable detection for sodium
density, atmospheric density and temperature and aerosol extinction.
