Ground-based Lidar Operations
Instrument Specifications
TEA CO2 10 µm Doppler Lidar | |
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Measures: | radial wind, aerosol backscatter |
Spatial coverage: | full-hemispheric scans |
Range: | 1 - 10 (or more) km |
Resolution: | 300 m |
Ozone Profiling Atmospheric Lidar (OPAL) | |
Measures: | ozone, aerosol backscatter |
Spatial coverage: | vertical slice scan (30° - 150°), horizontal |
Range: | 0.3 - 3 km |
Resolution: | 90 m (ozone), 15 m (aerosol) |
Platform: TEA CO2 Doppler Lidar and OPAL colocated at La Porte Municipal Airport ground site
Availability: 18 August - 15 September 2000
Operation: 0600 - 2200 CDT most days
Major objectives:
- Characterize the dynamics of the gulf, bay, and land breezes andtheir effect on pollutant distribution
- Document the temporal evolution and 2-D structure of ozone andaerosol concentration
Scan Strategy:
- TEA CO2 Doppler lidar More Details...
- PPIs: 0, 2, 4, 6, 10, 25 degrees elevation, 360 degrees in azimuth
- RHIs: 0, 30, 60, 90, 120, 150 degrees azimuth, horizon-to-horizon
- OPAL
Series of survey scans executed on the hour and half-hour
Special scans (PPIs, RHIs, Raster scans) to fill out the half hour
Series of 5-min stares at 2, 10, 30 and 90 degrees elevation repeated every 20 minutes. This provides composite ozone and aerosol profiles from near the ground to 3km AGL at a time resolution of 20 minutes.
In case of transient events (e.g. breeze front passage) switch to extended stares at appropriate angle as advised by TEACO2 operators.