DLR's Cessna Grand Caravan with the TropOLEX system
DLR's Cessna Grand Caravan with the TropOLEX system
The "TropOLEX" differential lidar system (Tropospheric Ozone Lidar Experiment), developed by the German Aerospace Center, enables large-scale measuring of the vertical and horizontal ozone concentration from on board the Cessna Grand Caravan. The compact system is based on the differential lidar technique (or DIAL for short). This means that two laser pulses with different wavelengths are emitted, and the backscatter signals of both waves are then compared. This method enables measurement of the concentration of atmospheric trace gases such as ozone. TropOLEX is used to perform ozone measurements, but also to investigate the effects of long-distance air traffic on air pollution.
