Study on the design of measuring organic aerosol fluorescence lidar

In order to measure the organic aerosol in the atmosphere,based on laser induced fluorescence,a fluorescence lidar model system was put forward for detecting organic aerosol in the atmosphere.The principle of models system measurement was described exhaustively,system model parameters were presented after fully simulating and analyzing,accounting detection capability.The results showed that when the lidar worked at night,the least detectable density of organic aerosol was only a few particles/L within 5km;while during the daytime,the least detectable density could reduce to less than 10 particles/L within 2km due to background radiation.The results show that the lidar model can satisfy the requirement of real organic aerosol detecting,which could provide valuable instructions to the design of a real system.