5/29/2014DUST 2014, Italy1AEROSOL LIDAR PROFILING OVER ROMANIA

Anca Nemuc*, L.Labzovskii, F. Toanca , L. Belegante

National Institute of Research and Development for Optoelectronics, Romania * anca@inoe.ro

1Aerosol Profiling in Romania2CONTEXTAtmospheric aerosol is significantly related to global environmental problems such as global warming and acid rain. It has a high impacts on human health and ecosystems3

http://www.tuat.ac.jp/~aerosol/en/

Romanian Atmospheric 3D research Observatoryhttp://rado.inoe.ro

5/29/20144

4Why remote sensing?Modelers needs accurate measured data in order to:Improve the outputVerifyValidateAssimilate (initialize)

Atmosphere = 4D variable system (3D space + 1D time )High-resolution 4D data!5/29/20145Instruments and methodologySunphotometer (AERONET, integrated column)Aerosol Mass Spectrometer (in situ)Average mass concentration for Organics, Sulfate, Ammonium, Nitrate, Chloride (Mass range distribution of aerosols up to 800 m/z)Aerodynamic size distribution of aerosols

6Multiwavelength depolarization lidar-RALI3 elastic channels (1064, 532, 355nm)+ 2 Raman channels (607, 387nm) + depolarization (532nm)Range: 0.85 ... 15Km (depending on the atmosphere)

* Muller, D., U. Wandinger, and A. Ansmann, Microphysical particle parameters from extinction and backscatter lidar data by inversion with regularization: Theory, Appl. Opt., 38, 23462357, 1999aEARLINET SCC Single Calculus Chain Microphysics inversion*built in database for Mie calculationmin no. of solutions accepted: 30discrepancy max. 10% (generally 1%)no constraint on uncertainty, but only data with statistical error