Sensitization Towards Aerosol Optical Properties And Radiative Forcing, Real Case In Morocco

Mineral dust is one of the most important aerosol components in Earth’s atmosphere. Desert constitute main types tropospheric aerosols whose optical property uncertainties are still quite important. In this study, we analyse variability depth (AOD), Angstrôm Exponent (α), Single Scattering Albedo (ω 0 ) and radiative forcing (ARF) desert recent measurements, for six AERONET sites covering belt areas: Ouarzazate (Morocco), Tamanrasset (Algeria), El Farafra (Egypt), Mezaira (Unites Arab Emirates), Kuwait University (Kuwait), Dalanzadgad (Mongolia). The annual cycle dialy averages shows variable values due to changeable weather Sahara source. highests were recorded at site (2.2 Tamanrasset) (2.9 Kuwait-University). spectral single scattering albedo SSA varies interval (0,8-0.95) indicating dominant scattering. always a negative ARF with maximums registred July, -90 W/m 2 surface (Mezaira) -26 top atmosphere (Kuwait) that imply general trend towards regional warming total column maximum near +55 observed July UAE.