Aerosol Mineralogical Study Using Laboratory and IASI Measurements: Application to East Asian Deserts

East Asia is the second-largest mineral dust source in world, after Sahara. When dispersed atmosphere, can alter Earth’s radiation budget by changing atmosphere’s absorption and scattering properties. Therefore, mineralogical composition of key to understanding impact on atmosphere. This paper presents new information during Asian events that were obtained from laboratory measurements combined with satellite remote sensing detections Infrared Atmospheric Sounding Interferometer (IASI). However, this region lifted above continent lower troposphere, posing constraints due large variability Land Surface Emissivity (LSE). First, a methodology was developed correct LSE mean monthly emissivity dataset. The results show an adjustment IASI spectra acquiring aerosol information. Then, experimental extinction coefficients pure minerals linearly reproduce Gobi spectrum, which allowed for determination mass weights. In addition, radiances, spectral optical thickness calculated, displaying features identical measured laboratory. linear combination also applied thickness, providing Finally, method optimization, evolution maps two different seasons years, May 2017 March 2021. weights originating Desert, Taklamakan Horqin Sandy are close literature. spatial linked possible sources, it examined backward trajectory model. Moreover, comparison between instruments METOP-A -B proved method’s applicability METOP platforms. Due all above, powerful tool exploiting mineralogy sources using both properties detections.