College of Science, Mustansiriyah University discussed a Ph.D. thesis on the effect of atmospheric mixing on the change in the spectral fingerprint of the components of the surfaces of the City of Baghdad in satellite image ranges by the postgraduate student, Ms. Iman Saad Hassan.

The thesis aimed at studying the extent to which the conditions of atmospheric mixing occurring due to the vertical convection movement of the atmosphere and the horizontal mechanical movement affect the change in the spectral signature of the components of the surfaces of the City of Baghdad in the ranges of satellite images of the satellite (Sentinel-2) and to determine the most affected spectral range by turbulent weather conditions and finding an equation to determine the relation between the atmospheric mixing of the specific surface of the city of Baghdad with the corresponding bands with specific spectral reflectance, as well as atmospheric correction of moon images to obtain more accurate images that can be used in measuring spectral reflectivity.

The thesis highlighted that plants have a high reflectivity in the near-infrared (NIR) range, while open areas, water bodies, and residential areas have a higher reflectivity in the red (RED) range, compared to both types of near-infrared (NIR) and short-wave. (SWIR) and the month of June witnessed the recording of the highest values for both solar radiations, mixing layer height and spectral reflectivity spectral reflectance is more affected by solar radiation than by atmospheric mixing layer height and the short-wave infrared band is the spectral band most affected by the atmospheric correction procedure (SWIR).