Abstract
The developed Annual Columnar Radiative Absorptivity (ACRA19) model that describes, in annual mean, the terrestrial radiation balance of an atmospheric column, allows the determination of the various regional, absorption and reflection of solar and infrared radiation using 2018’s annual data of eight sites in MENA region ( between 22N-38N) of latitude obtained from AERONET and NASA POWER. The atmospheric thermal absorptivity (ATA) is very significant at high temperatures with an average of 0.85±0.1 for 1020 nm and the atmospheric visible absorptivity (AVA) registers 0.36 ± 0.06 when the total optical depth observes its maximum linked to dust aerosol advection.
Highlights
The Absorption of solar and thermal radiation by the atmosphere and soil determines climate trends
Over the last few years, the climate of the Middle East and North Africa (MENA) experienced an increase in temperature and high dryness[3], make MENA one of the most prominent climate change “hot spots”. This region is described by the sizeable hot desert climate with a high concentration of dust aerosols [4] that influence the radiative balance of the climate system by absorbing and scattering solar radiation and thermal infrared radiation [5]
In this work and for eight sites in the MENA area (Figure 1), we determine the various absorptivity of solar radiation by the atmosphere atmospheric visible absorptivity (AVA), the surface s1, and the reflectivity of solar radiation r1, as well as the absorptivity of infrared radiation by the atmosphere atmospheric thermal absorptivity (ATA), using a simple model of terrestrial radiation balance (Figure 2)
Summary
The Absorption of solar and thermal radiation by the atmosphere and soil determines climate trends. This region is described by the sizeable hot desert climate with a high concentration of dust aerosols [4] that influence the radiative balance of the climate system by absorbing and scattering solar radiation and thermal infrared radiation [5].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
