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22 November 2024 Comparative analysis of atmospheric aerosol models for quantifying aerosol loading and characterizing visibility in West Africa
Thomas Kociok, Carmen Ullwer, Karin Stein, Alexander M. J. van Eijk
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Proceedings Volume 13194, Environmental Effects on Light Propagation and Adaptive Systems VII; 131940B (2024) https://doi.org/10.1117/12.3031852
Event: Remote Sensing, 2024, Edinburgh, United Kingdom
Abstract
In this study, we compare four of these Chemical Transport Models (CTMs): the Dutch LOTOS-EUROS model, the German ICON-ART model, the Spanish MONARCH model, and the community model WRF-CHEM. Our study area is West Africa and the timeframe for the comparison is June 2020. We focus on the dust component and compare several dust emission schemes. Simulation results include near-surface aerosol (dust) concentrations, as well as optical properties such as the column extinction (AOD, aerosol optical depth) and visibility. The latter parameter is compared to experimental visibility data acquired at airports situated in the study area. Overall, our analysis demonstrates that dust concentrations (and hence visibility) depend not only on the emission scheme, but also on the meteorological (transport) conditions.
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Thomas Kociok, Carmen Ullwer, Karin Stein, and Alexander M. J. van Eijk "Comparative analysis of atmospheric aerosol models for quantifying aerosol loading and characterizing visibility in West Africa", Proc. SPIE 13194, Environmental Effects on Light Propagation and Adaptive Systems VII, 131940B (22 November 2024); https://doi.org/10.1117/12.3031852
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KEYWORDS
Aerosols
Atmospheric modeling
Solar radiation models
Atmospheric particles
Visibility
Solar radiation
Data acquisition
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