Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Study of the Atmospheric Transport of Sea-Spray Aerosols in a Coastal Zone Using a High-Resolution Model

Version 1 : Received: 13 May 2024 / Approved: 13 May 2024 / Online: 17 May 2024 (06:22:39 CEST)

How to cite: Limoges, A.; Piazzola, J.; Yohia, C.; Rodier, Q.; Bruch, W.; Canepa, E.; Sagaut, P. Study of the Atmospheric Transport of Sea-Spray Aerosols in a Coastal Zone Using a High-Resolution Model. Preprints 2024, 2024050958. https://doi.org/10.20944/preprints202405.0958.v1 Limoges, A.; Piazzola, J.; Yohia, C.; Rodier, Q.; Bruch, W.; Canepa, E.; Sagaut, P. Study of the Atmospheric Transport of Sea-Spray Aerosols in a Coastal Zone Using a High-Resolution Model. Preprints 2024, 2024050958. https://doi.org/10.20944/preprints202405.0958.v1

Abstract

Fine scale models for the transport of marine aerosols are of great interest for the study of micro-climates and air quality in areas of complex topography, such as in urbanized coastal areas. To this end, the MIO laboratory implemented the Meso-NH model in its LES version over the North-West Mediterranean coastal zone using a recent sea-spray source function. Simulated meteorological parameters and aerosol concentrations are compared to experimental data acquired in the Mediterranean coastal zone in spring 2008, onboard R/V Atalante. Key findings indicate that the Large-Eddy Simulation (LES) mode closely matches with the experimental data, enabling an in-depth analysis of the numerical model ability to predict variations in aerosol concentrations. These variations are influenced by different wind directions, which lead to various fetch distances typical of coastal zones.

Keywords

sea-spray source function; fetch; coastal aerosols; atmospheric modelling

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

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