@booklet {41613,
	title = {Assessing Sea-State Effects on Sea-Salt Aerosol Modeling in the Lower Atmosphere Using Lidar and In-Situ Measurements},
	journal = {Remote Sensing},
	volume = {13},
	year = {2021},
	month = {2021},
	abstract = {Atmospheric-chemical coupled models usually parameterize sea-salt aerosol (SSA) emissions using whitecap fraction estimated considering only wind speed and ignoring sea state. This approach may introduce inaccuracies in SSA simulation. This study aims to assess the impact of sea state on SSA modeling, applying a new parameterization for whitecap fraction estimation based on wave age, calculated by the ratio between wave phase velocity and wind speed. To this end, the new parameterization was incorporated in the coupled Chemical Hydrological Atmospheric Ocean wave modeling System (CHAOS). CHAOS encompasses the wave model (WAM) two-way coupled through the OASIS3-MCT coupler with the Advanced Weather Research and Forecasting model coupled with Chemistry (WRF-ARW-Chem) and, thus, enabling the concurrent simulation of SSAs, wind speed and wave phase velocity. The simulation results were evaluated against in-situ and lidar measurements at 2 stations in Greece (Finokalia on 4 and 15 July 2014 and Antikythera-PANGEA on 15 September 2018). The results reveal significant differences between the parameterizations with the new one offering a more realistic representation of SSA levels in some layers of the lower atmosphere. This is attributed to the enhancement of the bubble-bursting mechanism representation with air-sea processes controlling whitecap fraction. Our findings also highlight the contribution of fresh wind-generated waves to SSA modeling.},
	keywords = {air-sea interaction, atmosphere-wave-chemistry coupled models, CHAOS modeling system, lidar vertical profiles, liric algorithm, sea spray, whitecapping},
	isbn = {2072-4292},
	author = {Varlas, George and Marinou, Eleni and Gialitaki, Anna and Siomos, Nikolaos and Tsarpalis, Konstantinos and Kalivitis, Nikolaos and Solomos, Stavros and Tsekeri, Alexandra and Spyrou, Christos and Tsichla, Maria and Kampouri, Anna and Vervatis ,Vassilis and Giannakaki, Elina and Amiridis, Vassilis and Mihalopoulos, Nikolaos and Papadopoulos, Anastasios and Katsafados, Petros}
}
