Climatology of Aerosols over the Caribbean Islands: Aerosol Types, Synoptic Patterns, and Transport
نویسندگان
چکیده
Abstract We present a climatological study of aerosols in four representative Caribbean Sea islands that is based on daily mean values aerosol optical properties for the period 2008–16, using depth (AOD) and Ångström exponent (AE) to classify dominant type. A assessment spatiotemporal distribution main types, their links with synoptic patterns, transport from different sources provided. Maximum AOD occur rainy season, coinciding minimum AE an increased occurrence dust, whereas occurs dry due predominance marine aerosols. Marine dust are more frequent easternmost decrease westward because increase continental mixture Therefore, westernmost station displays most heterogeneous composition Using weather-type classification, we identify quantifiable influence atmospheric circulation However, they can under relatively weak and/or diverse typically involving transient systems specific configurations Azores high depend considered station. Backward trajectories indicate dry-season rainy-season transported by air parcels traveling within tropical easterly winds. The source region both types subtropical eastern Atlantic Ocean, except Cuba, where largest contributor western Atlantic. Different follow similar pathways, suggesting key role emission determining
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ژورنال
عنوان ژورنال: Journal of Applied Meteorology and Climatology
سال: 2022
ISSN: ['1558-8424', '1558-8432']
DOI: https://doi.org/10.1175/jamc-d-21-0015.1