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Impact of Changing Arctic Sea Ice Extent, Sea Ice Age, and Snow Depth on Sea Salt Aerosol From Blowing Snow and the Open Ocean for 1980–2017
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2023
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Source: Journal of Geophysical Research: Atmospheres, 128(3)
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:We evaluate the effects of rapidly changing Arctic sea ice conditions on sea salt aerosols (SSA) produced by oceanic wave-breaking and the sublimation of wind-lofted salty blowing snow on sea ice. We use the GEOS-Chem chemical transport model to assess the influence of changing extent of the open ocean, multi-year sea ice (MYI), first-year sea ice (FYI), and snow depths on SSA emissions for 1980–2017. We combine snow depths from the Lagrangian snow-evolution model (SnowModel-LG) together with an empirically-derived snow salinity function of snow depth to derive spatially and temporally varying snow surface salinity over Arctic FYI. We find that pan-Arctic SSA surface mass concentrations have increased by
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Source:Journal of Geophysical Research: Atmospheres, 128(3)
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ISSN:2169-897X;2169-8996;
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Rights Information:CC BY
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Compliance:Library
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