Sea salt reactivity over the northwest Atlantic: an in-depth look using the airborne ACTIVATE dataset

Edwards, Eva-Lou; Choi, Yonghoon; Crosbie, Ewan C.; DiGangi, Joshua P.; Diskin, Glenn S.; Robinson, Claire E.; Shook, Michael A.; Winstead, Edward L.; Ziemba, Luke D.; Sorooshian, Armin

doi:https://doi.org/10.5194/acp-24-3349-2024

Articles | Volume 24, issue 5

https://doi.org/10.5194/acp-24-3349-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-3349-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 5

Research article

|

18 Mar 2024

Research article |

| 18 Mar 2024

Sea salt reactivity over the northwest Atlantic: an in-depth look using the airborne ACTIVATE dataset

Eva-Lou Edwards, Yonghoon Choi, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Claire E. Robinson, Michael A. Shook, Edward L. Winstead, Luke D. Ziemba, and Armin Sorooshian

Supplement

https://doi.org/10.5194/acp-24-3349-2024-supplement

Data sets

Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment Data ACTIVATE Science Team https://doi.org/10.5067/SUBORBITAL/ACTIVATE/DATA001

Ocean Ecology Laboratory, Ocean Biology Processing Group. Moderate-resolution Imaging Spectroradiometer (MODIS) Aqua Data NASA Goddard Space Flight Center https://doi.org/10.5067/AQUA/MODIS/L3M/CHL/2022

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Short summary

We investigate Cl⁻ depletion in sea salt particles over the northwest Atlantic from December 2021 to June 2022 using an airborne dataset. Losses of Cl⁻ are greatest in May and least in December–February and March. Inorganic acidic species can account for all depletion observed for December–February, March, and June near Bermuda but none in May. Quantifying Cl⁻ depletion as a percentage captures seasonal trends in depletion but fails to convey the effects it may have on atmospheric oxidation.