Articles | Volume 21, issue 3
https://doi.org/10.5194/acp-21-1889-2021
https://doi.org/10.5194/acp-21-1889-2021
Research article
 | 
10 Feb 2021
Research article |  | 10 Feb 2021

Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region

Betty Croft, Randall V. Martin, Richard H. Moore, Luke D. Ziemba, Ewan C. Crosbie, Hongyu Liu, Lynn M. Russell, Georges Saliba, Armin Wisthaler, Markus Müller, Arne Schiller, Martí Galí, Rachel Y.-W. Chang, Erin E. McDuffie, Kelsey R. Bilsback, and Jeffrey R. Pierce

Data sets

Aerosol Particle Chemical and Physical Measurements on the 2015, 2016, 2017, and 2018 North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) Research Cruises L. M. Russell, C.-L. Chen, R. Betha, D. J. Price, and S. Lewis https://doi.org/10.6075/J04T6GJ6

NAAMES NASA https://doi.org/10.5067/Suborbital/NAAMES/DATA001

NAAMES NASA https://doi.org/10.5067/SeaBASS/NAAMES/DATA001

geoschem/geoschem: GEOS-Chem 12.1.1 (Version 12.1.1) The International GEOS-Chem User Community https://doi.org/10.5281/zenodo.2249246

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Short summary
North Atlantic Aerosols and Marine Ecosystems Study measurements combined with GEOS-Chem-TOMAS modeling suggest that several not-well-understood key factors control northwest Atlantic aerosol number and size. These synergetic and climate-relevant factors include particle formation near and above the marine boundary layer top, particle growth by marine secondary organic aerosol on descent, particle formation/growth related to dimethyl sulfide, sea spray aerosol, and ship emissions.
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