Articles | Volume 20, issue 12
Atmos. Chem. Phys., 20, 7553–7573, 2020
https://doi.org/10.5194/acp-20-7553-2020

Special issue: Marine aerosols, trace gases, and clouds over the North Atlantic...

Atmos. Chem. Phys., 20, 7553–7573, 2020
https://doi.org/10.5194/acp-20-7553-2020

Research article 30 Jun 2020

Research article | 30 Jun 2020

Identifying a regional aerosol baseline in the eastern North Atlantic using collocated measurements and a mathematical algorithm to mask high-submicron-number-concentration aerosol events

Francesca Gallo et al.

Data sets

Eastern North Atlantic Aerosol Mask (ENA-AM) with the Condensation Particle Counter (CPC) at Supplementary Facility (S01) A. Aiken and F. Gallo https://doi.org/10.5439/1581730

Eastern North Atlantic Aerosol Mask (ENA-AM) with the Condensation Particle Counter (CPC) at Central Facility (C1) during Summer 2017 F. Gallo and A. Aiken https://doi.org/10.5439/1579567

Eastern North Atlantic Aerosol Mask (ENA-AM) with the Condensation Particle Counter (CPC) at Central Facility (C1) during Winter 2017 F. Gallo and A. Aiken https://doi.org/10.5439/1579568

2014, updated hourly. Ultra-High Sensitivity Aerosol Spectrometer (AOSUHSAS). 2017-07-22 to 2017-12-30, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal (C1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1095587

2014, updated hourly. Ultra-High Sensitivity Aerosol Spectrometer (AOSUHSAS). 2017-07-22 to 2017-12-30, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal; Supplemental Site (S1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1095587

2015, updated hourly. Meteorological Measurements associated with the Aerosol Observing System (AOSMET). 2017-07-22 to 2017-12-30, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal (C1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1025153

2015, updated hourly. Meteorological Measurements associated with the Aerosol 10 Observing System (AOSMET). 2017-07-22 to 2017-12-30, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal; Supplemental Site (S1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1025153

2017, updated hourly. Condensation particle counter aboard aircraft 20 (AAFCPCFISO). 2017-06-20 to 2017-07-20, Eastern North Atlantic (ENA) Gulfstream 159 Aircraft (F1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1368538

2019, updated hourly. Condensation Particle Counter (AOSCPCF). 2017-07-22 to 2018-01-31, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal (C1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1046184

2019, updated hourly. Condensation Particle Counter (AOSCPCF). 2017-07-22 to 2017-12-30, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal; Supplemental Site (S1) Atmospheric Radiation Measurement (ARM) user facility https://doi.org/10.5439/1046184

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Short summary
Continuous high-time-resolution ambient data can include periods when aerosol properties do not represent regional aerosol processes due to high-concentration local events. We develop a novel aerosol mask at the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) facility in the eastern North Atlantic (ENA). We use two ground sites to validate the mask, include a comparison with aircraft overflights, and provide guidance to increase data quality at ENA and other locations.
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