Measurement report: Cloud processes and the transport of biological emissions affect southern ocean particle and cloud condensation nuclei concentrations

Sanchez, Kevin J.; Roberts, Gregory C.; Saliba, Georges; Russell, Lynn M.; Twohy, Cynthia; Reeves, J. Michael; Humphries, Ruhi S.; Keywood, Melita D.; Ward, Jason P.; McRobert, Ian M.

doi:https://doi.org/10.5194/acp-21-3427-2021

Articles | Volume 21, issue 5

https://doi.org/10.5194/acp-21-3427-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-3427-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 5

Measurement report

|

05 Mar 2021

Measurement report |

| 05 Mar 2021

Measurement report: Cloud processes and the transport of biological emissions affect southern ocean particle and cloud condensation nuclei concentrations

Kevin J. Sanchez, Gregory C. Roberts, Georges Saliba, Lynn M. Russell, Cynthia Twohy, J. Michael Reeves, Ruhi S. Humphries, Melita D. Keywood, Jason P. Ward, and Ian M. McRobert

Supplement

https://doi.org/10.5194/acp-21-3427-2021-supplement

Data sets

SOCRATES CCN measurements, Version 1.1 K. Sanchez and G. Roberts https://doi.org/10.5065/D6Z036XB

Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data, Version 2.0 UCAR/NCAR - Earth Observing Laboratory https://doi.org/10.5065/D6M32TM9

Introduction of the GSI into the NCEP Global Data Assimilation System (ftp://arlftp.arlhq.noaa.gov/pub/archives/gdas0p5/) D. T. Kleist, D. F. Parrish, J. C. Derber, R. Treadon, W.-S. Wu, and S. Lord https://doi.org/10.1175/2009WAF2222201.1

ECMWF 0.1 Degree IFS Model Data, Version 1.0 European Centre for Medium Range Weather Forecasts (ECMWF) https://doi.org/10.26023/Z0M2-M6YK-XD12

CAPRICORN2 - Atmospheric aerosol measurements from the RV Investigator voyage in 2018.v1 R. Humphries, I. McRobert, J. Ward, J. Harnwell, and M. Keywood, M. https://doi.org/10.25919/2h1c-t753

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Short summary

Measurements of particles and their properties were made from aircraft over the Southern Ocean. Aerosol transported from the Antarctic coast is shown to greatly enhance particle concentrations over the Southern Ocean. The occurrence of precipitation was shown to be associated with the lowest particle concentrations over the Southern Ocean. These particles are important due to their ability to enhance cloud droplet concentrations, resulting in more sunlight being reflected by the clouds.