Biological enhancement of cloud droplet concentrations observed off East Antarctica
Abstract The impact that biogenic emissions have on aerosol-cloud interactions across the Southern Ocean is poorly quantified. Here we use satellite and ship observations during austral summer to study these interactions. We present observational evidence that biogenic aerosols increase cloud conden...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-025-00990-5 |
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| author | Marc D. Mallet Branka Miljevic Ruhi S. Humphries Gerald G. Mace Simon P. Alexander Alain Protat Scott Chambers Luke Cravigan Paul J. DeMott Sonya Fiddes James Harnwell Melita D. Keywood Greg M. McFarquhar Ian McRobert Kathryn A. Moore Caleb Mynard Chiemeriwo Godday Osuagwu Zoran Ristovski Paul Selleck Sally Taylor Jason Ward Alastair Williams |
| author_facet | Marc D. Mallet Branka Miljevic Ruhi S. Humphries Gerald G. Mace Simon P. Alexander Alain Protat Scott Chambers Luke Cravigan Paul J. DeMott Sonya Fiddes James Harnwell Melita D. Keywood Greg M. McFarquhar Ian McRobert Kathryn A. Moore Caleb Mynard Chiemeriwo Godday Osuagwu Zoran Ristovski Paul Selleck Sally Taylor Jason Ward Alastair Williams |
| author_sort | Marc D. Mallet |
| collection | DOAJ |
| description | Abstract The impact that biogenic emissions have on aerosol-cloud interactions across the Southern Ocean is poorly quantified. Here we use satellite and ship observations during austral summer to study these interactions. We present observational evidence that biogenic aerosols increase cloud condensation nuclei and cloud droplet number concentrations over the Southern Ocean off East Antarctica, coinciding with very low concentrations of ice-nucleating particles and higher occurrences of supercooled liquid-containing low-level clouds. |
| format | Article |
| id | doaj-art-fe51fd73dbd2404ebe66afa6c0eef252 |
| institution | DOAJ |
| issn | 2397-3722 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj-art-fe51fd73dbd2404ebe66afa6c0eef2522025-08-20T02:51:28ZengNature Portfolionpj Climate and Atmospheric Science2397-37222025-03-01811710.1038/s41612-025-00990-5Biological enhancement of cloud droplet concentrations observed off East AntarcticaMarc D. Mallet0Branka Miljevic1Ruhi S. Humphries2Gerald G. Mace3Simon P. Alexander4Alain Protat5Scott Chambers6Luke Cravigan7Paul J. DeMott8Sonya Fiddes9James Harnwell10Melita D. Keywood11Greg M. McFarquhar12Ian McRobert13Kathryn A. Moore14Caleb Mynard15Chiemeriwo Godday Osuagwu16Zoran Ristovski17Paul Selleck18Sally Taylor19Jason Ward20Alastair Williams21Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of TasmaniaSchool of Earth and Atmospheric Sciences, Queensland University of TechnologyAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of TasmaniaUniversity of UtahAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of TasmaniaAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of TasmaniaAustralian Nuclear Science and Technology OrganisationSchool of Earth and Atmospheric Sciences, Queensland University of TechnologyDepartment of Atmospheric Science, Colorado State UniversityAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of TasmaniaCSIRO EnvironmentAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of TasmaniaCooperative Institute for Severe and High-Impact Weather Research and Operations, University of OklahomaEngineering and Technology Program, CSIRO National Collections and Marine InfrastructureDepartment of Atmospheric Science, Colorado State UniversityCSIRO EnvironmentSchool of Earth and Atmospheric Sciences, Queensland University of TechnologySchool of Earth and Atmospheric Sciences, Queensland University of TechnologyCSIRO EnvironmentCSIRO EnvironmentCSIRO EnvironmentAustralian Nuclear Science and Technology OrganisationAbstract The impact that biogenic emissions have on aerosol-cloud interactions across the Southern Ocean is poorly quantified. Here we use satellite and ship observations during austral summer to study these interactions. We present observational evidence that biogenic aerosols increase cloud condensation nuclei and cloud droplet number concentrations over the Southern Ocean off East Antarctica, coinciding with very low concentrations of ice-nucleating particles and higher occurrences of supercooled liquid-containing low-level clouds.https://doi.org/10.1038/s41612-025-00990-5 |
| spellingShingle | Marc D. Mallet Branka Miljevic Ruhi S. Humphries Gerald G. Mace Simon P. Alexander Alain Protat Scott Chambers Luke Cravigan Paul J. DeMott Sonya Fiddes James Harnwell Melita D. Keywood Greg M. McFarquhar Ian McRobert Kathryn A. Moore Caleb Mynard Chiemeriwo Godday Osuagwu Zoran Ristovski Paul Selleck Sally Taylor Jason Ward Alastair Williams Biological enhancement of cloud droplet concentrations observed off East Antarctica npj Climate and Atmospheric Science |
| title | Biological enhancement of cloud droplet concentrations observed off East Antarctica |
| title_full | Biological enhancement of cloud droplet concentrations observed off East Antarctica |
| title_fullStr | Biological enhancement of cloud droplet concentrations observed off East Antarctica |
| title_full_unstemmed | Biological enhancement of cloud droplet concentrations observed off East Antarctica |
| title_short | Biological enhancement of cloud droplet concentrations observed off East Antarctica |
| title_sort | biological enhancement of cloud droplet concentrations observed off east antarctica |
| url | https://doi.org/10.1038/s41612-025-00990-5 |
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