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Organic aerosols’ impact on aerosol-cloud interactions in mixed-phase clouds

Applicant Borduas Nadine
Number 179703
Funding scheme Ambizione
Research institution Institut für Atmosphäre und Klima ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Climatology. Atmospherical Chemistry, Aeronomy
Start/End 01.11.2018 - 31.12.2021
Approved amount 718'988.00
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All Disciplines (2)

Discipline
Climatology. Atmospherical Chemistry, Aeronomy
Organic Chemistry

Keywords (6)

organic aerosol; mixed-phase clouds; atmospheric chemistry; photochemistry; ice nucleation; cloud condensation nuclei

Lay Summary (French)

Lead
Pour qu’il y ait des nuages dans le ciel, nous avons besoin de trois ingrédients : de la convection, de l'eau et de très petites particules appelées aérosols. Nous nous intéressons particulièrement à ces aérosols car ceux-ci forment les gouttelettes d’eau, appelées noyaux de condensation, et les cristaux de glace, appelées particules de nucléation de glace. Les interactions entre aérosols et nuages sont difficiles à prédire et elles ont un effet incertain sur le bilan radiatif de notre planète. Les aérosols organiques représentent un sous-ensemble d’aérosols qui affectent les nuages en phase mixte, commun en Suisse. Les modifications chimiques et physiques causées par la photochimie au cours de la vie d’un aérosol dans l’atmosphère modifieront sa capacité à former des nuages en phase mixte.
Lay summary
Ce projet collaboratif combine de manière unique les méthodes de chimie organique avec une instrumentation de pointe pour la nucléation de nuages. Dans un premier temps, nous identifierons et caractériserons les polymères organiques présents dans les aérosols organiques qui sont des noyaux de condensation et des particules de nucléation de glace efficaces. Deuxièmement, nous quantifierons l'effet du traitement atmosphérique des polymères organiques atmosphériques sur l'efficacité des noyaux de condensation et de particules de nucléation de glace. Et troisièmement, nous identifierons les paramètres chimiques et physiques nécessaires pour prédire les fractions organiques des aérosols capables de générer des nuages en phase mixte. Les résultats attendus amélioreront notre compréhension du rôle de la chimie dans la prédiction des interactions aérosol-nuage et auront des implications sur les domaines de la chimie atmosphérique, de la science des aérosols et de la modélisation du climat.
Direct link to Lay Summary Last update: 23.11.2018

Responsible applicant and co-applicants

Employees

Publications

Publication
Development of the drop Freezing Ice Nuclei Counter (FINC), intercomparison of droplet freezing techniques, and use of soluble lignin as an atmospheric ice nucleation standard
Miller Anna J., Brennan Killian P., Mignani Claudia, Wieder Jörg, David Robert O., Borduas-Dedekind Nadine (2021), Development of the drop Freezing Ice Nuclei Counter (FINC), intercomparison of droplet freezing techniques, and use of soluble lignin as an atmospheric ice nucleation standard, in Atmospheric Measurement Techniques, 14(4), 3131-3151.
Lignin's ability to nucleate ice via immersion freezing and its stability towards physicochemical treatments and atmospheric processing
Bogler Sophie, Borduas-Dedekind Nadine (2020), Lignin's ability to nucleate ice via immersion freezing and its stability towards physicochemical treatments and atmospheric processing, in Atmospheric Chemistry and Physics, 20(23), 14509-14522.
UVB-irradiated Laboratory-generated Secondary Organic Aerosol Extracts Have Increased Cloud Condensation Nuclei Abilities: Comparison with Dissolved Organic Matter and Implications for the Photomineralization Mechanism
Borduas-Dedekind Nadine, Nizkorodov Sergey, McNeill Kristopher (2020), UVB-irradiated Laboratory-generated Secondary Organic Aerosol Extracts Have Increased Cloud Condensation Nuclei Abilities: Comparison with Dissolved Organic Matter and Implications for the Photomineralization Mechanism, in CHIMIA International Journal for Chemistry, 74(3), 142-148.
Spatial and temporal variability in the ice-nucleating ability of alpine snowmelt and extension to frozen cloud fraction
Brennan Killian P., David Robert O., Borduas-Dedekind Nadine (2020), Spatial and temporal variability in the ice-nucleating ability of alpine snowmelt and extension to frozen cloud fraction, in Atmospheric Chemistry and Physics, 20(1), 163-180.
Photomineralization mechanism changes the ability of dissolved organic matter to activate cloud droplets and to nucleate ice crystals
Borduas-Dedekind Nadine, Ossola Rachele, David Robert O., Boynton Lin S., Weichlinger Vera, Kanji Zamin A., McNeill Kristopher (2019), Photomineralization mechanism changes the ability of dissolved organic matter to activate cloud droplets and to nucleate ice crystals, in Atmospheric Chemistry and Physics, 19(19), 12397-12412.
Reactive Oxygen Species Production from Secondary Organic Aerosols: The Importance of Singlet Oxygen
Manfrin Alessandro, Nizkorodov Sergey A., Malecha Kurtis T., Getzinger Gordon J., McNeill Kristopher, Borduas-Dedekind Nadine (2019), Reactive Oxygen Species Production from Secondary Organic Aerosols: The Importance of Singlet Oxygen, in Environmental Science & Technology, 53(15), 8553-8562.

Datasets

Photomineralization mechanism changes the ability of dissolved organic matter to activate cloud droplets and to nucleate ice crystals

Author Borduas-Dedekind, Nadine
Publication date 14.05.2019
Persistent Identifier (PID) https://doi.org/10.3929/ethz-b-000342107
Repository ETH Zurich Research Collection
Abstract
CCN and INP data of photo oxidized DOM samples.

Lignin’s ability to nucleate ice via immersion freezing and its stability towards physicochemical treatments and atmospheric processing

Author Borduas-Dedekind, Nadine; Bogler, Sophie
Publication date 28.09.2020
Persistent Identifier (PID) https://doi.org/10.3929/ethz-b-000422111
Repository ETH Zurich Research Collection


Development of the drop Freezing Ice Nuclei Counter (FINC), intercomparison of drop freezing instruments, and use of soluble lignin as an atmospheric ice nucleation standard

Author Miller, Anna; Borduas-Dedekind, Nadine
Publication date 07.09.2020
Persistent Identifier (PID) https://doi.org/10.3929/ethz-b-000438875
Repository ETH Zurich Research Collection


Collaboration

Group / person Country
Types of collaboration
Prof. Theodorah Nah/City University of Hong Kong Hongkong (Asia)
- in-depth/constructive exchanges on approaches, methods or results
Laboratoy of Atmospheric Chemistry/Paul Scherrer Institute Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
American Chemical Soceity Fall Meeting 2021 Poster Singlet oxygen in the atmosphere: Its photoproduction within aqueous organic aerosols from laboratory, outdoor and indoor sources 22.08.2021 online, United States of America Bogler Sophie; Borduas Nadine;
European Geophysical Union Meeting 2021 Poster The loss of ice activity of ice nucleating macromolecules in immersion freezing experiments due to salt 19.04.2021 online, Austria Went Jon Floyd; Borduas Nadine;
European Geophysical Union Meeting 2021 Poster Quantifying singlet oxygen production in organic aerosols: seasonality, spatial distribution and predictive molecular markers 19.04.2021 online, Austria Bogler Sophie; Borduas Nadine;
Atmospheric Chemistry Mechanisms (ACM) Conference by UC Davis 2020 Talk given at a conference Photoproduction of singlet oxygen from aqueous organic aerosols 02.11.2020 online, United States of America Borduas Nadine;
International Young Chemist Network Individual talk Thriving in Graduate School: The adventures and misadventures on the journey to a PhD degree 15.10.2020 online, United States of America Borduas Nadine;
City University of Hong Kong environmental science seminar Individual talk Shining light on oxidants in the atmosphere: The case of singlet oxygen from aqueous organic aerosols 13.10.2020 online, Hongkong Borduas Nadine;
Lunch seminars for the Young Scientists in the Swiss Society of Biomaterials and Regenerative Medicine Individual talk Social media for scientists: The power of online networking 06.10.2020 online, Switzerland Borduas Nadine;
UK Centre for Doctoral Training in Aerosol Science weekly webinars Individual talk Cool cloud chemistry: Molecular insights into the ice nucleating ability of organic matter 17.09.2020 online, Great Britain and Northern Ireland Borduas Nadine;
Annual Doctoral Symposium at the Institute of Agricultural Sciences at ETH Zurich Talk given at a conference Social media for scientists: The power of online networking 07.09.2020 Eisendeln, Switzerland Borduas Nadine;
European Aerosol Conference 2020 Poster The ice nucleating ability of dissolved organic matter: Development of the drop Freezing Ice Nuclei Counter (FINC), using soluble lignin as an immersion freezing standard, and application to ice nucleation macromolecules 30.08.2020 online, Germany Borduas Nadine; Miller Anna Josefa Janu;
Swiss Chemical Society Annual meeting 2020 Talk given at a conference Photochemistry of organic matter in the atmosphere and its effect on mixed-phase cloud formation 25.08.2020 online, Switzerland Borduas Nadine;
Royal Society of Chemistry (RSC): Environmental Chemistry Division #EnvChem Talk given at a conference Reactive oxygen species (ROS), including singlet oxygen, production within irradiated aqueous organic aerosols 10.07.2020 online, Great Britain and Northern Ireland Borduas Nadine;
Paul Scherrer Institute seminar series Individual talk In the air, in the water and in the soil: Photochemistry of organic matter produces reactive oxygen species (ROS), including in atmospheric aerosols 12.05.2020 online, Switzerland Borduas Nadine;
Pint of Science Canada: 2020 Science Festival (en français) Talk given at a conference Démonstration de laboratoire de la chimie des nuages 11.05.2020 online, Canada Borduas Nadine;
European Geophysical Union Meeting 2020 Poster Development of drop freezing ice nucleation chamber (FINC), validation using lignin, and application to organic matter samples 04.05.2020 online, Austria Miller Anna Josefa Janu; Borduas Nadine;
European Geophysical Union Meeting 2020 Poster Lignin’s ability to nucleate ice via immersion freezing 04.05.2020 online, Austria Bogler Sophie; Borduas Nadine;
European Geophysical Union Meeting 2020 Poster The effect of the photomineralization mechanism on ambient organic aerosols’ cloud condensation nuclei and ice nucleation abilities 04.05.2020 online, Austria Müller Silvan; Borduas Nadine;
Massachusetts Institute of Technology's firechat seminar series in atmospheric chemistry Individual talk (Mis)adventures in my academic career (so far) 29.04.2020 online, United States of America Borduas Nadine;
Institute for Atmospheric and Climate Sciences (IAC) colloquium at ETH Zurich Individual talk Cool cloud chemistry: Molecular insights into the ice nucleating ability of organic matter 13.04.2020 online, Switzerland Borduas Nadine;
University of Padova seminar series Individual talk Photochemistry of atmospheric organic aerosols: Can chemical mechanisms be linked to aerosol-cloud interactions? 07.01.2020 Padova, Italy Borduas Nadine;
Invited talk for the Environmental Science seminar series at the University of Basel Individual talk In the air, in the ocean and in the soil: Photochemistry of organic matter produces reactive oxygen species 20.11.2019 Basel, Switzerland Borduas Nadine;
Invited talk in the Chemistry Seminar series at the University of Gothenburg Individual talk Reactive oxygen species in the atmosphere: the significance of singlet oxygen production within aqueous organic aerosols 25.10.2019 Gothenburg, Sweden Borduas Nadine;
Invited talk in the Atmospheric Science seminar series at the University of British-Columbia Individual talk Cool cloud chemistry: Molecular insights into the ice nucleating ability of organic carbon 05.09.2019 Vancouver, British-Columbia, Canada Borduas Nadine;
Invited talk in the Environmental Science groups at the University of California, Berkeley Individual talk Cool cloud chemistry: Molecular insights into the ice nucleating ability of organic carbon 03.09.2019 Berkeley, California, United States of America Borduas Nadine;
American Chemical Society Fall Meeting 2019 Talk given at a conference Molecular Insight of Organic Matter’s atmospheric Ice Nucleating Ability 25.08.2019 San Diego, United States of America Bogler Sophie; Miller Anna Josefa Janu; Brennan Killian Patrick; Borduas Nadine;
Gordon Research Conference - Atmospheric Chemistry Poster Reactive Oxygen Species in Aqueous Organic Aerosols: The Relevance of Singlet Oxygen (1O2) 28.07.2019 Newry, Maine, United States of America Borduas Nadine; Leist Lisa Gerline Thekla;
Invited talk in the Environmental Chemistry seminar series at the University of Toronto Individual talk Cool cloud chemistry: Molecular insights into the ice nucleating ability of organic carbon 25.07.2019 Toronto, Ontario, Canada Borduas Nadine;
European Geophysical Union Meeting 2019 Talk given at a conference Reactive Oxygen Species (ROS) production in organic aerosols: The importance of singlet oxygen 07.04.2019 Vienna, Austria Borduas Nadine;
European Geophysical Union Meeting 2019 Poster Heterogeneity of ice nucleating particles measured in Swiss alpine snow samples 07.04.2019 Vienna, Austria Brennan Killian Patrick; Borduas Nadine;
12th International Conference on Carbonaceous Particles in the Atmosphere (ICCPA 2019) Poster Molecular Insight on Organic Matter’s Ice Nucleating Ability in Immersion Freezing 03.04.2019 Vienna, Austria Miller Anna Josefa Janu; Borduas Nadine; Bogler Sophie;
Invited talk in Seminar series at the Institute of Meteorology and Climate Research at Karlsruhe Institute of Technology (KIT) Individual talk Atmospheric ice nucleation ability of organic matter 22.11.2018 Karlsruhe, Germany Borduas Nadine;


Knowledge transfer events

Active participation

Title Type of contribution Date Place Persons involved
Pinte de Science 2020 pour enfants (in French) Performances, exhibitions (e.g. for education institutions) 13.05.2020 online, Canada Borduas Nadine;
Mädchentag 2019 Performances, exhibitions (e.g. for education institutions) 03.09.2019 Zurich, Switzerland Borduas Nadine; Leist Lisa Gerline Thekla;


Awards

Title Year
ETH Zurich Silver Medal 2021
RSC Advances Emerging Investigator 2021
Citation type of recognition: Chemistry World News (researcher profile) An article outlining my groups' current effort in understanding cloud chemistry. https://www.chemistryworld.com/news/how-the-products-of-fire-control-the-formation-of-snow/4012107.article 2020
Student Travel award to the European Geophysical Union 2020
Environmental Science & Technology’s Excellence in Review 2019 Award 2019
Student Travel award to the European Geophysical Union 2019

Abstract

To have clouds in the sky, three ingredients are necessary: convection, water and tiny particles called aerosols. We are particularly interested in these aerosols because they activate into water droplets, termed cloud condensation nuclei (CCN), and nucleate ice crystals, termed ice nucleating particles (INPs). Furthermore, aerosol-cloud interactions are difficult to predict and yet have a highly uncertain effect on the planet’s radiative balance and climate. Organic aerosols represent a subset of aerosols able to act as CCN and as, recently found, INPs, and affect the types of clouds in which liquid water co-exists with ice crystals, called mixed phase clouds, common in Switzerland. Between the location where organic aerosols are emitted and/or formed and where they act as CCN and INP in mixed phase clouds, they will undoubtedly undergo atmospheric processing including sunlight exposure. Chemical and physical changes caused by sunlight exposure, or photochemistry, during an aerosol’s approximately one-week lifetime in the atmosphere are expected to alter its ability to form mixed phase clouds.This collaborative project uniquely combines organic chemistry methods and analytical techniques, available in the Environmental Chemistry Group of Prof. McNeill, with state-of-the-art cloud nucleation instrumentation, available in the Atmospheric Physics Group of Prof. Lohmann, both at ETH. My group serves as a bridge to bring a unique environmental chemistry perspective to atmospheric science. The project objectives are three-fold. Firstly, we identify and characterize organic polymers present in organic aerosols that are efficient CCN and INPs. Secondly, we quantify the effect of atmospheric processing of organic atmospheric polymers on CCN and INP efficiency. And thirdly, we identify the key chemical and physical parameters required to adequately predict organic aerosol fractions able to act as CCN and INPs.The anticipated results will improve our understanding of the role of chemistry in predicting aerosol-cloud interactions and will have implications on the fields of atmospheric chemistry, aerosol science, and climate modelling.
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