<div class="csl-bib-body">
<div class="csl-entry">Stolzenburg, D. M., Cai, R., Blichner, S. M., Kontkanen, J., Zhou, P., Makkonen, R., Kerminen, V.-M., Kulmala, M., & Kangasluoma, J. (2024, April 17). <i>Aligning experimental and model perspectives on atmospheric nanoparticle growth</i> [Poster Presentation]. European Geoscience Union General Assembly 2024, Wien, Austria. https://doi.org/10.5194/egusphere-egu24-7692</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/204246
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dc.description.abstract
The process of new particle formation from gas-phase precursors holds significant importance in Earth's atmosphere and introduces a notable source of uncertainty in climate change predictions. The growth of freshly formed molecular clusters should in theory be crucial for the climate impact of new particle formation, influencing the survival probability of these particles exponentially and determining their ability to act as cloud condensation nuclei. However, defining the fundamental aspects of nanoparticle growth is intricate. It involves a complex interplay of condensational and reactive vapor uptake, aerosol coagulation, sink processes, and a diverse array of potential gaseous precursors. Observational nanoparticle growth rates, derived from the evolution of the particle-size distribution, portray growth as a collective phenomenon. However, models often interpret these rates at a single-particle level, integrating them into simplified size-distribution representations (Stolzenburg et al., 2023). dditionally, many models only consider a limited subset of condensable vapors, while recent experimental observations identify an increasing number of potential contributors to new particle growth.
Our objective here is to bridge the gap between experimental and modeling studies on nanoparticle growth. We compare three large-scale models (NorESM, ECHAM, and TM5) regarding their sensitivity to organic nanoparticle growth processes. Surprisingly, we find a much lower sensitivity than anticipated from box models. Through the inclusion of a sectional scheme into NorESM, we demonstrate that representing the complexity of size distribution dynamics leads to significantly different cloud condensation nuclei (CCN) levels. Furthermore, our results suggest that, on regional scales, sensitivity to organic growth is much higher. Inclusion of additional growth processes and/or a scaling of condensable vapor concentrations could yield a significantly altered climate response. In turn, comprehensive experimental observations from e.g. the open oceans are still lacking and we show that continental data exhibit surprisingly little variation in measured particle growth rates. The latter indicates limited sensitivity in current experimental approaches and potential unaccounted multi-phase chemistry in the growth process.
Consequently, we propose specific guidance for future research to address questions regarding the buffered climate response in large-scale models and the unexpectedly low variation observed in global growth measurements. We advocate for more sensitivity studies and improved model-measurement comparisons.
en
dc.description.sponsorship
WWTF Wiener Wissenschafts-, Forschu und Technologiefonds
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dc.language.iso
en
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dc.subject
Aerosols
en
dc.subject
New particle formation
en
dc.subject
Aerosol indirect-effect
en
dc.subject
Nanoparticle growth
en
dc.subject
Highly oxygenated organic molecules
en
dc.title
Aligning experimental and model perspectives on atmospheric nanoparticle growth
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
University of Helsinki, Finland
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dc.contributor.affiliation
University of Helsinki, Finland
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dc.contributor.affiliation
University of Helsinki, Finland
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dc.contributor.affiliation
University of Helsinki, Finland
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dc.contributor.affiliation
University of Helsinki, Finland
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dc.relation.grantno
VRG22-003
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dc.type.category
Poster Presentation
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tuw.project.title
organic Aerosol Cityscape Atmosphere Interactions
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tuw.researchTopic.id
E4
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tuw.researchTopic.id
C6
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tuw.researchTopic.name
Environmental Monitoring and Climate Adaptation
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.value
50
-
tuw.researchTopic.value
50
-
tuw.linking
https://doi.org/10.5194/egusphere-egu24-7692
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tuw.publication.orgunit
E165-01-5 - Forschungsgruppe Physikalische Chemie von Aerosolpartikeln
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tuw.publisher.doi
10.5194/egusphere-egu24-7692
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tuw.author.orcid
0000-0003-1014-1360
-
tuw.author.orcid
0000-0002-6630-0896
-
tuw.author.orcid
0000-0001-9055-5330
-
tuw.author.orcid
0000-0002-5373-3537
-
tuw.author.orcid
0000-0003-0803-7337
-
tuw.author.orcid
0000-0002-8961-3393
-
tuw.author.orcid
0000-0002-0706-669X
-
tuw.author.orcid
0000-0003-3464-7825
-
tuw.author.orcid
0000-0002-1639-1187
-
tuw.event.name
European Geoscience Union General Assembly 2024
en
tuw.event.startdate
14-04-2024
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tuw.event.enddate
19-04-2024
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
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tuw.event.place
Wien
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tuw.event.country
AT
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tuw.event.institution
European Geoscience Union
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tuw.event.presenter
Stolzenburg, Dominik Marco
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tuw.presentation.online
Online
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tuw.event.track
Single Track
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wb.sciencebranch
Chemie
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wb.sciencebranch
Meteorologie, Klimatologie
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1040
-
wb.sciencebranch.oefos
1052
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
50
-
wb.sciencebranch.value
25
-
wb.sciencebranch.value
25
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item.languageiso639-1
en
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item.openairetype
conference poster not in proceedings
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18co
-
crisitem.author.dept
E165-01-5 - Forschungsgruppe Physikalische Chemie von Aerosolpartikeln
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crisitem.author.dept
Fudan University
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crisitem.author.dept
Stockholm University
-
crisitem.author.dept
University of Helsinki
-
crisitem.author.dept
University of Helsinki
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crisitem.author.dept
Finnish Meteorological Institute
-
crisitem.author.dept
University of Helsinki
-
crisitem.author.dept
University of Helsinki
-
crisitem.author.dept
University of Helsinki
-
crisitem.author.orcid
0000-0003-1014-1360
-
crisitem.author.orcid
0000-0002-6630-0896
-
crisitem.author.orcid
0000-0001-9055-5330
-
crisitem.author.orcid
0000-0002-5373-3537
-
crisitem.author.orcid
0000-0003-0803-7337
-
crisitem.author.orcid
0000-0002-8961-3393
-
crisitem.author.orcid
0000-0002-0706-669X
-
crisitem.author.orcid
0000-0003-3464-7825
-
crisitem.author.orcid
0000-0002-1639-1187
-
crisitem.author.parentorg
E165-01 - Forschungsbereich Physikalische Chemie
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crisitem.project.funder
WWTF Wiener Wissenschafts-, Forschu und Technologiefonds
