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Adsorptive uptake o...
Adsorptive uptake of water by semisolid secondary organic aerosols
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Pajunoja, Aki (author)
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Lambe, Andrew T. (author)
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Hakala, Jani (author)
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- Rastak, Narges (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi
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Cummings, Molly J. (author)
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Brogan, James F. (author)
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Hao, Liqing (author)
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Paramonov, Mikhail (author)
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Hong, Juan (author)
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Prisle, Nonne L. (author)
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Malila, Jussi (author)
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Romakkaniemi, Sami (author)
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Lehtinen, Kari E. J. (author)
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Laaksonen, Ari (author)
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Kulmala, Markku (author)
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Massoli, Paola (author)
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Onasch, Timothy B. (author)
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Donahue, Neil M. (author)
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- Riipinen, Ilona (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi,Carnegie Mellon University, USA
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Davidovits, Paul (author)
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Worsnop, Douglas R. (author)
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Petaja, Tuukka (author)
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Virtanen, Annele (author)
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(creator_code:org_t)
- 2015
- 2015
- English.
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In: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 42:8, s. 3063-3068
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Aerosol climate effects are intimately tied to interactions with water. Here we combine hygroscopicity measurements with direct observations about the phase of secondary organic aerosol (SOA) particles to show that water uptake by slightly oxygenated SOA is an adsorption-dominated process under subsaturated conditions, where low solubility inhibits water uptake until the humidity is high enough for dissolution to occur. This reconciles reported discrepancies in previous hygroscopicity closure studies. We demonstrate that the difference in SOA hygroscopic behavior in subsaturated and supersaturated conditions can lead to an effect up to about 30% in the direct aerosol forcinghighlighting the need to implement correct descriptions of these processes in atmospheric models. Obtaining closure across the water saturation point is therefore a critical issue for accurate climate modeling.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- SOA
- hygroscopicity
- adsorption
- solubility
- aerosol
- miljövetenskap
- Environmental Sciences
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Pajunoja, Aki
-
Lambe, Andrew T.
-
Hakala, Jani
-
Rastak, Narges
-
Cummings, Molly ...
-
Brogan, James F.
-
show more...
-
Hao, Liqing
-
Paramonov, Mikha ...
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Hong, Juan
-
Prisle, Nonne L.
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Malila, Jussi
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Romakkaniemi, Sa ...
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Lehtinen, Kari E ...
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Laaksonen, Ari
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Kulmala, Markku
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Massoli, Paola
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Onasch, Timothy ...
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Donahue, Neil M.
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Riipinen, Ilona
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Davidovits, Paul
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Worsnop, Douglas ...
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Petaja, Tuukka
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Virtanen, Annele
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
- Articles in the publication
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Geophysical Rese ...
- By the university
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Stockholm University