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Regionally sourced ...
Regionally sourced bioaerosols drive high-temperature ice nucleating particles in the Arctic
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- Pereira Freitas, Gabriel, 1993- (author)
- Stockholms universitet,Institutionen för miljövetenskap,Bolincentret för klimatforskning (tills m KTH & SMHI)
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Adachi, Kouji (author)
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Conen, Franz (author)
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- Heslin-Rees, Dominic, 1993- (author)
- Stockholms universitet,Institutionen för miljövetenskap,Bolincentret för klimatforskning (tills m KTH & SMHI)
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- Krejci, Radovan, 1970- (author)
- Stockholms universitet,Institutionen för miljövetenskap,Bolincentret för klimatforskning (tills m KTH & SMHI)
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Tobo, Yutaka (author)
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Yttri, Karl Espen (author)
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- Zieger, Paul, 1978- (author)
- Stockholms universitet,Institutionen för miljövetenskap,Bolincentret för klimatforskning (tills m KTH & SMHI)
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Nature Communications. - 2041-1723. ; 14
- Related links:
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https://doi.org/10.1...
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https://su.diva-port... (primary) (Raw object)
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Abstract
Subject headings
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- Primary biological aerosol particles (PBAP) play an important role in the climate system, facilitating the formation of ice within clouds, consequently PBAP may be important in understanding the rapidly changing Arctic. Within this work, we use single-particle fluorescence spectroscopy to identify and quantify PBAP at an Arctic mountain site, with transmission electronic microscopy analysis supporting the presence of PBAP. We find that PBAP concentrations range between 10−3–10−1 L−1 and peak in summer. Evidences suggest that the terrestrial Arctic biosphere is an important regional source of PBAP, given the high correlation to air temperature, surface albedo, surface vegetation and PBAP tracers. PBAP clearly correlate with high-temperature ice nucleating particles (INP) (>-15 °C), of which a high a fraction (>90%) are proteinaceous in summer, implying biological origin. These findings will contribute to an improved understanding of sources and characteristics of Arctic PBAP and their links to INP.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Pereira Freitas, ...
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Adachi, Kouji
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Conen, Franz
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Heslin-Rees, Dom ...
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Krejci, Radovan, ...
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Tobo, Yutaka
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show more...
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Yttri, Karl Espe ...
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Zieger, Paul, 19 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
- Articles in the publication
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Nature Communica ...
- By the university
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Stockholm University