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Regionally sourced bioaerosols drive high-temperature ice nucleating particles in the Arctic

Author

Listed:
  • Gabriel Pereira Freitas

    (Stockholm University
    Stockolm University)

  • Kouji Adachi

    (Meteorological Research Institute)

  • Franz Conen

    (University of Basel)

  • Dominic Heslin-Rees

    (Stockholm University
    Stockolm University)

  • Radovan Krejci

    (Stockholm University
    Stockolm University)

  • Yutaka Tobo

    (National Institute of Polar Research
    Graduate University for Advanced Studies, SOKENDAI)

  • Karl Espen Yttri

    (The Climate and Environmental Research Institute NILU)

  • Paul Zieger

    (Stockholm University
    Stockolm University)

Abstract

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.

Suggested Citation

  • Gabriel Pereira Freitas & Kouji Adachi & Franz Conen & Dominic Heslin-Rees & Radovan Krejci & Yutaka Tobo & Karl Espen Yttri & Paul Zieger, 2023. "Regionally sourced bioaerosols drive high-temperature ice nucleating particles in the Arctic," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41696-7
    DOI: 10.1038/s41467-023-41696-7
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    References listed on IDEAS

    as
    1. Julia Schmale & Paul Zieger & Annica M. L. Ekman, 2021. "Aerosols in current and future Arctic climate," Nature Climate Change, Nature, vol. 11(2), pages 95-105, February.
    2. Jessie M. Creamean & Kevin Barry & Thomas C. J. Hill & Carson Hume & Paul J. DeMott & Matthew D. Shupe & Sandro Dahlke & Sascha Willmes & Julia Schmale & Ivo Beck & Clara J. M. Hoppe & Allison Fong & , 2022. "Annual cycle observations of aerosols capable of ice formation in central Arctic clouds," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    3. Theodore W. Wilson & Luis A. Ladino & Peter A. Alpert & Mark N. Breckels & Ian M. Brooks & Jo Browse & Susannah M. Burrows & Kenneth S. Carslaw & J. Alex Huffman & Christopher Judd & Wendy P. Kilthau , 2015. "A marine biogenic source of atmospheric ice-nucleating particles," Nature, Nature, vol. 525(7568), pages 234-238, September.
    4. Jessie M. Creamean & Kevin Barry & Thomas C. J. Hill & Carson Hume & Paul J. DeMott & Matthew D. Shupe & Sandro Dahlke & Sascha Willmes & Julia Schmale & Ivo Beck & Clara J. M. Hoppe & Allison Fong & , 2022. "Author Correction: Annual cycle observations of aerosols capable of ice formation in central Arctic clouds," Nature Communications, Nature, vol. 13(1), pages 1-1, December.
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