Evidence of new particle formation within Etna and Stromboli volcanic plumes and its parameterization from airborne in-situ measurements

Maher Sahyoun, Evelyn Freney, Joel Brito, Jonathan Duplissy, Mathieu Gouhier, Aurélie Colomb, Regis Dupuy, Thierry Bourianne, John B. Nowak, Chao Yan, Tuukka Petäjä, Markku Kulmala, Alfons Schwarzenboeck, Céline Planche, Karine Sellegri

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Abstract Volcanic emissions can significantly affect the Earth's radiation budget by emitting aerosol particles and gas-phase species that can result in the new particle formation (NPF). These particles can scatter solar radiation or modify cloud properties, with consequences on health, weather, and climate. To our knowledge, this is the first dedicated study detailing how gas-phase precursors emitted from volcanic plumes can influence the NPF. A series of airborne measurements were performed around the Etna and Stromboli volcanoes within the framework of the CLerVolc and STRAP projects. The ATR-42 aircraft was equipped with a range of instrumentation allowing the measurement of particle number concentration in diameter range above 2.5 nm, and gaseous species to investigate the aerosol dynamics and the processes governing the NPF and their growth within the volcanic plumes. We demonstrate that NPF occurs within the volcanic plumes in the Free Troposphere (FT) and Boundary Layer (BL). Typically, the NPF events were more pronounced in the FT, where the condensational sink was up to two orders of magnitude smaller and the temperature was ~20°C lower than in the BL. Within the passive volcanic plume, the concentration of sulfur dioxide, sulfuric acid, and N2.5 were as high as 92 ppbV, 5.65?108 and 2.4?105 cm?3, respectively. Using these measurements, we propose a new parameterization for NPF rate (J2.5) within the passive volcanic plume in the FT. These results can be incorporated into mesoscale models to better assess the impact of the particle formed by natural processes, i.e. volcanic plumes, on climate.
Original languageEnglish
JournalJournal of Geophysical Research : Atmospheres
Volume124
Issue number10
Pages (from-to)5650-5668
Number of pages19
ISSN2169-897X
DOIs
Publication statusPublished - 27 May 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • new particle formation
  • volcanic plume
  • volcanic secondary aerosols
  • Etna and Stromboli
  • aerosol formation rate parameterization
  • sulfuric acid
  • CLOUD CONDENSATION NUCLEI
  • SULFURIC-ACID
  • ATMOSPHERIC NUCLEATION
  • KILAUEA VOLCANO
  • AEROSOL
  • EMISSIONS
  • GROWTH
  • GAS
  • ASH
  • CHEMISTRY
  • 114 Physical sciences
  • 116 Chemical sciences

Cite this

Sahyoun, Maher ; Freney, Evelyn ; Brito, Joel ; Duplissy, Jonathan ; Gouhier, Mathieu ; Colomb, Aurélie ; Dupuy, Regis ; Bourianne, Thierry ; Nowak, John B. ; Yan, Chao ; Petäjä, Tuukka ; Kulmala, Markku ; Schwarzenboeck, Alfons ; Planche, Céline ; Sellegri, Karine. / Evidence of new particle formation within Etna and Stromboli volcanic plumes and its parameterization from airborne in-situ measurements. In: Journal of Geophysical Research : Atmospheres. 2019 ; Vol. 124, No. 10. pp. 5650-5668.
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abstract = "Abstract Volcanic emissions can significantly affect the Earth's radiation budget by emitting aerosol particles and gas-phase species that can result in the new particle formation (NPF). These particles can scatter solar radiation or modify cloud properties, with consequences on health, weather, and climate. To our knowledge, this is the first dedicated study detailing how gas-phase precursors emitted from volcanic plumes can influence the NPF. A series of airborne measurements were performed around the Etna and Stromboli volcanoes within the framework of the CLerVolc and STRAP projects. The ATR-42 aircraft was equipped with a range of instrumentation allowing the measurement of particle number concentration in diameter range above 2.5 nm, and gaseous species to investigate the aerosol dynamics and the processes governing the NPF and their growth within the volcanic plumes. We demonstrate that NPF occurs within the volcanic plumes in the Free Troposphere (FT) and Boundary Layer (BL). Typically, the NPF events were more pronounced in the FT, where the condensational sink was up to two orders of magnitude smaller and the temperature was ~20°C lower than in the BL. Within the passive volcanic plume, the concentration of sulfur dioxide, sulfuric acid, and N2.5 were as high as 92 ppbV, 5.65?108 and 2.4?105 cm?3, respectively. Using these measurements, we propose a new parameterization for NPF rate (J2.5) within the passive volcanic plume in the FT. These results can be incorporated into mesoscale models to better assess the impact of the particle formed by natural processes, i.e. volcanic plumes, on climate.",
keywords = "New particle formation, volcanic plume, volcanic secondary aerosols, Etna and Stromboli, aerosol formation rate parameterization, sulfuric acid, new particle formation, volcanic plume, volcanic secondary aerosols, Etna and Stromboli, aerosol formation rate parameterization, sulfuric acid, CLOUD CONDENSATION NUCLEI, SULFURIC-ACID, ATMOSPHERIC NUCLEATION, KILAUEA VOLCANO, AEROSOL, EMISSIONS, GROWTH, GAS, ASH, CHEMISTRY, 114 Physical sciences, 116 Chemical sciences",
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Sahyoun, M, Freney, E, Brito, J, Duplissy, J, Gouhier, M, Colomb, A, Dupuy, R, Bourianne, T, Nowak, JB, Yan, C, Petäjä, T, Kulmala, M, Schwarzenboeck, A, Planche, C & Sellegri, K 2019, 'Evidence of new particle formation within Etna and Stromboli volcanic plumes and its parameterization from airborne in-situ measurements' Journal of Geophysical Research : Atmospheres, vol. 124, no. 10, pp. 5650-5668. https://doi.org/10.1029/2018JD028882

Evidence of new particle formation within Etna and Stromboli volcanic plumes and its parameterization from airborne in-situ measurements. / Sahyoun, Maher; Freney, Evelyn; Brito, Joel; Duplissy, Jonathan; Gouhier, Mathieu; Colomb, Aurélie; Dupuy, Regis; Bourianne, Thierry; Nowak, John B.; Yan, Chao; Petäjä, Tuukka; Kulmala, Markku; Schwarzenboeck, Alfons; Planche, Céline; Sellegri, Karine.

In: Journal of Geophysical Research : Atmospheres, Vol. 124, No. 10, 27.05.2019, p. 5650-5668.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Evidence of new particle formation within Etna and Stromboli volcanic plumes and its parameterization from airborne in-situ measurements

AU - Sahyoun, Maher

AU - Freney, Evelyn

AU - Brito, Joel

AU - Duplissy, Jonathan

AU - Gouhier, Mathieu

AU - Colomb, Aurélie

AU - Dupuy, Regis

AU - Bourianne, Thierry

AU - Nowak, John B.

AU - Yan, Chao

AU - Petäjä, Tuukka

AU - Kulmala, Markku

AU - Schwarzenboeck, Alfons

AU - Planche, Céline

AU - Sellegri, Karine

N1 - doi: 10.1029/2018JD028882

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N2 - Abstract Volcanic emissions can significantly affect the Earth's radiation budget by emitting aerosol particles and gas-phase species that can result in the new particle formation (NPF). These particles can scatter solar radiation or modify cloud properties, with consequences on health, weather, and climate. To our knowledge, this is the first dedicated study detailing how gas-phase precursors emitted from volcanic plumes can influence the NPF. A series of airborne measurements were performed around the Etna and Stromboli volcanoes within the framework of the CLerVolc and STRAP projects. The ATR-42 aircraft was equipped with a range of instrumentation allowing the measurement of particle number concentration in diameter range above 2.5 nm, and gaseous species to investigate the aerosol dynamics and the processes governing the NPF and their growth within the volcanic plumes. We demonstrate that NPF occurs within the volcanic plumes in the Free Troposphere (FT) and Boundary Layer (BL). Typically, the NPF events were more pronounced in the FT, where the condensational sink was up to two orders of magnitude smaller and the temperature was ~20°C lower than in the BL. Within the passive volcanic plume, the concentration of sulfur dioxide, sulfuric acid, and N2.5 were as high as 92 ppbV, 5.65?108 and 2.4?105 cm?3, respectively. Using these measurements, we propose a new parameterization for NPF rate (J2.5) within the passive volcanic plume in the FT. These results can be incorporated into mesoscale models to better assess the impact of the particle formed by natural processes, i.e. volcanic plumes, on climate.

AB - Abstract Volcanic emissions can significantly affect the Earth's radiation budget by emitting aerosol particles and gas-phase species that can result in the new particle formation (NPF). These particles can scatter solar radiation or modify cloud properties, with consequences on health, weather, and climate. To our knowledge, this is the first dedicated study detailing how gas-phase precursors emitted from volcanic plumes can influence the NPF. A series of airborne measurements were performed around the Etna and Stromboli volcanoes within the framework of the CLerVolc and STRAP projects. The ATR-42 aircraft was equipped with a range of instrumentation allowing the measurement of particle number concentration in diameter range above 2.5 nm, and gaseous species to investigate the aerosol dynamics and the processes governing the NPF and their growth within the volcanic plumes. We demonstrate that NPF occurs within the volcanic plumes in the Free Troposphere (FT) and Boundary Layer (BL). Typically, the NPF events were more pronounced in the FT, where the condensational sink was up to two orders of magnitude smaller and the temperature was ~20°C lower than in the BL. Within the passive volcanic plume, the concentration of sulfur dioxide, sulfuric acid, and N2.5 were as high as 92 ppbV, 5.65?108 and 2.4?105 cm?3, respectively. Using these measurements, we propose a new parameterization for NPF rate (J2.5) within the passive volcanic plume in the FT. These results can be incorporated into mesoscale models to better assess the impact of the particle formed by natural processes, i.e. volcanic plumes, on climate.

KW - New particle formation

KW - volcanic plume

KW - volcanic secondary aerosols

KW - Etna and Stromboli

KW - aerosol formation rate parameterization

KW - sulfuric acid

KW - new particle formation

KW - volcanic plume

KW - volcanic secondary aerosols

KW - Etna and Stromboli

KW - aerosol formation rate parameterization

KW - sulfuric acid

KW - CLOUD CONDENSATION NUCLEI

KW - SULFURIC-ACID

KW - ATMOSPHERIC NUCLEATION

KW - KILAUEA VOLCANO

KW - AEROSOL

KW - EMISSIONS

KW - GROWTH

KW - GAS

KW - ASH

KW - CHEMISTRY

KW - 114 Physical sciences

KW - 116 Chemical sciences

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DO - 10.1029/2018JD028882

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JF - Journal of Geophysical Research : Atmospheres

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