Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest
Abstract Siberia is covered by 6 million km 2 of forest, which moderates climate as a carbon sink and a source of aerosol particles causing negative radiative effect. Aerosol particles in boreal forests frequently form via gas-to-particle conversion, known as new particle formation (NPF). Compared t...
Published in: | Environmental Research Letters |
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Online Access: | http://dx.doi.org/10.1088/1748-9326/ad10d5 https://iopscience.iop.org/article/10.1088/1748-9326/ad10d5 https://iopscience.iop.org/article/10.1088/1748-9326/ad10d5/pdf |
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crioppubl:10.1088/1748-9326/ad10d5 2024-06-02T08:15:09+00:00 Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest Garmash, Olga Ezhova, Ekaterina Arshinov, Mikhail Belan, Boris Lampilahti, Anastasiia Davydov, Denis Räty, Meri Aliaga, Diego Baalbaki, Rima Chan, Tommy Bianchi, Federico Kerminen, Veli-Matti Petäjä, Tuukka Kulmala, Markku 1.European Research Council 2. Academy of Finland 3.Belmont Forum via Academy of Finland 4. Jane ja Aatos Erkon Säätiö 5. H2020 European Research Council 6. Ministry of Education and Science of the Russian Federation 2024 http://dx.doi.org/10.1088/1748-9326/ad10d5 https://iopscience.iop.org/article/10.1088/1748-9326/ad10d5 https://iopscience.iop.org/article/10.1088/1748-9326/ad10d5/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 19, issue 1, page 014047 ISSN 1748-9326 journal-article 2024 crioppubl https://doi.org/10.1088/1748-9326/ad10d5 2024-05-07T14:01:29Z Abstract Siberia is covered by 6 million km 2 of forest, which moderates climate as a carbon sink and a source of aerosol particles causing negative radiative effect. Aerosol particles in boreal forests frequently form via gas-to-particle conversion, known as new particle formation (NPF). Compared to boreal sites at similar latitudes, NPF was reported to occur less often in the Siberian forest. However, factors controlling NPF in Siberia remain unknown. Our results suggest that the combination of biogenic and anthropogenic contributions caused unexpectedly high monthly NPF frequency (50%) at the observatory Fonovaya in the West Siberian taiga during the Siberian 2020 heatwave. High frequency was due to early spring photosynthetic recovery, which boosted biogenic emissions into polluted air masses carrying SO 2 . After mid-April, high temperatures and cleaner air masses led to less frequent (15%) and less intense NPF despite the increased emissions of natural organic vapors and ammonia. Furthermore, the contrast between the two spring periods was seen in cluster composition, particle-forming vapors (two times difference in sulfuric acid concentration), particle formation ( J 3 , 2.2 and 0.4 cm −3 s −1 ) and growth rates (GR 2−3 , 1.7 and 0.6 nm h −1 ). Given the strong warming trend, our results suggest that within 25‒30 years, the monthly NPF frequency during early spring in the West Siberian taiga can reach 40%–60%, as in the European boreal sites. Article in Journal/Newspaper taiga Siberia IOP Publishing Environmental Research Letters 19 1 014047 |
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Abstract Siberia is covered by 6 million km 2 of forest, which moderates climate as a carbon sink and a source of aerosol particles causing negative radiative effect. Aerosol particles in boreal forests frequently form via gas-to-particle conversion, known as new particle formation (NPF). Compared to boreal sites at similar latitudes, NPF was reported to occur less often in the Siberian forest. However, factors controlling NPF in Siberia remain unknown. Our results suggest that the combination of biogenic and anthropogenic contributions caused unexpectedly high monthly NPF frequency (50%) at the observatory Fonovaya in the West Siberian taiga during the Siberian 2020 heatwave. High frequency was due to early spring photosynthetic recovery, which boosted biogenic emissions into polluted air masses carrying SO 2 . After mid-April, high temperatures and cleaner air masses led to less frequent (15%) and less intense NPF despite the increased emissions of natural organic vapors and ammonia. Furthermore, the contrast between the two spring periods was seen in cluster composition, particle-forming vapors (two times difference in sulfuric acid concentration), particle formation ( J 3 , 2.2 and 0.4 cm −3 s −1 ) and growth rates (GR 2−3 , 1.7 and 0.6 nm h −1 ). Given the strong warming trend, our results suggest that within 25‒30 years, the monthly NPF frequency during early spring in the West Siberian taiga can reach 40%–60%, as in the European boreal sites. |
author2 |
1.European Research Council 2. Academy of Finland 3.Belmont Forum via Academy of Finland 4. Jane ja Aatos Erkon Säätiö 5. H2020 European Research Council 6. Ministry of Education and Science of the Russian Federation |
format |
Article in Journal/Newspaper |
author |
Garmash, Olga Ezhova, Ekaterina Arshinov, Mikhail Belan, Boris Lampilahti, Anastasiia Davydov, Denis Räty, Meri Aliaga, Diego Baalbaki, Rima Chan, Tommy Bianchi, Federico Kerminen, Veli-Matti Petäjä, Tuukka Kulmala, Markku |
spellingShingle |
Garmash, Olga Ezhova, Ekaterina Arshinov, Mikhail Belan, Boris Lampilahti, Anastasiia Davydov, Denis Räty, Meri Aliaga, Diego Baalbaki, Rima Chan, Tommy Bianchi, Federico Kerminen, Veli-Matti Petäjä, Tuukka Kulmala, Markku Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
author_facet |
Garmash, Olga Ezhova, Ekaterina Arshinov, Mikhail Belan, Boris Lampilahti, Anastasiia Davydov, Denis Räty, Meri Aliaga, Diego Baalbaki, Rima Chan, Tommy Bianchi, Federico Kerminen, Veli-Matti Petäjä, Tuukka Kulmala, Markku |
author_sort |
Garmash, Olga |
title |
Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
title_short |
Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
title_full |
Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
title_fullStr |
Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
title_full_unstemmed |
Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
title_sort |
heatwave reveals potential for enhanced aerosol formation in siberian boreal forest |
publisher |
IOP Publishing |
publishDate |
2024 |
url |
http://dx.doi.org/10.1088/1748-9326/ad10d5 https://iopscience.iop.org/article/10.1088/1748-9326/ad10d5 https://iopscience.iop.org/article/10.1088/1748-9326/ad10d5/pdf |
genre |
taiga Siberia |
genre_facet |
taiga Siberia |
op_source |
Environmental Research Letters volume 19, issue 1, page 014047 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ad10d5 |
container_title |
Environmental Research Letters |
container_volume |
19 |
container_issue |
1 |
container_start_page |
014047 |
_version_ |
1800739243200348160 |