Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest
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...
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Online Access: | https://doi.org/10.1088/1748-9326/ad10d5 https://doaj.org/article/dcb58e4ff3604e3d822798ce61d6219a |
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ftdoajarticles:oai:doaj.org/article:dcb58e4ff3604e3d822798ce61d6219a 2024-02-11T10:09:04+01:00 Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest Olga Garmash Ekaterina Ezhova Mikhail Arshinov Boris Belan Anastasiia Lampilahti Denis Davydov Meri Räty Diego Aliaga Rima Baalbaki Tommy Chan Federico Bianchi Veli-Matti Kerminen Tuukka Petäjä Markku Kulmala 2024-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/ad10d5 https://doaj.org/article/dcb58e4ff3604e3d822798ce61d6219a EN eng IOP Publishing https://doi.org/10.1088/1748-9326/ad10d5 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ad10d5 1748-9326 https://doaj.org/article/dcb58e4ff3604e3d822798ce61d6219a Environmental Research Letters, Vol 19, Iss 1, p 014047 (2024) secondary aerosol boreal forest atmospheric chemistry pollution BVOC Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2024 ftdoajarticles https://doi.org/10.1088/1748-9326/ad10d5 2024-01-14T01:49:37Z 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 Directory of Open Access Journals: DOAJ Articles Environmental Research Letters 19 1 014047 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
secondary aerosol boreal forest atmospheric chemistry pollution BVOC Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
secondary aerosol boreal forest atmospheric chemistry pollution BVOC Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Olga Garmash Ekaterina Ezhova Mikhail Arshinov Boris Belan Anastasiia Lampilahti Denis Davydov Meri Räty Diego Aliaga Rima Baalbaki Tommy Chan Federico Bianchi Veli-Matti Kerminen Tuukka Petäjä Markku Kulmala Heatwave reveals potential for enhanced aerosol formation in Siberian boreal forest |
topic_facet |
secondary aerosol boreal forest atmospheric chemistry pollution BVOC Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Olga Garmash Ekaterina Ezhova Mikhail Arshinov Boris Belan Anastasiia Lampilahti Denis Davydov Meri Räty Diego Aliaga Rima Baalbaki Tommy Chan Federico Bianchi Veli-Matti Kerminen Tuukka Petäjä Markku Kulmala |
author_facet |
Olga Garmash Ekaterina Ezhova Mikhail Arshinov Boris Belan Anastasiia Lampilahti Denis Davydov Meri Räty Diego Aliaga Rima Baalbaki Tommy Chan Federico Bianchi Veli-Matti Kerminen Tuukka Petäjä Markku Kulmala |
author_sort |
Olga Garmash |
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 |
https://doi.org/10.1088/1748-9326/ad10d5 https://doaj.org/article/dcb58e4ff3604e3d822798ce61d6219a |
genre |
taiga Siberia |
genre_facet |
taiga Siberia |
op_source |
Environmental Research Letters, Vol 19, Iss 1, p 014047 (2024) |
op_relation |
https://doi.org/10.1088/1748-9326/ad10d5 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ad10d5 1748-9326 https://doaj.org/article/dcb58e4ff3604e3d822798ce61d6219a |
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_ |
1790608782338818048 |