Submicron Organic Aerosol Types in the Summertime Arctic: Mixing State, Geographic Distribution, and Drivers

Submicron Organic Aerosol Types in the Summertime Arctic: Mixing State, Geographic Distribution, and Drivers

During the 2017 summertime Arctic cruise observation campaigns, we measured over 290,000 individual submicron particles and clustered them into two inorganic classes (dominated by sea salt, accounting for 38.6% by number fraction) and five organic classes (dominated by natural and anthropogenic orga...

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Veröffentlicht in:Journal of geophysical research. Atmospheres 2024-09, Vol.129 (17), p.n/a
Hauptverfasser: Su, Bojiang, Zhang, Guohua, Song, Congbo, Liang, Yue, Wang, Longqun, Li, Lei, Zhou, Zhen, Yan, Jinpei, Wang, Xinming, Bi, Xinhui
Format: Artikel
Sprache:eng
Schlagworte:
Aerosols
Anthropogenic factors
Arctic expeditions
Arctic observations
Atmospheric processes
Bubble bursting
Calcium
Calcium sulfate
Climate effects
Combustion
Cruises
driver
geographic distribution
Geographical distribution
High temperature
Ice floes
individual organic aerosol particles
Low wind speeds
Machine learning
Mass spectrometry
mixing state
Multiship expeditions
Oceans
Pack ice
Research vessels
Sea ice
Sea ice leads
Sulfates
Summer
summertime high Arctic
Wind
Wind speed
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Zusammenfassung:During the 2017 summertime Arctic cruise observation campaigns, we measured over 290,000 individual submicron particles and clustered them into two inorganic classes (dominated by sea salt, accounting for 38.6% by number fraction) and five organic classes (dominated by natural and anthropogenic organics, 61.4%), presenting a distinct difference in geographic distribution. In the high Arctic and marginal ice zone (81.1–84.6°N) compared with the low Arctic (Chukchi Sea, Svalbard, and Iceland,
ISSN:2169-897X
2169-8996
DOI:10.1029/2024JD041061