FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4220856831> ?p ?o ?g. }

• W4220856831 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Understanding chemical processes leading to the formation of atmospheric aerosol particles is crucial to improve our capabilities in predicting the future climate. However, those mechanisms are still inadequately characterized, especially in polar regions. In this study, we report observations of neutral and charged aerosol precursor molecules and chemical cluster composition (qualitatively and quantitatively), as well as air ions and aerosol particle number concentrations and size distributions from the Marambio research station (64<span class=inline-formula>^∘</span>15<span class=inline-formula>^′</span> S, 56<span class=inline-formula>^∘</span>38<span class=inline-formula>^′</span> W), located north of the Antarctic Peninsula. We conducted measurements during the austral summer, between 15 January and 25 February 2018. The scope of this study is to characterize new particle formation (NPF) event parameters and connect our observations of gas-phase compounds with the formation of secondary aerosols to resolve the nucleation mechanisms at the molecular scale. NPF occurred on 40 % of measurement days. All NPF events were observed during days with high solar radiation, mostly with above-freezing temperatures and with low relative humidity. The averaged formation rate for 3 nm particles (<span class=inline-formula><i>J</i>₃</span>) was 0.686 cm<span class=inline-formula>^−3</span> s<span class=inline-formula>^−1</span>, and the average particle growth rate (GR<span class=inline-formula>_{3.8–12 nm}</span>) was 4.2 nm h<span class=inline-formula>^−1</span>. Analysis of neutral aerosol precursor molecules showed measurable concentrations of iodic acid (IA), sulfuric acid (SA), and methane sulfonic acid (MSA) throughout the entire measurement period with significant increase in MSA and SA concentrations during NPF events. We highlight SA as a key contributor to NPF processes, while IA and MSA likely only contribute to particle growth. Mechanistically, anion clusters containing ammonia and/or dimethylamine (DMA) and SA were identified, suggesting significant concentration of ammonia and DMA as well. Those species are likely contributing to NPF events since SA alone is not sufficient to explain observed nucleation rates. Here, we provide evidence of the marine origin of the measured chemical precursors and discuss their potential contribution to the aerosol phase." @default.
• W4220856831 created "2022-04-03" @default.
• W4220856831 creator A5000361678 @default.
• W4220856831 date "2022-03-21" @default.
• W4220856831 modified "2023-09-30" @default.
• W4220856831 title "Comment on acp-2021-1063" @default.
• W4220856831 doi "https://doi.org/10.5194/acp-2021-1063-rc2" @default.
• W4220856831 hasPublicationYear "2022" @default.
• W4220856831 type Work @default.
• W4220856831 citedByCount "0" @default.
• W4220856831 crossrefType "peer-review" @default.
• W4220856831 hasAuthorship W4220856831A5000361678 @default.
• W4220856831 hasBestOaLocation W42208568311 @default.
• W4220856831 hasConcept C121332964 @default.
• W4220856831 hasConcept C127413603 @default.
• W4220856831 hasConcept C147176958 @default.
• W4220856831 hasConcept C153294291 @default.
• W4220856831 hasConcept C158960510 @default.
• W4220856831 hasConcept C185592680 @default.
• W4220856831 hasConcept C2778753569 @default.
• W4220856831 hasConcept C2779345167 @default.
• W4220856831 hasConcept C2988516024 @default.
• W4220856831 hasConcept C61048295 @default.
• W4220856831 hasConcept C65440619 @default.
• W4220856831 hasConcept C71924100 @default.
• W4220856831 hasConcept C74909509 @default.
• W4220856831 hasConcept C97355855 @default.
• W4220856831 hasConceptScore W4220856831C121332964 @default.
• W4220856831 hasConceptScore W4220856831C127413603 @default.
• W4220856831 hasConceptScore W4220856831C147176958 @default.
• W4220856831 hasConceptScore W4220856831C153294291 @default.
• W4220856831 hasConceptScore W4220856831C158960510 @default.
• W4220856831 hasConceptScore W4220856831C185592680 @default.
• W4220856831 hasConceptScore W4220856831C2778753569 @default.
• W4220856831 hasConceptScore W4220856831C2779345167 @default.
• W4220856831 hasConceptScore W4220856831C2988516024 @default.
• W4220856831 hasConceptScore W4220856831C61048295 @default.
• W4220856831 hasConceptScore W4220856831C65440619 @default.
• W4220856831 hasConceptScore W4220856831C71924100 @default.
• W4220856831 hasConceptScore W4220856831C74909509 @default.
• W4220856831 hasConceptScore W4220856831C97355855 @default.
• W4220856831 hasLocation W42208568311 @default.
• W4220856831 hasOpenAccess W4220856831 @default.
• W4220856831 hasPrimaryLocation W42208568311 @default.
• W4220856831 hasRelatedWork W1980307066 @default.
• W4220856831 hasRelatedWork W1993459287 @default.
• W4220856831 hasRelatedWork W2004620840 @default.
• W4220856831 hasRelatedWork W2748952813 @default.
• W4220856831 hasRelatedWork W3022792201 @default.
• W4220856831 hasRelatedWork W3156131268 @default.
• W4220856831 hasRelatedWork W3175124630 @default.
• W4220856831 hasRelatedWork W4243521909 @default.
• W4220856831 hasRelatedWork W89569438 @default.
• W4220856831 hasRelatedWork W53623772 @default.
• W4220856831 isParatext "false" @default.
• W4220856831 isRetracted "false" @default.
• W4220856831 workType "peer-review" @default.