FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4238577967> ?p ?o ?g. }

• W4238577967 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Collocated measurements using a condensation particle counter, differential mobility particle sizer and cloud condensation nuclei counter were realised in parallel in central Budapest from 15 April 2019 to 14 April 2020 to gain insight into the cloud activation properties of urban aerosol particles. The median total particle number concentration was 10.1 <span class=inline-formula>×</span> 10<span class=inline-formula>³</span> cm<span class=inline-formula>^−3</span>. The median concentrations of cloud condensation nuclei (CCN) at water vapour supersaturation (<span class=inline-formula><i>S</i></span>) values of 0.1 %, 0.2 %, 0.3 %, 0.5 % and 1.0 % were 0.59, 1.09, 1.39, 1.80 and 2.5 <span class=inline-formula>×</span> 10<span class=inline-formula>³</span> cm<span class=inline-formula>^−3</span>, respectively. The CCN concentrations represented 7–27 % of all particles. The CCN concentrations were considerably larger but the activation fractions were systematically substantially smaller than observed in regional or remote locations. The effective critical dry particle diameters (<span class=inline-formula><i>d</i>_c,eff</span>) were derived utilising the CCN concentrations and particle number size distributions. Their median values at the five supersaturation values considered were 207, 149, 126, 105 and 80 nm, respectively; all of these diameters were positioned within the accumulation mode of the typical particle number size distribution. Their frequency distributions revealed a single peak for which the geometric standard deviation increased monotonically with <span class=inline-formula><i>S</i></span>. This broadening indicated high time variability in the activating properties of smaller particles. The frequency distributions also showed fine structure, with several compositional elements that seemed to reveal a consistent or monotonical tendency with <span class=inline-formula><i>S</i></span>. The relationships between the critical <span class=inline-formula><i>S</i></span> and <span class=inline-formula><i>d</i>_c,eff</span> suggest that urban aerosol particles in Budapest with diameters larger than approximately 130 nm showed similar hydroscopicity to corresponding continental aerosol particles, whereas smaller particles in Budapest were less hygroscopic than corresponding continental aerosol particles. Only modest seasonal cycling in CCN concentrations and activation fractions was seen, and only for large <span class=inline-formula><i>S</i></span> values. This cycling likely reflects changes in the number concentration, chemical composition and mixing state of the particles. The seasonal dependencies of <span class=inline-formula><i>d</i>_c,eff</span> were featureless, indicating that the droplet activation properties of the urban particles remained more or less the same throughout the year. This is again different from what is seen in non-urban locations. Hygroscopicity parameters (<span class=inline-formula><i>κ</i></span> values) were computed without determining the time-dependent chemical composition of the particles. The median values for <span class=inline-formula><i>κ</i></span> were 0.15, 0.10, 0.07, 0.04 and 0.02, respectively, at the five supersaturation values considered. The averages suggested that the larger particles were considerably more hygroscopic than the smaller particles. We found that the <span class=inline-formula><i>κ</i></span> values for the urban aerosol were substantially smaller than those previously reported for aerosols in regional or remote locations. All of these characteristics can be linked to the specific source composition of particles in cities. The relatively large variability in the hygroscopicity parameters for a given <span class=inline-formula><i>S</i></span> emphasises that the individual values represent the CCN population in ambient air while the average hygroscopicity parameter mainly corresponds to particles with sizes close to the effective critical dry particle diameter." @default.
• W4238577967 created "2022-05-12" @default.
• W4238577967 creator A5057828956 @default.
• W4238577967 date "2021-06-16" @default.
• W4238577967 modified "2023-09-27" @default.
• W4238577967 title "Reply on RC2" @default.
• W4238577967 doi "https://doi.org/10.5194/acp-2021-305-ac2" @default.
• W4238577967 hasPublicationYear "2021" @default.
• W4238577967 type Work @default.
• W4238577967 citedByCount "0" @default.
• W4238577967 crossrefType "peer-review" @default.
• W4238577967 hasAuthorship W4238577967A5057828956 @default.
• W4238577967 hasBestOaLocation W42385779671 @default.
• W4238577967 hasConcept C108036090 @default.
• W4238577967 hasConcept C113196181 @default.
• W4238577967 hasConcept C121332964 @default.
• W4238577967 hasConcept C127413603 @default.
• W4238577967 hasConcept C147176958 @default.
• W4238577967 hasConcept C147789679 @default.
• W4238577967 hasConcept C153294291 @default.
• W4238577967 hasConcept C185544564 @default.
• W4238577967 hasConcept C185592680 @default.
• W4238577967 hasConcept C187530423 @default.
• W4238577967 hasConcept C200093464 @default.
• W4238577967 hasConcept C200447597 @default.
• W4238577967 hasConcept C2778753569 @default.
• W4238577967 hasConcept C2779345167 @default.
• W4238577967 hasConcept C2988516024 @default.
• W4238577967 hasConcept C33332676 @default.
• W4238577967 hasConcept C43617362 @default.
• W4238577967 hasConcept C71924100 @default.
• W4238577967 hasConcept C74909509 @default.
• W4238577967 hasConcept C97355855 @default.
• W4238577967 hasConceptScore W4238577967C108036090 @default.
• W4238577967 hasConceptScore W4238577967C113196181 @default.
• W4238577967 hasConceptScore W4238577967C121332964 @default.
• W4238577967 hasConceptScore W4238577967C127413603 @default.
• W4238577967 hasConceptScore W4238577967C147176958 @default.
• W4238577967 hasConceptScore W4238577967C147789679 @default.
• W4238577967 hasConceptScore W4238577967C153294291 @default.
• W4238577967 hasConceptScore W4238577967C185544564 @default.
• W4238577967 hasConceptScore W4238577967C185592680 @default.
• W4238577967 hasConceptScore W4238577967C187530423 @default.
• W4238577967 hasConceptScore W4238577967C200093464 @default.
• W4238577967 hasConceptScore W4238577967C200447597 @default.
• W4238577967 hasConceptScore W4238577967C2778753569 @default.
• W4238577967 hasConceptScore W4238577967C2779345167 @default.
• W4238577967 hasConceptScore W4238577967C2988516024 @default.
• W4238577967 hasConceptScore W4238577967C33332676 @default.
• W4238577967 hasConceptScore W4238577967C43617362 @default.
• W4238577967 hasConceptScore W4238577967C71924100 @default.
• W4238577967 hasConceptScore W4238577967C74909509 @default.
• W4238577967 hasConceptScore W4238577967C97355855 @default.
• W4238577967 hasLocation W42385779671 @default.
• W4238577967 hasOpenAccess W4238577967 @default.
• W4238577967 hasPrimaryLocation W42385779671 @default.
• W4238577967 hasRelatedWork W1988176798 @default.
• W4238577967 hasRelatedWork W2047832091 @default.
• W4238577967 hasRelatedWork W2092874025 @default.
• W4238577967 hasRelatedWork W2605570582 @default.
• W4238577967 hasRelatedWork W3004345229 @default.
• W4238577967 hasRelatedWork W4224442553 @default.
• W4238577967 hasRelatedWork W4237639398 @default.
• W4238577967 hasRelatedWork W4251445160 @default.
• W4238577967 hasRelatedWork W4321500893 @default.
• W4238577967 hasRelatedWork W2910548484 @default.
• W4238577967 isParatext "false" @default.
• W4238577967 isRetracted "false" @default.
• W4238577967 workType "peer-review" @default.