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Naslov:Aerosol spectral optical properties in the Paris urban area and its peri-urban and forested surroundings during summer 2022 from ACROSS surface observations
Avtorji:ID Di Antonio, Ludovico (Avtor)
ID Di Biagio, Claudia (Avtor)
ID Formenti, Paola (Avtor)
ID Gratien, Aline (Avtor)
ID Michoud, Vincent (Avtor)
ID Cantrell, Christopher (Avtor)
ID Bauville, Astrid (Avtor)
ID Bergé, Antonin (Avtor)
ID Cazaunau, Mathieu (Avtor)
ID Močnik, Griša (Avtor)
Datoteke:URL https://acp.copernicus.org/articles/25/3161/2025/
 
.pdf acp-25-3161-2025.pdf (8,42 MB)
MD5: 19120882488115108364D6E8B7C00C5C
 
URL https://acp.copernicus.org/articles/25/3161/2025/acp-25-3161-2025.pdf
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Abstract. The complex refractive index (CRI; n−ik) and the single scattering albedo (SSA) are key parameters driving the aerosol direct radiative effect. Their spatial, temporal, and spectral variabilities in anthropogenic–biogenic mixed environments are poorly understood. In this study, we retrieve the spectral CRI and SSA (370–950 nm wavelength range) from in situ surface optical measurements and the number size distribution of submicron aerosols at three sites in the greater Paris area, representative of the urban city, as well as its peri-urban and forested rural environments. Measurements were taken as part of the ACROSS (Atmospheric Chemistry of the Suburban Forest) campaign in June–July 2022 under diversified conditions: (1) two heatwaves leading to high aerosol levels, (2) an intermediate period with low aerosol concentrations, and (3) an episode of long-range-transported fire emissions. The retrieved CRI and SSA exhibit an urban-to-rural gradient, whose intensity is modulated by the weather conditions. A full campaign average CRI of 1.41−0.037i (urban), 1.52−0.038i (peri-urban), and 1.50−0.025i (rural) is retrieved. The imaginary part of the CRI (k) increases and the SSA decreases at the peri-urban and forest sites when exposed to the influence of the Paris urban plume. Values of k > 0.1 and SSA < 0.6 at 520 nm are related to a black carbon mass fraction larger than 10 %. Organic aerosols are found to contribute to more than 50 % of the aerosol mass and up to 10 % (urban), 17 % (peri-urban), and 22 % (forest) of the aerosol absorption coefficient at 370 nm. A k value of 0.022 (370 nm) was measured at the urban site for the long-range-transported fire episode.
Ključne besede:aerosol optical properties, aerosol refractive index, absorption, air pollution
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2025
Leto izida:2025
Št. strani:str. 3161-3189
Številčenje:Vol. 25, issue 5
PID:20.500.12556/RUNG-9906 Novo okno
COBISS.SI-ID:229156867 Novo okno
UDK:502/504
ISSN pri članku:1680-7324
DOI:10.5194/acp-25-3161-2025 Novo okno
NUK URN:URN:SI:UNG:REP:H1JMN0RS
Datum objave v RUNG:17.03.2025
Število ogledov:360
Število prenosov:3
Metapodatki:XML DC-XML DC-RDF
:
DI ANTONIO, Ludovico, DI BIAGIO, Claudia, FORMENTI, Paola, GRATIEN, Aline, MICHOUD, Vincent, CANTRELL, Christopher, BAUVILLE, Astrid, BERGÉ, Antonin, CAZAUNAU, Mathieu in MOČNIK, Griša, 2025, Aerosol spectral optical properties in the Paris urban area and its peri-urban and forested surroundings during summer 2022 from ACROSS surface observations. Atmospheric chemistry and physics [na spletu]. 2025. Vol. 25, no. 5, p. 3161–3189. [Dostopano 21 april 2025]. DOI 10.5194/acp-25-3161-2025. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=9906
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Gradivo je del revije

Naslov:Atmospheric chemistry and physics
Skrajšan naslov:Atmos. chem. phys.
Založnik:European Geophysical Society, Copernicus GmbH
ISSN:1680-7324
COBISS.SI-ID:1959012 Novo okno

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:14.03.2025

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