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Naslov:Determining the Aethalometer multiple scattering enhancement factor C from the filter loading parameter
Avtorji:ID Ferrero, Luca (Avtor)
ID Losi, Niccolò (Avtor)
ID Rigler, Martin (Avtor)
ID Gregorič, Asta (Avtor)
ID Colombi, C. (Avtor)
ID D'Angelo, L. (Avtor)
ID Cuccia, E. (Avtor)
ID Cefalì, A. M. (Avtor)
ID Gini, I. (Avtor)
ID Doldi, A. (Avtor)
Datoteke:.pdf 1-s2.0-S0048969724003565-main.pdf (3,18 MB)
MD5: 7E10AC5FD9D56F333A786FEF6D8FB1F6
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Light-absorbing aerosols heat the atmosphere; an accurate quantification of their absorption coefficient is mandatory. However, standard reference instruments (CAPS, MAAP, PAX, PTAAM) are not always available at each measuring site around the world. By integrating all previous published studies concerning the Aethalometers, the AE33 filter loading parameter, provided by the dual-spot algorithm, were used to determine the multiple scattering enhancement factor from the Aethalometer itself (hereinafter CAE) on an yearly and a monthly basis. The method was developed in Milan, where Aethalometer measurements were compared with MAAP data; the comparison showed a good agreement in terms of equivalent black carbon (R2 = 0.93; slope = 1.02 and a negligible intercept = 0.12 μg m−3) leading to a yearly experimental multiple scattering enhancement factor of 2.51 ± 0.04 (hereinafter CMAAP). On a yearly time base the CAE values obtained using the new approach was 2.52 ± 0.01, corresponding to the experimental one (CMAAP). Considering the seasonal behavior, higher experimental CMAAP and computed CAE values were found in summer (2.83 ± 0.12) whereas, the lower ones in winter/early-spring (2.37 ± 0.03), in agreement with the single scattering albedo behavior in the Po Valley. Overall, the agreement between the experimental CMAAP and CAE showed a root mean squared error (RMSE) of just 0.038 on the CMAAP prediction, characterized by a slope close to 1 (1.001 ± 0.178), a negligible intercept (−0.002 ± 0.455) and a high degree of correlation (R2 = 0.955). From an environmental point of view, the application of a dynamic (space/time) determination of CAE increases the accuracy of the aerosol heating rate (compared to applying a fixed C value) up to 16 % solely in Milan, and to 114 % when applied in the Arctic at 80°N.
Ključne besede:aethalometer, C factor, loading parameter, MAAP, heating rate
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2024
Leto izida:2024
Št. strani:str. 1-20
Številčenje:Vol. 917, [article no.] ǂ170221
PID:20.500.12556/RUNG-8841-946305d0-0ee9-1e26-919d-65b200553522 Novo okno
COBISS.SI-ID:183608579 Novo okno
UDK:53
ISSN pri članku:0048-9697
DOI:10.1016/j.scitotenv.2024.170221 Novo okno
NUK URN:URN:SI:UNG:REP:K4QKHFZO
Datum objave v RUNG:02.02.2024
Število ogledov:2955
Število prenosov:26
Metapodatki:XML DC-XML DC-RDF
:
FERRERO, Luca, LOSI, Niccolò, RIGLER, Martin, GREGORIČ, Asta, COLOMBI, C., D’ANGELO, L., CUCCIA, E., CEFALÌ, A. M., GINI, I. in DOLDI, A., 2024, Determining the Aethalometer multiple scattering enhancement factor C from the filter loading parameter. Science of the total environment [na spletu]. 2024. Vol. 917, no. 170221, p. 1–20. [Dostopano 14 april 2025]. DOI 10.1016/j.scitotenv.2024.170221. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=8841
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Gradivo je del revije

Naslov:Science of the total environment
Skrajšan naslov:Sci. total environ.
Založnik:Elsevier
ISSN:0048-9697
COBISS.SI-ID:26369024 Novo okno

Gradivo je financirano iz projekta

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:L1-4386
Naslov:CAEmissionMonitor – Določanje hitrosti primarnih emisij ogljičnih aerosolov in sekundarne produkcije organskih aerosolov
Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:J2-2502
Naslov:Kvantitativne optične metode za napredno vrednotenje onesnaženosti zraka z delci v realnem času

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Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
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