Impact of vehicle soot agglomerates on snow albedo

Snow covers are very sensitive to contamination from soot agglomerates derived from vehicles. A spectroradiometric system covering a wavelength from 300 to 2500 nm with variable resolution (from 2.2 to 7.0 nm) was used to characterize the effect of soot derived from a diesel vehicle whose exhaust st...

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Autores: González Correa, Sofía, Gómez Doménech, Diego, Pacheco-Ferrada , Diego, Flores , Raul, Castro , Lina, Fadic-Ruiz , Ximena, Cereceda-Balic , Francisco, Ballesteros Yáñez, Rosario, Lapuerta Amigo, Magín
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/44605
Acceso en línea:https://doi.org/10.3390/atmos13050801
https://hdl.handle.net/10578/44605
Access Level:acceso abierto
Palabra clave:Black carbon
Radiative transfer modelling
Snow albedo
Vehicle emissions
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spelling Impact of vehicle soot agglomerates on snow albedoGonzález Correa, SofíaGómez Doménech, DiegoPacheco-Ferrada , DiegoFlores , RaulCastro , LinaFadic-Ruiz , XimenaCereceda-Balic , FranciscoBallesteros Yáñez, RosarioLapuerta Amigo, MagínBlack carbonRadiative transfer modellingSnow albedoVehicle emissionsSnow covers are very sensitive to contamination from soot agglomerates derived from vehicles. A spectroradiometric system covering a wavelength from 300 to 2500 nm with variable resolution (from 2.2 to 7.0 nm) was used to characterize the effect of soot derived from a diesel vehicle whose exhaust stream was oriented towards a limited snowed area. The vehicle was previously tested in a rolling test bench where particle number emissions and size distributions were measured, and fractal analysis of particle microscopic images was made after collecting individual agglomerates by means of an electrostatizing sampler. Finally, the experimental results were compared to mod elled results of contaminated snow spectral albedo obtained with a snow radiative transfer model developed by our research group (OptiPar) and with other models. Both experimental and modelled results show that increasingly accumulated soot mass reduces the snow albedo with a constant rate of around 0.03 units per mg/kg, with a predominant effect on the UV-VIS range. Based on the small size of the primary particles (around 25 nm), the Rayleigh-Debye-Gans approximation, further corrected to account for the effect of multiple scattering within the agglomerates, was revealed as an appropriate technique in the model.MDPI202520252022info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.3390/atmos13050801https://hdl.handle.net/10578/44605reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésPID2019–109767RB-I00ANID-FONDEF ID19I10359,ANID-ANILLO ACT210021ANID-FONDECYT Regular 1221526ANID-FONDECYT Iniciación 11220525ANID-FONDECYT Iniciación 11220482EQC2019-006105-Pinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/446052026-05-27T07:36:41Z
dc.title.none.fl_str_mv Impact of vehicle soot agglomerates on snow albedo
title Impact of vehicle soot agglomerates on snow albedo
spellingShingle Impact of vehicle soot agglomerates on snow albedo
González Correa, Sofía
Black carbon
Radiative transfer modelling
Snow albedo
Vehicle emissions
title_short Impact of vehicle soot agglomerates on snow albedo
title_full Impact of vehicle soot agglomerates on snow albedo
title_fullStr Impact of vehicle soot agglomerates on snow albedo
title_full_unstemmed Impact of vehicle soot agglomerates on snow albedo
title_sort Impact of vehicle soot agglomerates on snow albedo
dc.creator.none.fl_str_mv González Correa, Sofía
Gómez Doménech, Diego
Pacheco-Ferrada , Diego
Flores , Raul
Castro , Lina
Fadic-Ruiz , Ximena
Cereceda-Balic , Francisco
Ballesteros Yáñez, Rosario
Lapuerta Amigo, Magín
author González Correa, Sofía
author_facet González Correa, Sofía
Gómez Doménech, Diego
Pacheco-Ferrada , Diego
Flores , Raul
Castro , Lina
Fadic-Ruiz , Ximena
Cereceda-Balic , Francisco
Ballesteros Yáñez, Rosario
Lapuerta Amigo, Magín
author_role author
author2 Gómez Doménech, Diego
Pacheco-Ferrada , Diego
Flores , Raul
Castro , Lina
Fadic-Ruiz , Ximena
Cereceda-Balic , Francisco
Ballesteros Yáñez, Rosario
Lapuerta Amigo, Magín
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Black carbon
Radiative transfer modelling
Snow albedo
Vehicle emissions
topic Black carbon
Radiative transfer modelling
Snow albedo
Vehicle emissions
description Snow covers are very sensitive to contamination from soot agglomerates derived from vehicles. A spectroradiometric system covering a wavelength from 300 to 2500 nm with variable resolution (from 2.2 to 7.0 nm) was used to characterize the effect of soot derived from a diesel vehicle whose exhaust stream was oriented towards a limited snowed area. The vehicle was previously tested in a rolling test bench where particle number emissions and size distributions were measured, and fractal analysis of particle microscopic images was made after collecting individual agglomerates by means of an electrostatizing sampler. Finally, the experimental results were compared to mod elled results of contaminated snow spectral albedo obtained with a snow radiative transfer model developed by our research group (OptiPar) and with other models. Both experimental and modelled results show that increasingly accumulated soot mass reduces the snow albedo with a constant rate of around 0.03 units per mg/kg, with a predominant effect on the UV-VIS range. Based on the small size of the primary particles (around 25 nm), the Rayleigh-Debye-Gans approximation, further corrected to account for the effect of multiple scattering within the agglomerates, was revealed as an appropriate technique in the model.
publishDate 2022
dc.date.none.fl_str_mv 2022
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.3390/atmos13050801
https://hdl.handle.net/10578/44605
url https://doi.org/10.3390/atmos13050801
https://hdl.handle.net/10578/44605
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PID2019–109767RB-I00
ANID-FONDEF ID19I10359,
ANID-ANILLO ACT210021
ANID-FONDECYT Regular 1221526
ANID-FONDECYT Iniciación 11220525
ANID-FONDECYT Iniciación 11220482
EQC2019-006105-P
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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