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Is the near-spherical shape the “new black” for smoke?

Gialitaki, Anna and Tsekeri, Alexandra and Amiridis, Vassilis and Ceolato, Romain and Paulien, Lucas and Kampouri, Anna and Gkikas, Antonis and Solomos, Stavros and Marinou, Eleni and Haarig, Moritz and Baars, Holger and Ansmann, Albert and Lapyonok, Tatyana and Lopatina, Anton and Dubovik, O. and Groß, Silke Martha and Wirth, Martin and Balis, Dimitris (2020) Is the near-spherical shape the “new black” for smoke? Atmospheric Chemistry and Physics, 20 (22), pp. 14005-14021. Copernicus Publications. doi: 10.5194/acp-20-14005-2020. ISSN 1680-7316.

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Official URL: https://doi.org/10.5194/acp-20-14005-2020

Abstract

We examine the capability of near-spherical-shaped particles to reproduce the non-typical Particle Linear Depolarization Ratio (PLDR) values measured over Europe for stratospheric smoke originating from Canadian wildfires. The smoke layers were detected both in the troposphere and the stratosphere, though in the latter case the particles presented PLDR values of almost 18 % at 532 nm as well as a strong spectral dependence from the UV to the Near-IR. The assumption that the smoke particles have a near-spherical shape allows for the reproduction of the observed PLDR and Lidar Ratio (LR), whereas this was not possible when using more complicated shapes. The results presented here are supported by recent findings in the literature, showing that up to now the near-spherical shape (or closely similar shapes) is the only morphology found capable of reproducing the observed intensive optical properties of stratospheric smoke, as well as their spectral dependence.

Item URL in elib:https://elib.dlr.de/136516/
Document Type:Article
Title:Is the near-spherical shape the “new black” for smoke?
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Gialitaki, AnnaNOA, Athen, GriechenlandUNSPECIFIEDUNSPECIFIED
Tsekeri, AlexandraNOA, Athen, GriechenlandUNSPECIFIEDUNSPECIFIED
Amiridis, VassilisNOA, Athens, GriechenlandUNSPECIFIEDUNSPECIFIED
Ceolato, RomainONERA, The French Aerospace Lab, Toulouse, FranceUNSPECIFIEDUNSPECIFIED
Paulien, LucasONERA, The French Aerospace Lab, Toulouse, FranceUNSPECIFIEDUNSPECIFIED
Kampouri, AnnaIAASARS, Athens, GreeceUNSPECIFIEDUNSPECIFIED
Gkikas, AntonisNOA, Athen, GriechenlandUNSPECIFIEDUNSPECIFIED
Solomos, StavrosNOA, Athen, GriechenlandUNSPECIFIEDUNSPECIFIED
Marinou, EleniDLR, IPA and NOA, Athen, Griechenlandhttps://orcid.org/0000-0003-2631-6057UNSPECIFIED
Haarig, MoritzTROPOS, LeipzigUNSPECIFIEDUNSPECIFIED
Baars, HolgerTROPOS, LeipzigUNSPECIFIEDUNSPECIFIED
Ansmann, AlbertTROPOS, Leipzig, GermanyUNSPECIFIEDUNSPECIFIED
Lapyonok, TatyanaUniv. des Sciences et Technologies de Lille, Villeneuve d'Ascq, FUNSPECIFIEDUNSPECIFIED
Lopatina, AntonGRASP-SAS, Villeneuve d'Ascq, FranceUNSPECIFIEDUNSPECIFIED
Dubovik, O.Univ. des Sciences et Technologies de Lille, Villeneuve d'Ascq, FUNSPECIFIEDUNSPECIFIED
Groß, Silke MarthaDLR, IPAhttps://orcid.org/0000-0002-7467-9269UNSPECIFIED
Wirth, MartinDLR, IPAhttps://orcid.org/0000-0001-5951-2252UNSPECIFIED
Balis, DimitrisAristotle University of Thessaloniki, GreeceUNSPECIFIEDUNSPECIFIED
Date:2020
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:20
DOI:10.5194/acp-20-14005-2020
Page Range:pp. 14005-14021
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:Aerosol, black carbon, optical modelling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Project Climatic relevance of atmospheric tracer gases, aerosols and clouds
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Groß, Silke Martha
Deposited On:08 Oct 2020 09:41
Last Modified:30 Nov 2020 11:41

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