Light scattering from volcanic-sand particles in deposited and aerosol form

Zubko Nataliya, Muñoz Olga, Zubko Evgenij, Gritsevich Maria, Escobar-Cerezo Jesús, Berg Matthew J, Peltoniemi Jouni

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The light-scattering properties of volcanic sand collected in Iceland are studied here to characterize the sand particles and develop a reference for future remote-sensing observations. While such sand is common in Iceland, the smaller-size fraction can be readily transported by winds and found in the atmosphere at distant locations. The sand appears dark when deposited on a surface due to the high optical absorption of the material. Therefore, atmospheric regions containing such particles during a dust storm may absorb sunlight considerably, causing redistribution of solar energy. Here, we measure the angular scattered-light intensity and degree of linear polarization from the sand. This is done with two experimental apparatuses, the Cosmic Dust Laboratory (CoDuLab) at the Institute de Astrofísica de Andalucía (IAA) and the goniospectropolarimeter (FIGIFIGO) at the Finnish Geospatial Research Institute (FGI). Two scattering-scenarios of practical interest for remote-sensing applications are considered: (1) single sand-particles suspended in aerosol as an optically thin cloud, and (2) the same particles deposited on a substrate. We also model the measurements with the discrete dipole approximation to estimate the complex-valued refractive index m, where we find that m ≈ 1.6 + 0.01i at λ = 647 nm. Lastly, we present a comparative analysis of the polarimetric response of the sand particles with that reported in the literature for carbon-soot, another highly absorbing atmospheric contaminant.
Original languageEnglish
JournalAtmospheric Environment
ISSN1352-2310
DOIs
Publication statusAccepted/In press - 3 Jul 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • Volcanic sand
  • Remote sensing
  • Polarimetry
  • Radiometry
  • Photometry
  • Particulate surface
  • Aerosols
  • Light scattering
  • Discrete dipole approximation
  • Refractive index
  • Soot
  • 114 Physical sciences
  • 1171 Geosciences

Cite this

Nataliya, Zubko ; Olga, Muñoz ; Evgenij, Zubko ; Maria, Gritsevich ; Jesús, Escobar-Cerezo ; Matthew J, Berg ; Jouni, Peltoniemi. / Light scattering from volcanic-sand particles in deposited and aerosol form. In: Atmospheric Environment. 2019.
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title = "Light scattering from volcanic-sand particles in deposited and aerosol form",
abstract = "The light-scattering properties of volcanic sand collected in Iceland are studied here to characterize the sand particles and develop a reference for future remote-sensing observations. While such sand is common in Iceland, the smaller-size fraction can be readily transported by winds and found in the atmosphere at distant locations. The sand appears dark when deposited on a surface due to the high optical absorption of the material. Therefore, atmospheric regions containing such particles during a dust storm may absorb sunlight considerably, causing redistribution of solar energy. Here, we measure the angular scattered-light intensity and degree of linear polarization from the sand. This is done with two experimental apparatuses, the Cosmic Dust Laboratory (CoDuLab) at the Institute de Astrof{\'i}sica de Andaluc{\'i}a (IAA) and the goniospectropolarimeter (FIGIFIGO) at the Finnish Geospatial Research Institute (FGI). Two scattering-scenarios of practical interest for remote-sensing applications are considered: (1) single sand-particles suspended in aerosol as an optically thin cloud, and (2) the same particles deposited on a substrate. We also model the measurements with the discrete dipole approximation to estimate the complex-valued refractive index m, where we find that m ≈ 1.6 + 0.01i at λ = 647 nm. Lastly, we present a comparative analysis of the polarimetric response of the sand particles with that reported in the literature for carbon-soot, another highly absorbing atmospheric contaminant.",
keywords = "Volcanic sand, Remote sensing, Polarimetry, Radiometry, Photometry, Particulate surface, Aerosols, Light scattering, Discrete dipole approximation, Refractive index, Soot, 114 Physical sciences, 1171 Geosciences",
author = "Zubko Nataliya and Mu{\~n}oz Olga and Zubko Evgenij and Gritsevich Maria and Escobar-Cerezo Jes{\'u}s and {Matthew J}, Berg and Peltoniemi Jouni",
year = "2019",
month = "7",
day = "3",
doi = "10.1016/j.atmosenv.2019.06.051",
language = "English",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "Elsevier Scientific Publ. Co",

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Light scattering from volcanic-sand particles in deposited and aerosol form. / Nataliya, Zubko; Olga, Muñoz; Evgenij, Zubko; Maria, Gritsevich; Jesús, Escobar-Cerezo; Matthew J, Berg; Jouni, Peltoniemi.

In: Atmospheric Environment, 03.07.2019.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Light scattering from volcanic-sand particles in deposited and aerosol form

AU - Nataliya, Zubko

AU - Olga, Muñoz

AU - Evgenij, Zubko

AU - Maria, Gritsevich

AU - Jesús, Escobar-Cerezo

AU - Matthew J, Berg

AU - Jouni, Peltoniemi

PY - 2019/7/3

Y1 - 2019/7/3

N2 - The light-scattering properties of volcanic sand collected in Iceland are studied here to characterize the sand particles and develop a reference for future remote-sensing observations. While such sand is common in Iceland, the smaller-size fraction can be readily transported by winds and found in the atmosphere at distant locations. The sand appears dark when deposited on a surface due to the high optical absorption of the material. Therefore, atmospheric regions containing such particles during a dust storm may absorb sunlight considerably, causing redistribution of solar energy. Here, we measure the angular scattered-light intensity and degree of linear polarization from the sand. This is done with two experimental apparatuses, the Cosmic Dust Laboratory (CoDuLab) at the Institute de Astrofísica de Andalucía (IAA) and the goniospectropolarimeter (FIGIFIGO) at the Finnish Geospatial Research Institute (FGI). Two scattering-scenarios of practical interest for remote-sensing applications are considered: (1) single sand-particles suspended in aerosol as an optically thin cloud, and (2) the same particles deposited on a substrate. We also model the measurements with the discrete dipole approximation to estimate the complex-valued refractive index m, where we find that m ≈ 1.6 + 0.01i at λ = 647 nm. Lastly, we present a comparative analysis of the polarimetric response of the sand particles with that reported in the literature for carbon-soot, another highly absorbing atmospheric contaminant.

AB - The light-scattering properties of volcanic sand collected in Iceland are studied here to characterize the sand particles and develop a reference for future remote-sensing observations. While such sand is common in Iceland, the smaller-size fraction can be readily transported by winds and found in the atmosphere at distant locations. The sand appears dark when deposited on a surface due to the high optical absorption of the material. Therefore, atmospheric regions containing such particles during a dust storm may absorb sunlight considerably, causing redistribution of solar energy. Here, we measure the angular scattered-light intensity and degree of linear polarization from the sand. This is done with two experimental apparatuses, the Cosmic Dust Laboratory (CoDuLab) at the Institute de Astrofísica de Andalucía (IAA) and the goniospectropolarimeter (FIGIFIGO) at the Finnish Geospatial Research Institute (FGI). Two scattering-scenarios of practical interest for remote-sensing applications are considered: (1) single sand-particles suspended in aerosol as an optically thin cloud, and (2) the same particles deposited on a substrate. We also model the measurements with the discrete dipole approximation to estimate the complex-valued refractive index m, where we find that m ≈ 1.6 + 0.01i at λ = 647 nm. Lastly, we present a comparative analysis of the polarimetric response of the sand particles with that reported in the literature for carbon-soot, another highly absorbing atmospheric contaminant.

KW - Volcanic sand

KW - Remote sensing

KW - Polarimetry

KW - Radiometry

KW - Photometry

KW - Particulate surface

KW - Aerosols

KW - Light scattering

KW - Discrete dipole approximation

KW - Refractive index

KW - Soot

KW - 114 Physical sciences

KW - 1171 Geosciences

U2 - 10.1016/j.atmosenv.2019.06.051

DO - 10.1016/j.atmosenv.2019.06.051

M3 - Article

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

ER -