University of Hertfordshire

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A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols

Research output: Contribution to journalArticlepeer-review

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A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols. / Vratolis, S.; Fetfatzis, P.; Argyrouli, A.; Papayannis, A.; Müller, D.; Veselovskii, I.; Bougiatioti, A.; Nenes, A.; Remoundaki, E.; Diapouli, E.; Manousakas, M.; Mylonaki, M.; Eleftheriadis, K.

In: Journal of Aerosol Science, Vol. 117, 01.03.2018, p. 54-62.

Research output: Contribution to journalArticlepeer-review

Harvard

Vratolis, S, Fetfatzis, P, Argyrouli, A, Papayannis, A, Müller, D, Veselovskii, I, Bougiatioti, A, Nenes, A, Remoundaki, E, Diapouli, E, Manousakas, M, Mylonaki, M & Eleftheriadis, K 2018, 'A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols', Journal of Aerosol Science, vol. 117, pp. 54-62. https://doi.org/10.1016/j.jaerosci.2017.12.013

APA

Vratolis, S., Fetfatzis, P., Argyrouli, A., Papayannis, A., Müller, D., Veselovskii, I., Bougiatioti, A., Nenes, A., Remoundaki, E., Diapouli, E., Manousakas, M., Mylonaki, M., & Eleftheriadis, K. (2018). A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols. Journal of Aerosol Science, 117, 54-62. https://doi.org/10.1016/j.jaerosci.2017.12.013

Vancouver

Author

Vratolis, S. ; Fetfatzis, P. ; Argyrouli, A. ; Papayannis, A. ; Müller, D. ; Veselovskii, I. ; Bougiatioti, A. ; Nenes, A. ; Remoundaki, E. ; Diapouli, E. ; Manousakas, M. ; Mylonaki, M. ; Eleftheriadis, K. / A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols. In: Journal of Aerosol Science. 2018 ; Vol. 117. pp. 54-62.

Bibtex

@article{4be5d877f8814a3997a052d02279b32c,
title = "A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols",
abstract = "In the context of the international experimental campaign Hygroscopic Aerosols to Cloud Droplets (HygrA-CD, 15 May to 22 June 2014), dry aerosol size distributions were measured at Demokritos station (DEM) using a Scanning Mobility Particle Sizer (SMPS) in the size range from 10 to 550 nm (electrical mobility diameter), and an Optical Particle Counter (OPC model Grimm 107 operating at the laser wavelength of 660 nm) to acquire the particle size distribution in the size range of 250 nm to 2.5 μm optical diameter. This work describes a method that was developed to align size distributions in the overlapping range of the SMPS and the OPC, thus allowing us to retrieve the real part of the aerosol equivalent refractive index (ERI). The objective is to show that size distribution data acquired at in situ measurement stations can provide an insight to the physical and chemical properties of aerosol particles, leading to better understanding of aerosol impact on human health and earth radiative balance. The resulting ERI could be used in radiative transfer models to assess aerosol forcing direct effect, as well as an index of aerosol chemical composition. To validate the method, a series of calibration experiments were performed using compounds with known refractive index (RI). This led to a corrected version of the ERI values, (ERICOR). The ERICOR values were subsequently compared to model estimates of RI values, based on measured PM2.5 chemical composition, and to aerosol RI retrieved values by inverted lidar measurements on selected days.",
keywords = "Aerosol refractive index, Lidar, Optical particle counter, Scanning mobility particle sizer",
author = "S. Vratolis and P. Fetfatzis and A. Argyrouli and A. Papayannis and D. M{\"u}ller and I. Veselovskii and A. Bougiatioti and A. Nenes and E. Remoundaki and E. Diapouli and M. Manousakas and M. Mylonaki and K. Eleftheriadis",
note = "This document is the Accepted Manuscript version of the following article: S. Vratolis, et al, {\textquoteleft}A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols{\textquoteright}, Journal of Aerosol Science, Vol. 117: 54-62, March 2018. Under embargo until 29 December 2019. The final, published version is available online at DOI: https://doi.org/10.1016/j.jaerosci.2017.12.013. ",
year = "2018",
month = mar,
day = "1",
doi = "10.1016/j.jaerosci.2017.12.013",
language = "English",
volume = "117",
pages = "54--62",
journal = "Journal of Aerosol Science",
issn = "0021-8502",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols

AU - Vratolis, S.

AU - Fetfatzis, P.

AU - Argyrouli, A.

AU - Papayannis, A.

AU - Müller, D.

AU - Veselovskii, I.

AU - Bougiatioti, A.

AU - Nenes, A.

AU - Remoundaki, E.

AU - Diapouli, E.

AU - Manousakas, M.

AU - Mylonaki, M.

AU - Eleftheriadis, K.

N1 - This document is the Accepted Manuscript version of the following article: S. Vratolis, et al, ‘A new method to retrieve the real part of the equivalent refractive index of atmospheric aerosols’, Journal of Aerosol Science, Vol. 117: 54-62, March 2018. Under embargo until 29 December 2019. The final, published version is available online at DOI: https://doi.org/10.1016/j.jaerosci.2017.12.013.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - In the context of the international experimental campaign Hygroscopic Aerosols to Cloud Droplets (HygrA-CD, 15 May to 22 June 2014), dry aerosol size distributions were measured at Demokritos station (DEM) using a Scanning Mobility Particle Sizer (SMPS) in the size range from 10 to 550 nm (electrical mobility diameter), and an Optical Particle Counter (OPC model Grimm 107 operating at the laser wavelength of 660 nm) to acquire the particle size distribution in the size range of 250 nm to 2.5 μm optical diameter. This work describes a method that was developed to align size distributions in the overlapping range of the SMPS and the OPC, thus allowing us to retrieve the real part of the aerosol equivalent refractive index (ERI). The objective is to show that size distribution data acquired at in situ measurement stations can provide an insight to the physical and chemical properties of aerosol particles, leading to better understanding of aerosol impact on human health and earth radiative balance. The resulting ERI could be used in radiative transfer models to assess aerosol forcing direct effect, as well as an index of aerosol chemical composition. To validate the method, a series of calibration experiments were performed using compounds with known refractive index (RI). This led to a corrected version of the ERI values, (ERICOR). The ERICOR values were subsequently compared to model estimates of RI values, based on measured PM2.5 chemical composition, and to aerosol RI retrieved values by inverted lidar measurements on selected days.

AB - In the context of the international experimental campaign Hygroscopic Aerosols to Cloud Droplets (HygrA-CD, 15 May to 22 June 2014), dry aerosol size distributions were measured at Demokritos station (DEM) using a Scanning Mobility Particle Sizer (SMPS) in the size range from 10 to 550 nm (electrical mobility diameter), and an Optical Particle Counter (OPC model Grimm 107 operating at the laser wavelength of 660 nm) to acquire the particle size distribution in the size range of 250 nm to 2.5 μm optical diameter. This work describes a method that was developed to align size distributions in the overlapping range of the SMPS and the OPC, thus allowing us to retrieve the real part of the aerosol equivalent refractive index (ERI). The objective is to show that size distribution data acquired at in situ measurement stations can provide an insight to the physical and chemical properties of aerosol particles, leading to better understanding of aerosol impact on human health and earth radiative balance. The resulting ERI could be used in radiative transfer models to assess aerosol forcing direct effect, as well as an index of aerosol chemical composition. To validate the method, a series of calibration experiments were performed using compounds with known refractive index (RI). This led to a corrected version of the ERI values, (ERICOR). The ERICOR values were subsequently compared to model estimates of RI values, based on measured PM2.5 chemical composition, and to aerosol RI retrieved values by inverted lidar measurements on selected days.

KW - Aerosol refractive index

KW - Lidar

KW - Optical particle counter

KW - Scanning mobility particle sizer

UR - http://www.scopus.com/inward/record.url?scp=85039983827&partnerID=8YFLogxK

U2 - 10.1016/j.jaerosci.2017.12.013

DO - 10.1016/j.jaerosci.2017.12.013

M3 - Article

AN - SCOPUS:85039983827

VL - 117

SP - 54

EP - 62

JO - Journal of Aerosol Science

JF - Journal of Aerosol Science

SN - 0021-8502

ER -