Monitoring dust particle orientation with measurements of sunlight dichroic extinction

V. Daskalopoulou; I.P Raptis; Alexandra Tsekeri; Vassilis Amiridis; S. Kazadzis; Zbigniew Ulanowski; S. Metallinos; K. Tassis; Bill Martin

Monitoring dust particle orientation with measurements of sunlight dichroic extinction

V. Daskalopoulou, I.P Raptis, Alexandra Tsekeri, Vassilis Amiridis, S. Kazadzis, Zbigniew Ulanowski, S. Metallinos , K. Tassis, Bill Martin

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

Alignment of irregularly shaped dust aerosols leading to linear dichroism has been reported in atmospheric layers. The present study intents to quantify the excess linear polarization of direct solar radiation propagating through atmospheric layers, when these contain oriented dust particles. In order to record the linear polarization, we have used the Solar Polarimeter (SolPol). SolPol is an instrument that measures the polarization of direct solar irradiance at 550nm. It is installed on an astronomical tracker in order target the solar disk. Using the measurements, the Stokes parameters are retrieved (I, Q/I, U/I and V/I) with an accuracy of ~1% and precision of 1 ppm. Collocated measurements of a sun-photometer (Aerosol Robotic Network; AERONET) and lidar are used to quantify the Aerosol Optical Depth (AOD) and identify the vertical distribution of dust layers, respectively. We will present indications of dust particle orientation recorded at the PANGEA station in the island of Antikythera, Greece, and at Nicosia, Cyprus during the preparatory phase for the ASKOS campaign in July 2021. The relation of the linear polarization of the solar irradiance to other optical properties of the dust layer is investigated.

Original language	English
Title of host publication	15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021)
Subtitle of host publication	Conference Proceedings
Editors	Aristides Bartzokas, Panagiotis Nastos
Place of Publication	Ioannina, Greece
Pages	1071-1076
Number of pages	6
Publication status	Published - 29 Sept 2021
Event	15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021) - Ioannina, Greece Duration: 26 Sept 2021 → 29 Sept 2021 https://www.conferre.gr/allevents/comecap2020/

Conference

Conference	15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021)
Country/Territory	Greece
City	Ioannina
Period	26/09/21 → 29/09/21
Other	COMECAP 2021 strives during its 4 days organization to bring together researchers in the areas of Meteorology, Climatology and Atmospheric Physics, as well as to highlight all the latest methodologies, modeling tools and theoretical approaches which will attract scientists and researchers from the international scientific community.
Internet address	https://www.conferre.gr/allevents/comecap2020/

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© 2021 COMECAP CONFERENCE. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of the author.
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Daskalopoulou, V., Raptis, I. P., Tsekeri, A., Amiridis, V., Kazadzis, S., Ulanowski, Z., Metallinos , S., Tassis, K., & Martin, B. (2021). Monitoring dust particle orientation with measurements of sunlight dichroic extinction. In A. Bartzokas, & P. Nastos (Eds.), 15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021): Conference Proceedings (pp. 1071-1076).

@inproceedings{b54ec1aef45e4951bfd634a399323b6e,

title = "Monitoring dust particle orientation with measurements of sunlight dichroic extinction",

abstract = "Alignment of irregularly shaped dust aerosols leading to linear dichroism has been reported in atmospheric layers. The present study intents to quantify the excess linear polarization of direct solar radiation propagating through atmospheric layers, when these contain oriented dust particles. In order to record the linear polarization, we have used the Solar Polarimeter (SolPol). SolPol is an instrument that measures the polarization of direct solar irradiance at 550nm. It is installed on an astronomical tracker in order target the solar disk. Using the measurements, the Stokes parameters are retrieved (I, Q/I, U/I and V/I) with an accuracy of ~1% and precision of 1 ppm. Collocated measurements of a sun-photometer (Aerosol Robotic Network; AERONET) and lidar are used to quantify the Aerosol Optical Depth (AOD) and identify the vertical distribution of dust layers, respectively. We will present indications of dust particle orientation recorded at the PANGEA station in the island of Antikythera, Greece, and at Nicosia, Cyprus during the preparatory phase for the ASKOS campaign in July 2021. The relation of the linear polarization of the solar irradiance to other optical properties of the dust layer is investigated.",

author = "V. Daskalopoulou and I.P Raptis and Alexandra Tsekeri and Vassilis Amiridis and S. Kazadzis and Zbigniew Ulanowski and S. Metallinos and K. Tassis and Bill Martin",

note = "{\textcopyright} 2021 COMECAP CONFERENCE. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of the author.; 15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021) ; Conference date: 26-09-2021 Through 29-09-2021",

year = "2021",

month = sep,

day = "29",

language = "English",

isbn = "978-960-233-267-2",

pages = "1071--1076",

editor = "Aristides Bartzokas and Panagiotis Nastos",

booktitle = "15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021)",

url = "https://www.conferre.gr/allevents/comecap2020/",

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Daskalopoulou, V, Raptis, IP, Tsekeri, A, Amiridis, V, Kazadzis, S, Ulanowski, Z, Metallinos , S, Tassis, K & Martin, B 2021, Monitoring dust particle orientation with measurements of sunlight dichroic extinction. in A Bartzokas & P Nastos (eds), 15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021): Conference Proceedings. Ioannina, Greece, pp. 1071-1076, 15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021), Ioannina, Greece, 26/09/21.

Monitoring dust particle orientation with measurements of sunlight dichroic extinction. / Daskalopoulou, V.; Raptis, I.P; Tsekeri, Alexandra et al.
15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021): Conference Proceedings. ed. / Aristides Bartzokas; Panagiotis Nastos. Ioannina, Greece, 2021. p. 1071-1076.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Monitoring dust particle orientation with measurements of sunlight dichroic extinction

AU - Daskalopoulou, V.

AU - Raptis, I.P

AU - Tsekeri, Alexandra

AU - Amiridis, Vassilis

AU - Kazadzis, S.

AU - Ulanowski, Zbigniew

AU - Metallinos , S.

AU - Tassis, K.

AU - Martin, Bill

N1 - © 2021 COMECAP CONFERENCE. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of the author.

PY - 2021/9/29

Y1 - 2021/9/29

N2 - Alignment of irregularly shaped dust aerosols leading to linear dichroism has been reported in atmospheric layers. The present study intents to quantify the excess linear polarization of direct solar radiation propagating through atmospheric layers, when these contain oriented dust particles. In order to record the linear polarization, we have used the Solar Polarimeter (SolPol). SolPol is an instrument that measures the polarization of direct solar irradiance at 550nm. It is installed on an astronomical tracker in order target the solar disk. Using the measurements, the Stokes parameters are retrieved (I, Q/I, U/I and V/I) with an accuracy of ~1% and precision of 1 ppm. Collocated measurements of a sun-photometer (Aerosol Robotic Network; AERONET) and lidar are used to quantify the Aerosol Optical Depth (AOD) and identify the vertical distribution of dust layers, respectively. We will present indications of dust particle orientation recorded at the PANGEA station in the island of Antikythera, Greece, and at Nicosia, Cyprus during the preparatory phase for the ASKOS campaign in July 2021. The relation of the linear polarization of the solar irradiance to other optical properties of the dust layer is investigated.

AB - Alignment of irregularly shaped dust aerosols leading to linear dichroism has been reported in atmospheric layers. The present study intents to quantify the excess linear polarization of direct solar radiation propagating through atmospheric layers, when these contain oriented dust particles. In order to record the linear polarization, we have used the Solar Polarimeter (SolPol). SolPol is an instrument that measures the polarization of direct solar irradiance at 550nm. It is installed on an astronomical tracker in order target the solar disk. Using the measurements, the Stokes parameters are retrieved (I, Q/I, U/I and V/I) with an accuracy of ~1% and precision of 1 ppm. Collocated measurements of a sun-photometer (Aerosol Robotic Network; AERONET) and lidar are used to quantify the Aerosol Optical Depth (AOD) and identify the vertical distribution of dust layers, respectively. We will present indications of dust particle orientation recorded at the PANGEA station in the island of Antikythera, Greece, and at Nicosia, Cyprus during the preparatory phase for the ASKOS campaign in July 2021. The relation of the linear polarization of the solar irradiance to other optical properties of the dust layer is investigated.

UR - https://www.conferre.gr/allevents/comecap2020/

M3 - Conference contribution

SN - 978-960-233-267-2

SP - 1071

EP - 1076

BT - 15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021)

A2 - Bartzokas, Aristides

A2 - Nastos, Panagiotis

CY - Ioannina, Greece

T2 - 15th International Conference on Meteorology, Climatology and Atmospheric Physics (COMECAP 2021)

Y2 - 26 September 2021 through 29 September 2021

ER -

Monitoring dust particle orientation with measurements of sunlight dichroic extinction

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