Monitoring dust particle orientation with measurements of sunlight dichroic extinction
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 ord...
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ftdatacite:10.5281/zenodo.5075997 2023-05-15T13:06:09+02:00 Monitoring dust particle orientation with measurements of sunlight dichroic extinction Daskalopoulou, Vasiliki Raptis, Ioannis-Panagiotis Tsekeri, Alexandra Amiridis, Vassilis Kazadzis, Stelios Ulanowski, Zbigniew Metallinos, Spiros Tassis, Konstantinos Martin, William 2021 https://dx.doi.org/10.5281/zenodo.5075997 https://zenodo.org/record/5075997 unknown Zenodo https://zenodo.org/communities/noa-react https://dx.doi.org/10.5281/zenodo.5075998 https://zenodo.org/communities/noa-react Embargoed Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/embargoedAccess CC-BY Text Conference paper article-journal ScholarlyArticle 2021 ftdatacite https://doi.org/10.5281/zenodo.5075997 https://doi.org/10.5281/zenodo.5075998 2021-11-05T12:55:41Z 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. Conference Object Aerosol Robotic Network DataCite Metadata Store (German National Library of Science and Technology) |
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description |
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. |
format |
Conference Object |
author |
Daskalopoulou, Vasiliki Raptis, Ioannis-Panagiotis Tsekeri, Alexandra Amiridis, Vassilis Kazadzis, Stelios Ulanowski, Zbigniew Metallinos, Spiros Tassis, Konstantinos Martin, William |
spellingShingle |
Daskalopoulou, Vasiliki Raptis, Ioannis-Panagiotis Tsekeri, Alexandra Amiridis, Vassilis Kazadzis, Stelios Ulanowski, Zbigniew Metallinos, Spiros Tassis, Konstantinos Martin, William Monitoring dust particle orientation with measurements of sunlight dichroic extinction |
author_facet |
Daskalopoulou, Vasiliki Raptis, Ioannis-Panagiotis Tsekeri, Alexandra Amiridis, Vassilis Kazadzis, Stelios Ulanowski, Zbigniew Metallinos, Spiros Tassis, Konstantinos Martin, William |
author_sort |
Daskalopoulou, Vasiliki |
title |
Monitoring dust particle orientation with measurements of sunlight dichroic extinction |
title_short |
Monitoring dust particle orientation with measurements of sunlight dichroic extinction |
title_full |
Monitoring dust particle orientation with measurements of sunlight dichroic extinction |
title_fullStr |
Monitoring dust particle orientation with measurements of sunlight dichroic extinction |
title_full_unstemmed |
Monitoring dust particle orientation with measurements of sunlight dichroic extinction |
title_sort |
monitoring dust particle orientation with measurements of sunlight dichroic extinction |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://dx.doi.org/10.5281/zenodo.5075997 https://zenodo.org/record/5075997 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
https://zenodo.org/communities/noa-react https://dx.doi.org/10.5281/zenodo.5075998 https://zenodo.org/communities/noa-react |
op_rights |
Embargoed Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/embargoedAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.5075997 https://doi.org/10.5281/zenodo.5075998 |
_version_ |
1766404886442803200 |