Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes
Absorption aerosol optical depth (AAOD) as obtained from sun–sky photometer measurements provides a measure of the light-absorbing properties of the columnar aerosol loading. However, it is not an unambiguous aerosol-type-specific parameter, particularly if several types of absorbing aerosols, for i...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00003426 2023-05-15T13:06:31+02:00 Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes Shin, Sung-Kyun Tesche, Matthias Müller, Detlef Noh, Youngmin 2019-01 electronic https://doi.org/10.5194/amt-12-607-2019 https://noa.gwlb.de/receive/cop_mods_00003426 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00003384/amt-12-607-2019.pdf https://amt.copernicus.org/articles/12/607/2019/amt-12-607-2019.pdf eng eng Copernicus Publications Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-12-607-2019 https://noa.gwlb.de/receive/cop_mods_00003426 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00003384/amt-12-607-2019.pdf https://amt.copernicus.org/articles/12/607/2019/amt-12-607-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/amt-12-607-2019 2022-02-08T23:00:36Z Absorption aerosol optical depth (AAOD) as obtained from sun–sky photometer measurements provides a measure of the light-absorbing properties of the columnar aerosol loading. However, it is not an unambiguous aerosol-type-specific parameter, particularly if several types of absorbing aerosols, for instance black carbon (BC) and mineral dust, are present in a mixed aerosol plume. The contribution of mineral dust to total aerosol light absorption is particularly important at UV wavelengths. In this study we refine a lidar-based technique applied to the separation of dust and non-dust aerosol types for the use with Aerosol Robotic Network (AERONET) direct sun and inversion products. We extend the methodology to retrieve AAOD related to non-dust aerosol (AAODnd) and BC (AAODBC). We test the method at selected AERONET sites that are frequently affected by aerosol plumes that contain a mixture of Saharan or Asian mineral dust and biomass-burning smoke or anthropogenic pollution, respectively. We find that aerosol optical depth (AOD) related to mineral dust as obtained with our methodology is frequently smaller than coarse-mode AOD. This suggests that the latter is not an ideal proxy for estimating the contribution of mineral dust to mixed dust plumes. We present the results of the AAODBC retrieval for the selected AERONET sites and compare them to coincident values provided in the Copernicus Atmosphere Monitoring System aerosol reanalysis. We find that modelled and AERONET AAODBC are most consistent for Asian sites or at Saharan sites with strong local anthropogenic sources. Article in Journal/Newspaper Aerosol Robotic Network Niedersächsisches Online-Archiv NOA Atmospheric Measurement Techniques 12 1 607 618 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Shin, Sung-Kyun Tesche, Matthias Müller, Detlef Noh, Youngmin Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes |
topic_facet |
article Verlagsveröffentlichung |
description |
Absorption aerosol optical depth (AAOD) as obtained from sun–sky photometer measurements provides a measure of the light-absorbing properties of the columnar aerosol loading. However, it is not an unambiguous aerosol-type-specific parameter, particularly if several types of absorbing aerosols, for instance black carbon (BC) and mineral dust, are present in a mixed aerosol plume. The contribution of mineral dust to total aerosol light absorption is particularly important at UV wavelengths. In this study we refine a lidar-based technique applied to the separation of dust and non-dust aerosol types for the use with Aerosol Robotic Network (AERONET) direct sun and inversion products. We extend the methodology to retrieve AAOD related to non-dust aerosol (AAODnd) and BC (AAODBC). We test the method at selected AERONET sites that are frequently affected by aerosol plumes that contain a mixture of Saharan or Asian mineral dust and biomass-burning smoke or anthropogenic pollution, respectively. We find that aerosol optical depth (AOD) related to mineral dust as obtained with our methodology is frequently smaller than coarse-mode AOD. This suggests that the latter is not an ideal proxy for estimating the contribution of mineral dust to mixed dust plumes. We present the results of the AAODBC retrieval for the selected AERONET sites and compare them to coincident values provided in the Copernicus Atmosphere Monitoring System aerosol reanalysis. We find that modelled and AERONET AAODBC are most consistent for Asian sites or at Saharan sites with strong local anthropogenic sources. |
format |
Article in Journal/Newspaper |
author |
Shin, Sung-Kyun Tesche, Matthias Müller, Detlef Noh, Youngmin |
author_facet |
Shin, Sung-Kyun Tesche, Matthias Müller, Detlef Noh, Youngmin |
author_sort |
Shin, Sung-Kyun |
title |
Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes |
title_short |
Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes |
title_full |
Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes |
title_fullStr |
Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes |
title_full_unstemmed |
Technical note: Absorption aerosol optical depth components from AERONET observations of mixed dust plumes |
title_sort |
technical note: absorption aerosol optical depth components from aeronet observations of mixed dust plumes |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/amt-12-607-2019 https://noa.gwlb.de/receive/cop_mods_00003426 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00003384/amt-12-607-2019.pdf https://amt.copernicus.org/articles/12/607/2019/amt-12-607-2019.pdf |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-12-607-2019 https://noa.gwlb.de/receive/cop_mods_00003426 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00003384/amt-12-607-2019.pdf https://amt.copernicus.org/articles/12/607/2019/amt-12-607-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/amt-12-607-2019 |
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12 |
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1 |
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618 |
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