Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data
In this paper particle categorization and absorption properties were discussed to understand transport mechanisms at different geographic locations and possible radiative impacts on climate. The long-term Aerosol Robotic Network (AERONET) data set (1999–2015) is used to estimate aerosol optical dept...
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ftcopernicus:oai:publications.copernicus.org:angeo53925 2023-05-15T13:06:05+02:00 Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data Farahat, Ashraf El-Askary, Hesham Adetokunbo, Peter Fuad, Abu-Tharr 2018-09-27 application/pdf https://doi.org/10.5194/angeo-34-1031-2016 https://angeo.copernicus.org/articles/34/1031/2016/ eng eng doi:10.5194/angeo-34-1031-2016 https://angeo.copernicus.org/articles/34/1031/2016/ eISSN: 1432-0576 Text 2018 ftcopernicus https://doi.org/10.5194/angeo-34-1031-2016 2020-07-20T16:23:55Z In this paper particle categorization and absorption properties were discussed to understand transport mechanisms at different geographic locations and possible radiative impacts on climate. The long-term Aerosol Robotic Network (AERONET) data set (1999–2015) is used to estimate aerosol optical depth (AOD), single scattering albedo (SSA), and the absorption Ångström exponent ( α abs ) at eight locations in North Africa and the Middle East. Average variation in SSA is calculated at four wavelengths (440, 675, 870, and 1020 nm), and the relationship between aerosol absorption and physical properties is used to infer dominant aerosol types at different locations. It was found that seasonality and geographic location play a major role in identifying dominant aerosol types at each location. Analyzing aerosol characteristics among different sites using AERONET Version 2, Level 2.0 data retrievals and the Hybrid Single Particle Lagrangian Integrated Trajectory model (HYSPLIT) backward trajectories shows possible aerosol particle transport among different locations indicating the importance of understanding transport mechanisms in identifying aerosol sources. Text Aerosol Robotic Network Copernicus Publications: E-Journals Annales Geophysicae 34 11 1031 1044 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
In this paper particle categorization and absorption properties were discussed to understand transport mechanisms at different geographic locations and possible radiative impacts on climate. The long-term Aerosol Robotic Network (AERONET) data set (1999–2015) is used to estimate aerosol optical depth (AOD), single scattering albedo (SSA), and the absorption Ångström exponent ( α abs ) at eight locations in North Africa and the Middle East. Average variation in SSA is calculated at four wavelengths (440, 675, 870, and 1020 nm), and the relationship between aerosol absorption and physical properties is used to infer dominant aerosol types at different locations. It was found that seasonality and geographic location play a major role in identifying dominant aerosol types at each location. Analyzing aerosol characteristics among different sites using AERONET Version 2, Level 2.0 data retrievals and the Hybrid Single Particle Lagrangian Integrated Trajectory model (HYSPLIT) backward trajectories shows possible aerosol particle transport among different locations indicating the importance of understanding transport mechanisms in identifying aerosol sources. |
format |
Text |
author |
Farahat, Ashraf El-Askary, Hesham Adetokunbo, Peter Fuad, Abu-Tharr |
spellingShingle |
Farahat, Ashraf El-Askary, Hesham Adetokunbo, Peter Fuad, Abu-Tharr Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data |
author_facet |
Farahat, Ashraf El-Askary, Hesham Adetokunbo, Peter Fuad, Abu-Tharr |
author_sort |
Farahat, Ashraf |
title |
Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data |
title_short |
Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data |
title_full |
Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data |
title_fullStr |
Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data |
title_full_unstemmed |
Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data |
title_sort |
analysis of aerosol absorption properties and transport over north africa and the middle east using aeronet data |
publishDate |
2018 |
url |
https://doi.org/10.5194/angeo-34-1031-2016 https://angeo.copernicus.org/articles/34/1031/2016/ |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
eISSN: 1432-0576 |
op_relation |
doi:10.5194/angeo-34-1031-2016 https://angeo.copernicus.org/articles/34/1031/2016/ |
op_doi |
https://doi.org/10.5194/angeo-34-1031-2016 |
container_title |
Annales Geophysicae |
container_volume |
34 |
container_issue |
11 |
container_start_page |
1031 |
op_container_end_page |
1044 |
_version_ |
1766402485073739776 |