New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel
On 7 September 2015, an unprecedented and unexceptional extreme dust storm struck the eastern Mediterranean (EM) basin. Here, we provide an overview of the previous studies and describe the dust plume evolution over a relatively small area, i.e., Israel. This study presents vertical profiles provide...
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ftdoajarticles:oai:doaj.org/article:228c467e64174fd7b60068142f364bac 2023-05-15T13:06:36+02:00 New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel L. Uzan S. Egert P. Alpert 2018-03-01T00:00:00Z https://doi.org/10.5194/acp-18-3203-2018 https://doaj.org/article/228c467e64174fd7b60068142f364bac EN eng Copernicus Publications https://www.atmos-chem-phys.net/18/3203/2018/acp-18-3203-2018.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-18-3203-2018 1680-7316 1680-7324 https://doaj.org/article/228c467e64174fd7b60068142f364bac Atmospheric Chemistry and Physics, Vol 18, Pp 3203-3221 (2018) Physics QC1-999 Chemistry QD1-999 article 2018 ftdoajarticles https://doi.org/10.5194/acp-18-3203-2018 2022-12-31T13:02:37Z On 7 September 2015, an unprecedented and unexceptional extreme dust storm struck the eastern Mediterranean (EM) basin. Here, we provide an overview of the previous studies and describe the dust plume evolution over a relatively small area, i.e., Israel. This study presents vertical profiles provided by an array of eight ceilometers covering the Israeli shore, inland and mountain regions. We employ multiple tools including spectral radiometers (Aerosol Robotic Network – AERONET), ground particulate matter concentrations, satellite images, global/diffuse/direct solar radiation measurements and radiosonde profiles. The main findings reveal that the dust plume penetrated Israel on 7 September from the northeast in a downward motion to southwest. On 8 September, the lower level of the dust plume reached 200 m above ground level, generating aerosol optical depth (AOD) above 3 and extreme ground particulate matter concentrations up to ∼ 10 000 µm m −3 . A most interesting feature on 8 September was the very high variability in the surface solar radiation in the range of 200–600 W m −2 (22 sites) over just a distance of several hundred kilometers in spite of the thick dust layer above. Furthermore, 8 September shows the lowest radiation levels for this event. On the following day, the surface solar radiation increased, thus enabling a late (between 11:00 and 12:00 UTC) sea breeze development mainly in the coastal zone associated with a creation of a narrow dust layer detached from the ground. On 10 September, the AOD values started to drop down to ∼ 1.5, and the surface concentrations of particulate matter decreased as well as the ceilometers' aerosol indications (signal counts) although Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) revealed an upper dust layer remained. Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles Atmospheric Chemistry and Physics 18 5 3203 3221 |
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Physics QC1-999 Chemistry QD1-999 L. Uzan S. Egert P. Alpert New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
On 7 September 2015, an unprecedented and unexceptional extreme dust storm struck the eastern Mediterranean (EM) basin. Here, we provide an overview of the previous studies and describe the dust plume evolution over a relatively small area, i.e., Israel. This study presents vertical profiles provided by an array of eight ceilometers covering the Israeli shore, inland and mountain regions. We employ multiple tools including spectral radiometers (Aerosol Robotic Network – AERONET), ground particulate matter concentrations, satellite images, global/diffuse/direct solar radiation measurements and radiosonde profiles. The main findings reveal that the dust plume penetrated Israel on 7 September from the northeast in a downward motion to southwest. On 8 September, the lower level of the dust plume reached 200 m above ground level, generating aerosol optical depth (AOD) above 3 and extreme ground particulate matter concentrations up to ∼ 10 000 µm m −3 . A most interesting feature on 8 September was the very high variability in the surface solar radiation in the range of 200–600 W m −2 (22 sites) over just a distance of several hundred kilometers in spite of the thick dust layer above. Furthermore, 8 September shows the lowest radiation levels for this event. On the following day, the surface solar radiation increased, thus enabling a late (between 11:00 and 12:00 UTC) sea breeze development mainly in the coastal zone associated with a creation of a narrow dust layer detached from the ground. On 10 September, the AOD values started to drop down to ∼ 1.5, and the surface concentrations of particulate matter decreased as well as the ceilometers' aerosol indications (signal counts) although Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) revealed an upper dust layer remained. |
format |
Article in Journal/Newspaper |
author |
L. Uzan S. Egert P. Alpert |
author_facet |
L. Uzan S. Egert P. Alpert |
author_sort |
L. Uzan |
title |
New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel |
title_short |
New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel |
title_full |
New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel |
title_fullStr |
New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel |
title_full_unstemmed |
New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel |
title_sort |
new insights into the vertical structure of the september 2015 dust storm employing eight ceilometers and auxiliary measurements over israel |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-3203-2018 https://doaj.org/article/228c467e64174fd7b60068142f364bac |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Atmospheric Chemistry and Physics, Vol 18, Pp 3203-3221 (2018) |
op_relation |
https://www.atmos-chem-phys.net/18/3203/2018/acp-18-3203-2018.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-18-3203-2018 1680-7316 1680-7324 https://doaj.org/article/228c467e64174fd7b60068142f364bac |
op_doi |
https://doi.org/10.5194/acp-18-3203-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
5 |
container_start_page |
3203 |
op_container_end_page |
3221 |
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