Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ...
Saharan dust intrusions strongly impact Atlantic and Mediterranean coastal regions. Today, most operational dust forecasts extend only 2–5 days. Here we show that on timescales of weeks to months, North African dust emission and transport are impacted by sudden stratospheric warmings (SSWs), which e...
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ftdatacite:10.3929/ethz-b-000589183 2024-04-28T08:30:38+00:00 Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... Dai, Ying Hitchcock, Peter Mahowald, Natalie M. Domeisen, Daniela Hamilton, Douglas S. Li, Longlei Marticorena, Beatrice Kanakidou, Maria Mihalopoulos, Nikolaos Aboagye-Okyere, Adwoa 2022 application/pdf https://dx.doi.org/10.3929/ethz-b-000589183 http://hdl.handle.net/20.500.11850/589183 en eng ETH Zurich article-journal Text ScholarlyArticle Journal Article 2022 ftdatacite https://doi.org/10.3929/ethz-b-000589183 2024-04-02T12:32:08Z Saharan dust intrusions strongly impact Atlantic and Mediterranean coastal regions. Today, most operational dust forecasts extend only 2–5 days. Here we show that on timescales of weeks to months, North African dust emission and transport are impacted by sudden stratospheric warmings (SSWs), which establish a negative North Atlantic Oscillation-like surface signal. Chemical transport models show a large-scale dipolar dust response to SSWs, with the burden in the Eastern Mediterranean enhanced up to 30% and a corresponding reduction in West Africa. Observations of inhalable particulate (PM10) concentrations and aerosol optical depth confirm this dipole. On average, a single SSW causes 680–2460 additional premature deaths in the Eastern Mediterranean and prevents 1180–2040 premature deaths in West Africa from exposure to dust-source fine particulate (PM2.5). Currently, SSWs are predictable 1–2 weeks in advance. Altogether, the stratosphere represents an important source of subseasonal predictability for air ... : Nature Communications, 13 (1) ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
description |
Saharan dust intrusions strongly impact Atlantic and Mediterranean coastal regions. Today, most operational dust forecasts extend only 2–5 days. Here we show that on timescales of weeks to months, North African dust emission and transport are impacted by sudden stratospheric warmings (SSWs), which establish a negative North Atlantic Oscillation-like surface signal. Chemical transport models show a large-scale dipolar dust response to SSWs, with the burden in the Eastern Mediterranean enhanced up to 30% and a corresponding reduction in West Africa. Observations of inhalable particulate (PM10) concentrations and aerosol optical depth confirm this dipole. On average, a single SSW causes 680–2460 additional premature deaths in the Eastern Mediterranean and prevents 1180–2040 premature deaths in West Africa from exposure to dust-source fine particulate (PM2.5). Currently, SSWs are predictable 1–2 weeks in advance. Altogether, the stratosphere represents an important source of subseasonal predictability for air ... : Nature Communications, 13 (1) ... |
format |
Article in Journal/Newspaper |
author |
Dai, Ying Hitchcock, Peter Mahowald, Natalie M. Domeisen, Daniela Hamilton, Douglas S. Li, Longlei Marticorena, Beatrice Kanakidou, Maria Mihalopoulos, Nikolaos Aboagye-Okyere, Adwoa |
spellingShingle |
Dai, Ying Hitchcock, Peter Mahowald, Natalie M. Domeisen, Daniela Hamilton, Douglas S. Li, Longlei Marticorena, Beatrice Kanakidou, Maria Mihalopoulos, Nikolaos Aboagye-Okyere, Adwoa Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... |
author_facet |
Dai, Ying Hitchcock, Peter Mahowald, Natalie M. Domeisen, Daniela Hamilton, Douglas S. Li, Longlei Marticorena, Beatrice Kanakidou, Maria Mihalopoulos, Nikolaos Aboagye-Okyere, Adwoa |
author_sort |
Dai, Ying |
title |
Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... |
title_short |
Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... |
title_full |
Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... |
title_fullStr |
Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... |
title_full_unstemmed |
Stratospheric impacts on dust transport and air pollution in West Africa and the Eastern Mediterranean ... |
title_sort |
stratospheric impacts on dust transport and air pollution in west africa and the eastern mediterranean ... |
publisher |
ETH Zurich |
publishDate |
2022 |
url |
https://dx.doi.org/10.3929/ethz-b-000589183 http://hdl.handle.net/20.500.11850/589183 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_doi |
https://doi.org/10.3929/ethz-b-000589183 |
_version_ |
1797588431215263744 |