Saharan dust transport and deposition towards the tropical northern Atlantic
We present a study of Saharan dust export towards the tropical North Atlantic using the regional dust emission, transport and deposition model LM-MUSCAT. Horizontal and vertical distribution of dust optical thickness, concentration, and dry and wet deposition rates are used to describe seasonality o...
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ftdoajarticles:oai:doaj.org/article:95f8a33121dc4e63b4f4c120d829d96c 2023-05-15T17:32:21+02:00 Saharan dust transport and deposition towards the tropical northern Atlantic K. Schepanski I. Tegen A. Macke 2009-02-01T00:00:00Z https://doaj.org/article/95f8a33121dc4e63b4f4c120d829d96c EN eng Copernicus Publications http://www.atmos-chem-phys.net/9/1173/2009/acp-9-1173-2009.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/95f8a33121dc4e63b4f4c120d829d96c Atmospheric Chemistry and Physics, Vol 9, Iss 4, Pp 1173-1189 (2009) Physics QC1-999 Chemistry QD1-999 article 2009 ftdoajarticles 2023-01-08T01:32:18Z We present a study of Saharan dust export towards the tropical North Atlantic using the regional dust emission, transport and deposition model LM-MUSCAT. Horizontal and vertical distribution of dust optical thickness, concentration, and dry and wet deposition rates are used to describe seasonality of dust export and deposition towards the eastern Atlantic for three typical months in different seasons. Deposition rates strongly depend on the vertical dust distribution, which differs with seasons. Furthermore the contribution of dust originating from the Bodélé Depression to Saharan dust over the Atlantic is investigated. A maximum contribution of Bodélé dust transported towards the Cape Verde Islands is evident in winter when the Bodélé source area is most active and dominant with regard to activation frequency and dust emission. Limitations of using satellite retrievals to estimate dust deposition are highlighted. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 K. Schepanski I. Tegen A. Macke Saharan dust transport and deposition towards the tropical northern Atlantic |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
We present a study of Saharan dust export towards the tropical North Atlantic using the regional dust emission, transport and deposition model LM-MUSCAT. Horizontal and vertical distribution of dust optical thickness, concentration, and dry and wet deposition rates are used to describe seasonality of dust export and deposition towards the eastern Atlantic for three typical months in different seasons. Deposition rates strongly depend on the vertical dust distribution, which differs with seasons. Furthermore the contribution of dust originating from the Bodélé Depression to Saharan dust over the Atlantic is investigated. A maximum contribution of Bodélé dust transported towards the Cape Verde Islands is evident in winter when the Bodélé source area is most active and dominant with regard to activation frequency and dust emission. Limitations of using satellite retrievals to estimate dust deposition are highlighted. |
format |
Article in Journal/Newspaper |
author |
K. Schepanski I. Tegen A. Macke |
author_facet |
K. Schepanski I. Tegen A. Macke |
author_sort |
K. Schepanski |
title |
Saharan dust transport and deposition towards the tropical northern Atlantic |
title_short |
Saharan dust transport and deposition towards the tropical northern Atlantic |
title_full |
Saharan dust transport and deposition towards the tropical northern Atlantic |
title_fullStr |
Saharan dust transport and deposition towards the tropical northern Atlantic |
title_full_unstemmed |
Saharan dust transport and deposition towards the tropical northern Atlantic |
title_sort |
saharan dust transport and deposition towards the tropical northern atlantic |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doaj.org/article/95f8a33121dc4e63b4f4c120d829d96c |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Atmospheric Chemistry and Physics, Vol 9, Iss 4, Pp 1173-1189 (2009) |
op_relation |
http://www.atmos-chem-phys.net/9/1173/2009/acp-9-1173-2009.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/95f8a33121dc4e63b4f4c120d829d96c |
_version_ |
1766130420225671168 |