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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2009-02-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/9/1173/2009/acp-9-1173-2009.pdf |
| _version_ | 1818963839664783360 |
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| author | K. Schepanski I. Tegen A. Macke |
| author_facet | K. Schepanski I. Tegen A. Macke |
| author_sort | K. Schepanski |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-20T12:51:36Z |
| format | Article |
| id | doaj.art-95f8a33121dc4e63b4f4c120d829d96c |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-20T12:51:36Z |
| publishDate | 2009-02-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-95f8a33121dc4e63b4f4c120d829d96c2022-12-21T19:40:10ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242009-02-019411731189Saharan dust transport and deposition towards the tropical northern AtlanticK. SchepanskiI. TegenA. MackeWe 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.http://www.atmos-chem-phys.net/9/1173/2009/acp-9-1173-2009.pdf |
| spellingShingle | K. Schepanski I. Tegen A. Macke Saharan dust transport and deposition towards the tropical northern Atlantic Atmospheric Chemistry and Physics |
| title | 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_short | Saharan dust transport and deposition towards the tropical northern Atlantic |
| title_sort | saharan dust transport and deposition towards the tropical northern atlantic |
| url | http://www.atmos-chem-phys.net/9/1173/2009/acp-9-1173-2009.pdf |
| work_keys_str_mv | AT kschepanski saharandusttransportanddepositiontowardsthetropicalnorthernatlantic AT itegen saharandusttransportanddepositiontowardsthetropicalnorthernatlantic AT amacke saharandusttransportanddepositiontowardsthetropicalnorthernatlantic |