Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data
One of the most important factors that determine the transported dust effect on the atmosphere is its vertical distribution. In this study the vertical structure of North African dust and stratiform low clouds is analyzed over the Atlantic Ocean for the 2006–2007 boreal winter (December–February) an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2009-10-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/9/7867/2009/acp-9-7867-2009.pdf |
| _version_ | 1818757015949803520 |
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| author | Y. Ben-Ami I. Koren O. Altaratz |
| author_facet | Y. Ben-Ami I. Koren O. Altaratz |
| author_sort | Y. Ben-Ami |
| collection | DOAJ |
| description | One of the most important factors that determine the transported dust effect on the atmosphere is its vertical distribution. In this study the vertical structure of North African dust and stratiform low clouds is analyzed over the Atlantic Ocean for the 2006–2007 boreal winter (December–February) and boreal summer of 2006 (June–August). By using the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) backscatter measurements over the dust routes, we describe the differences in dust transport between the seasons. We show a bi-modal distribution of the average dust plumes height in both seasons (it is less clear in the winter). The higher plume top height is 5.1±0.4 km, near the African coast line in the summer and 3.7±0.4 km in the winter. The lower plume merges with the marine boundary layer, in both seasons. Our study suggests that a significant part of the dust is transported near and within the marine boundary layer and interacts with low stratiform clouds. |
| first_indexed | 2024-12-18T06:04:13Z |
| format | Article |
| id | doaj.art-ee95cc6b34d742838a68573cb106b1b4 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-18T06:04:13Z |
| publishDate | 2009-10-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-ee95cc6b34d742838a68573cb106b1b42022-12-21T21:18:36ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242009-10-0192078677875Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year dataY. Ben-AmiI. KorenO. AltaratzOne of the most important factors that determine the transported dust effect on the atmosphere is its vertical distribution. In this study the vertical structure of North African dust and stratiform low clouds is analyzed over the Atlantic Ocean for the 2006–2007 boreal winter (December–February) and boreal summer of 2006 (June–August). By using the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) backscatter measurements over the dust routes, we describe the differences in dust transport between the seasons. We show a bi-modal distribution of the average dust plumes height in both seasons (it is less clear in the winter). The higher plume top height is 5.1±0.4 km, near the African coast line in the summer and 3.7±0.4 km in the winter. The lower plume merges with the marine boundary layer, in both seasons. Our study suggests that a significant part of the dust is transported near and within the marine boundary layer and interacts with low stratiform clouds.http://www.atmos-chem-phys.net/9/7867/2009/acp-9-7867-2009.pdf |
| spellingShingle | Y. Ben-Ami I. Koren O. Altaratz Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data Atmospheric Chemistry and Physics |
| title | Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data |
| title_full | Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data |
| title_fullStr | Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data |
| title_full_unstemmed | Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data |
| title_short | Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data |
| title_sort | patterns of north african dust transport over the atlantic winter vs summer based on calipso first year data |
| url | http://www.atmos-chem-phys.net/9/7867/2009/acp-9-7867-2009.pdf |
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