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| Titel |
Patterns of North African dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data |
| VerfasserIn |
Y. Ben-Ami, I. Koren, O. Altaratz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 9, no. 20 ; Nr. 9, no. 20 (2009-10-20), S.7867-7875 |
| Datensatznummer |
250007696
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| Publikation (Nr.) |
 copernicus.org/acp-9-7867-2009.pdf |
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| Zusammenfassung |
| 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. |
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