Atmos. Chem. Phys. Discuss., 9, 13177-13198, 2009
www.atmos-chem-phys-discuss.net/9/13177/2009/
doi:10.5194/acpd-9-13177-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Patterns of Saharan dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data
Y. Ben-Ami, I. Koren, and O. Altaratz
Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, Rehovot, Israel

Abstract. One of the most important factors that determines the transported dust effect is its vertical distribution in the atmosphere. Until the launch of the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), the vertical distribution was studied mostly by in-situ measurements and models. CALIPSO, as a part of the A-Train constellation has opened an opportunity to study the transported dust vertical structure in a large number of events (sufficient statistics).

In this study the vertical structure of Saharan dust and stratiform clouds is analyzed over the Atlantic Ocean for the 2006–2007 winter (December–February) and the summer of 2006 (June–August). By using CALIPSO backscatter measurements over the dust route, 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). It suggests that a significant part of the dust is transported near and within the marine boundary layer and interacts with shallow clouds on both seasons.


Citation: Ben-Ami, Y., Koren, I., and Altaratz, O.: Patterns of Saharan dust transport over the Atlantic: winter vs. summer, based on CALIPSO first year data, Atmos. Chem. Phys. Discuss., 9, 13177-13198, doi:10.5194/acpd-9-13177-2009, 2009.
 
Search ACPD
Discussion Paper
    XML
    Citation
    Final Revised Paper
    Share