Triple-wavelength depolarization-ratio profiling of Saharan dust over Barbados during SALTRACE in 2013 and 2014

Haarig, Moritz; Ansmann, Albert; Althausen, Dietrich; Klepel, André; Groß, Silke; Freudenthaler, Volker; Toledano, Carlos; Mamouri, Rodanthi-Elisavet; Farrell, David A.; Prescod, Damien A.; Marinou, Eleni; Burton, Sharon P.; Gasteiger, Josef; Engelmann, Ronny; Baars, Holger

doi:https://doi.org/10.5194/acp-17-10767-2017

Articles | Volume 17, issue 17

https://doi.org/10.5194/acp-17-10767-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Saharan Aerosol Long-range Transport and Aerosol-Cloud-interaction...

https://doi.org/10.5194/acp-17-10767-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 17

Research article

|

13 Sep 2017

Research article |

| 13 Sep 2017

Triple-wavelength depolarization-ratio profiling of Saharan dust over Barbados during SALTRACE in 2013 and 2014

Moritz Haarig, Albert Ansmann, Dietrich Althausen, André Klepel, Silke Groß, Volker Freudenthaler, Carlos Toledano, Rodanthi-Elisavet Mamouri, David A. Farrell, Damien A. Prescod, Eleni Marinou, Sharon P. Burton, Josef Gasteiger, Ronny Engelmann, and Holger Baars

Data sets

Aerosol Robotic Network aerosol data base AERONET https://aeronet.gsfc.nasa.gov/

CALIPSO/CALIOP Level 2, Lidar Aerosol Profile Data, version 3.30 CALIPSO https://doi.org/10.5067/CALIOP/CALIPSO/CAL_LID_L2_05kmAPro-Prov-V3-30_L2-003.30

HYbrid Single-Particle Lagrangian Integrated Trajectory model, backward trajectory calculation tool HYSPLIT http://ready.arl.noaa.gov/HYSPLIT.php

Short summary

Our measurements performed with a lidar on Barbados give a vertical profile of Saharan dust, which was transported over 5000 km across the Atlantic. The new triple-wavelength depolarization technique reveals more information about the shape and size of dust, which will improve our understanding of the aging process of dust in the atmosphere and its representation in dust models. Changing properties of dust particles influence the solar radiation and the cloud properties and thus our climate.