Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A
Wintertime Saharan dust plumes in the vicinity of Barbados are investigated by means of airborne lidar measurements. The measurements were conducted in the framework of the EUREC4A (Elucidating the Role of Cloud-Circulation Coupling in Climate) field experiment upstream the Caribbean island in Janua...
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Online Access: | https://elib.dlr.de/187225/ https://elib.dlr.de/187225/1/acp-22-7319-2022.pdf https://acp.copernicus.org/articles/22/7319/2022/ |
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ftdlr:oai:elib.dlr.de:187225 2023-05-15T17:33:47+02:00 Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A Gutleben, Manuel Groß, Silke Martha Christian, Heske Wirth, Martin 2022-06-08 application/pdf https://elib.dlr.de/187225/ https://elib.dlr.de/187225/1/acp-22-7319-2022.pdf https://acp.copernicus.org/articles/22/7319/2022/ en eng Copernicus Publications https://elib.dlr.de/187225/1/acp-22-7319-2022.pdf Gutleben, Manuel und Groß, Silke Martha und Christian, Heske und Wirth, Martin (2022) Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A. Atmospheric Chemistry and Physics (ACP), 22, Seiten 7319-7330. Copernicus Publications. doi:10.5194/acp-22-7319-2022 <https://doi.org/10.5194/acp-22-7319-2022>. ISSN 1680-7316. cc_by CC-BY Lidar Zeitschriftenbeitrag PeerReviewed 2022 ftdlr https://doi.org/10.5194/acp-22-7319-2022 2022-07-10T23:13:01Z Wintertime Saharan dust plumes in the vicinity of Barbados are investigated by means of airborne lidar measurements. The measurements were conducted in the framework of the EUREC4A (Elucidating the Role of Cloud-Circulation Coupling in Climate) field experiment upstream the Caribbean island in January-February 2020. The combination of the water vapor differential absorption and high spectral resolution lidar techniques together with dropsonde measurements aboard the German HALO (High Altitude and Long-Range) research aircraft enable a detailed vertical and horizontal characterization of the measured dust plumes. In contrast to summertime dust transport, mineral dust aerosols were transported at lower altitudes and were always located below 3.5 km. Calculated backward trajectories affirm that the dust-laden layers have been transported in nearly constant low-level altitude over the North Atlantic Ocean. Only mixtures of dust particles with other aerosol species, i.e., biomass-burning aerosol from fires in West Africa and marine aerosol, were detected by the lidar. No pure mineral dust regimes were observed. Additionally, all the dust-laden air masses that were observed during EUREC4A came along with enhanced water vapor concentrations compared with the free atmosphere above. Such enhancements have already been observed during summertime and were found to have a great impact on radiative transfer and atmospheric stability. Other Non-Article Part of Journal/Newspaper North Atlantic German Aerospace Center: elib - DLR electronic library Atmospheric Chemistry and Physics 22 11 7319 7330 |
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German Aerospace Center: elib - DLR electronic library |
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English |
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Lidar |
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Lidar Gutleben, Manuel Groß, Silke Martha Christian, Heske Wirth, Martin Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A |
topic_facet |
Lidar |
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Wintertime Saharan dust plumes in the vicinity of Barbados are investigated by means of airborne lidar measurements. The measurements were conducted in the framework of the EUREC4A (Elucidating the Role of Cloud-Circulation Coupling in Climate) field experiment upstream the Caribbean island in January-February 2020. The combination of the water vapor differential absorption and high spectral resolution lidar techniques together with dropsonde measurements aboard the German HALO (High Altitude and Long-Range) research aircraft enable a detailed vertical and horizontal characterization of the measured dust plumes. In contrast to summertime dust transport, mineral dust aerosols were transported at lower altitudes and were always located below 3.5 km. Calculated backward trajectories affirm that the dust-laden layers have been transported in nearly constant low-level altitude over the North Atlantic Ocean. Only mixtures of dust particles with other aerosol species, i.e., biomass-burning aerosol from fires in West Africa and marine aerosol, were detected by the lidar. No pure mineral dust regimes were observed. Additionally, all the dust-laden air masses that were observed during EUREC4A came along with enhanced water vapor concentrations compared with the free atmosphere above. Such enhancements have already been observed during summertime and were found to have a great impact on radiative transfer and atmospheric stability. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Gutleben, Manuel Groß, Silke Martha Christian, Heske Wirth, Martin |
author_facet |
Gutleben, Manuel Groß, Silke Martha Christian, Heske Wirth, Martin |
author_sort |
Gutleben, Manuel |
title |
Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A |
title_short |
Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A |
title_full |
Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A |
title_fullStr |
Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A |
title_full_unstemmed |
Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A |
title_sort |
wintertime saharan dust transport towards the caribbean: an airborne lidar case study during eurec4a |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://elib.dlr.de/187225/ https://elib.dlr.de/187225/1/acp-22-7319-2022.pdf https://acp.copernicus.org/articles/22/7319/2022/ |
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North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://elib.dlr.de/187225/1/acp-22-7319-2022.pdf Gutleben, Manuel und Groß, Silke Martha und Christian, Heske und Wirth, Martin (2022) Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A. Atmospheric Chemistry and Physics (ACP), 22, Seiten 7319-7330. Copernicus Publications. doi:10.5194/acp-22-7319-2022 <https://doi.org/10.5194/acp-22-7319-2022>. ISSN 1680-7316. |
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cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-22-7319-2022 |
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Atmospheric Chemistry and Physics |
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22 |
container_issue |
11 |
container_start_page |
7319 |
op_container_end_page |
7330 |
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1766132406635462656 |