Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE
The Saharan Aerosol Long-Range Transport and Aerosol–Cloud-Interaction Experiment (SALTRACE) was devoted to the investigation of Saharan dust properties over the Caribbean. The campaign took place in June–July 2013. A wide set of ground-based and airborne aerosol instrumentation was deployed at the...
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ftdoajarticles:oai:doaj.org/article:0094f36ee15044b39b187269d7153efa 2023-05-15T13:06:38+02:00 Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE C. Toledano B. Torres C. Velasco-Merino D. Althausen S. Groß M. Wiegner B. Weinzierl J. Gasteiger A. Ansmann R. González D. Mateos D. Farrel T. Müller M. Haarig V. E. Cachorro 2019-12-01T00:00:00Z https://doi.org/10.5194/acp-19-14571-2019 https://doaj.org/article/0094f36ee15044b39b187269d7153efa EN eng Copernicus Publications https://www.atmos-chem-phys.net/19/14571/2019/acp-19-14571-2019.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-19-14571-2019 1680-7316 1680-7324 https://doaj.org/article/0094f36ee15044b39b187269d7153efa Atmospheric Chemistry and Physics, Vol 19, Pp 14571-14583 (2019) Physics QC1-999 Chemistry QD1-999 article 2019 ftdoajarticles https://doi.org/10.5194/acp-19-14571-2019 2022-12-31T13:04:56Z The Saharan Aerosol Long-Range Transport and Aerosol–Cloud-Interaction Experiment (SALTRACE) was devoted to the investigation of Saharan dust properties over the Caribbean. The campaign took place in June–July 2013. A wide set of ground-based and airborne aerosol instrumentation was deployed at the island of Barbados for a comprehensive experiment. Several sun photometers performed measurements during this campaign: two AERONET (Aerosol Robotic Network) Cimel sun photometers and the Sun and Sky Automatic Radiometer (SSARA). The sun photometers were co-located with the ground-based multi-wavelength lidars BERTHA (Backscatter Extinction lidar Ratio Temperature Humidity profiling Apparatus) and POLIS (Portable Lidar System). Aerosol properties derived from direct sun and sky radiance observations are analyzed, and a comparison with the co-located lidar and in situ data is provided. The time series of aerosol optical depth (AOD) allows identifying successive dust events with short periods in between in which the marine background conditions were observed. The moderate aerosol optical depth in the range of 0.3 to 0.6 was found during the dust periods. The sun photometer infrared channel at the 1640 nm wavelength was used in the retrieval to investigate possible improvements to aerosol size retrievals, and it was expected to have a larger sensitivity to coarse particles. The comparison between column (aerosol optical depth) and surface (dust concentration) data demonstrates the connection between the Saharan Air Layer and the boundary layer in the Caribbean region, as is shown by the synchronized detection of the successive dust events in both datasets. However the differences of size distributions derived from sun photometer data and in situ observations reveal the difficulties in carrying out a column closure study. Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles Atmospheric Chemistry and Physics 19 23 14571 14583 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 C. Toledano B. Torres C. Velasco-Merino D. Althausen S. Groß M. Wiegner B. Weinzierl J. Gasteiger A. Ansmann R. González D. Mateos D. Farrel T. Müller M. Haarig V. E. Cachorro Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The Saharan Aerosol Long-Range Transport and Aerosol–Cloud-Interaction Experiment (SALTRACE) was devoted to the investigation of Saharan dust properties over the Caribbean. The campaign took place in June–July 2013. A wide set of ground-based and airborne aerosol instrumentation was deployed at the island of Barbados for a comprehensive experiment. Several sun photometers performed measurements during this campaign: two AERONET (Aerosol Robotic Network) Cimel sun photometers and the Sun and Sky Automatic Radiometer (SSARA). The sun photometers were co-located with the ground-based multi-wavelength lidars BERTHA (Backscatter Extinction lidar Ratio Temperature Humidity profiling Apparatus) and POLIS (Portable Lidar System). Aerosol properties derived from direct sun and sky radiance observations are analyzed, and a comparison with the co-located lidar and in situ data is provided. The time series of aerosol optical depth (AOD) allows identifying successive dust events with short periods in between in which the marine background conditions were observed. The moderate aerosol optical depth in the range of 0.3 to 0.6 was found during the dust periods. The sun photometer infrared channel at the 1640 nm wavelength was used in the retrieval to investigate possible improvements to aerosol size retrievals, and it was expected to have a larger sensitivity to coarse particles. The comparison between column (aerosol optical depth) and surface (dust concentration) data demonstrates the connection between the Saharan Air Layer and the boundary layer in the Caribbean region, as is shown by the synchronized detection of the successive dust events in both datasets. However the differences of size distributions derived from sun photometer data and in situ observations reveal the difficulties in carrying out a column closure study. |
format |
Article in Journal/Newspaper |
author |
C. Toledano B. Torres C. Velasco-Merino D. Althausen S. Groß M. Wiegner B. Weinzierl J. Gasteiger A. Ansmann R. González D. Mateos D. Farrel T. Müller M. Haarig V. E. Cachorro |
author_facet |
C. Toledano B. Torres C. Velasco-Merino D. Althausen S. Groß M. Wiegner B. Weinzierl J. Gasteiger A. Ansmann R. González D. Mateos D. Farrel T. Müller M. Haarig V. E. Cachorro |
author_sort |
C. Toledano |
title |
Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE |
title_short |
Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE |
title_full |
Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE |
title_fullStr |
Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE |
title_full_unstemmed |
Sun photometer retrievals of Saharan dust properties over Barbados during SALTRACE |
title_sort |
sun photometer retrievals of saharan dust properties over barbados during saltrace |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-19-14571-2019 https://doaj.org/article/0094f36ee15044b39b187269d7153efa |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Atmospheric Chemistry and Physics, Vol 19, Pp 14571-14583 (2019) |
op_relation |
https://www.atmos-chem-phys.net/19/14571/2019/acp-19-14571-2019.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-19-14571-2019 1680-7316 1680-7324 https://doaj.org/article/0094f36ee15044b39b187269d7153efa |
op_doi |
https://doi.org/10.5194/acp-19-14571-2019 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
19 |
container_issue |
23 |
container_start_page |
14571 |
op_container_end_page |
14583 |
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1766014481137139712 |