Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies
A lidar method is presented that permits the estimation of height profiles of ice nuclei concentrations (INC) in desert dust layers. The polarization lidar technique is applied to separate dust and non-dust backscatter and extinction coefficients. The desert dust extinction coefficients σ d are then...
Published in: | Atmospheric Chemistry and Physics |
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Online Access: | https://doi.org/10.5194/acp-15-3463-2015 |
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ftcyprusunivt:oai:ktisis.cut.ac.cy:10488/9380 2023-05-15T13:06:25+02:00 Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies Mamouri, Rodanthi-Elisavet Ansmann, Albert 2015-03-30 pdf https://doi.org/10.5194/acp-15-3463-2015 en eng info:eu-repo/grantAgreement/EC/H2020/739530 ACTRIS PPP - Aerosols, Clouds and Trace gases Preparatory Phase Project Atmospheric Chemistry and Physics, 2015, vol. 15, no. 6, pp. 3463-3477. 1680-7316 doi:10.5194/acp-15-3463-2015 3463 3477 open AERONET Aerosol property Dust Estimation method Ice Lidar Environmental Engineering Engineering and Technology article 2015 ftcyprusunivt https://doi.org/10.5194/acp-15-3463-2015 2022-10-20T16:37:28Z A lidar method is presented that permits the estimation of height profiles of ice nuclei concentrations (INC) in desert dust layers. The polarization lidar technique is applied to separate dust and non-dust backscatter and extinction coefficients. The desert dust extinction coefficients σ d are then converted to aerosol particle number concentrations APC 280 which consider particles with radius > 280 nm only. By using profiles of APC 280 and ambient temperature T along the laser beam, the profile of INC can be estimated within a factor of 3 by means of APC-T-INC parameterizations from the literature. The observed close relationship between σ d at 500 nm and APC 280 is of key importance for a successful INC retrieval. We studied this link by means of AERONET (Aerosol Robotic Network) sun/sky photometer observations at Morocco, Cabo Verde, Barbados, and Cyprus during desert dust outbreaks. The new INC retrieval method is applied to lidar observations of dust layers with the spaceborne lidar CALIOP (Cloud Aerosol Lidar with Orthogonal Polarization) during two overpasses over the EARLINET (European Aerosol Research Lidar Network) lidar site of the Cyprus University of Technology (CUT), Limassol (34.7° N, 33° E), Cyprus. The good agreement between the CALIOP and CUT lidar retrievals of σ d , APC 280 , and INC profiles corroborates the potential of CALIOP to provide 3-D global desert dust APC 280 and INC data sets. Article in Journal/Newspaper Aerosol Robotic Network Cyprus University of Technology: Ktisis Institutional Repository Atmospheric Chemistry and Physics 15 6 3463 3477 |
institution |
Open Polar |
collection |
Cyprus University of Technology: Ktisis Institutional Repository |
op_collection_id |
ftcyprusunivt |
language |
English |
topic |
AERONET Aerosol property Dust Estimation method Ice Lidar Environmental Engineering Engineering and Technology |
spellingShingle |
AERONET Aerosol property Dust Estimation method Ice Lidar Environmental Engineering Engineering and Technology Mamouri, Rodanthi-Elisavet Ansmann, Albert Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
topic_facet |
AERONET Aerosol property Dust Estimation method Ice Lidar Environmental Engineering Engineering and Technology |
description |
A lidar method is presented that permits the estimation of height profiles of ice nuclei concentrations (INC) in desert dust layers. The polarization lidar technique is applied to separate dust and non-dust backscatter and extinction coefficients. The desert dust extinction coefficients σ d are then converted to aerosol particle number concentrations APC 280 which consider particles with radius > 280 nm only. By using profiles of APC 280 and ambient temperature T along the laser beam, the profile of INC can be estimated within a factor of 3 by means of APC-T-INC parameterizations from the literature. The observed close relationship between σ d at 500 nm and APC 280 is of key importance for a successful INC retrieval. We studied this link by means of AERONET (Aerosol Robotic Network) sun/sky photometer observations at Morocco, Cabo Verde, Barbados, and Cyprus during desert dust outbreaks. The new INC retrieval method is applied to lidar observations of dust layers with the spaceborne lidar CALIOP (Cloud Aerosol Lidar with Orthogonal Polarization) during two overpasses over the EARLINET (European Aerosol Research Lidar Network) lidar site of the Cyprus University of Technology (CUT), Limassol (34.7° N, 33° E), Cyprus. The good agreement between the CALIOP and CUT lidar retrievals of σ d , APC 280 , and INC profiles corroborates the potential of CALIOP to provide 3-D global desert dust APC 280 and INC data sets. |
format |
Article in Journal/Newspaper |
author |
Mamouri, Rodanthi-Elisavet Ansmann, Albert |
author_facet |
Mamouri, Rodanthi-Elisavet Ansmann, Albert |
author_sort |
Mamouri, Rodanthi-Elisavet |
title |
Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
title_short |
Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
title_full |
Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
title_fullStr |
Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
title_full_unstemmed |
Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
title_sort |
estimated desert-dust ice nuclei profiles from polarization lidar: methodology and case studies |
publishDate |
2015 |
url |
https://doi.org/10.5194/acp-15-3463-2015 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/739530 ACTRIS PPP - Aerosols, Clouds and Trace gases Preparatory Phase Project Atmospheric Chemistry and Physics, 2015, vol. 15, no. 6, pp. 3463-3477. 1680-7316 doi:10.5194/acp-15-3463-2015 3463 3477 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/acp-15-3463-2015 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
15 |
container_issue |
6 |
container_start_page |
3463 |
op_container_end_page |
3477 |
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1766004906298179584 |