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 σd are then...
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ftleibnizopen:oai:oai.leibnizopen.de:FR6CMYsBBwLIz6xG2SYE 2023-11-12T03:59:49+01:00 Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies Mamouri, R.E. Ansmann, A. 2015 application/pdf https://doi.org/10.34657/5082 https://oa.tib.eu/renate/handle/123456789/290 eng eng München : European Geopyhsical Union CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Atmospheric Chemistry and Physics, Volume 15, Issue 6, Page 3463-3477 AERONET aerosol property dust estimation method ice lidar methodology particle size temperature profile 550 article Text 2015 ftleibnizopen https://doi.org/10.34657/5082 2023-10-15T23:19:46Z 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 σd are then converted to aerosol particle number concentrations APC280 which consider particles with radius > 280 nm only. By using profiles of APC280 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 σd at 500 nm and APC280 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 σd, APC280, and INC profiles corroborates the potential of CALIOP to provide 3-D global desert dust APC280 and INC data sets. publishedVersion Article in Journal/Newspaper Aerosol Robotic Network Unknown |
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Open Polar |
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ftleibnizopen |
language |
English |
topic |
AERONET aerosol property dust estimation method ice lidar methodology particle size temperature profile 550 |
spellingShingle |
AERONET aerosol property dust estimation method ice lidar methodology particle size temperature profile 550 Mamouri, R.E. Ansmann, A. Estimated desert-dust ice nuclei profiles from polarization lidar: Methodology and case studies |
topic_facet |
AERONET aerosol property dust estimation method ice lidar methodology particle size temperature profile 550 |
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 σd are then converted to aerosol particle number concentrations APC280 which consider particles with radius > 280 nm only. By using profiles of APC280 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 σd at 500 nm and APC280 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 σd, APC280, and INC profiles corroborates the potential of CALIOP to provide 3-D global desert dust APC280 and INC data sets. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Mamouri, R.E. Ansmann, A. |
author_facet |
Mamouri, R.E. Ansmann, A. |
author_sort |
Mamouri, R.E. |
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 |
publisher |
München : European Geopyhsical Union |
publishDate |
2015 |
url |
https://doi.org/10.34657/5082 https://oa.tib.eu/renate/handle/123456789/290 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Atmospheric Chemistry and Physics, Volume 15, Issue 6, Page 3463-3477 |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.34657/5082 |
_version_ |
1782336682789437440 |