Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-52-14-3178. Systematic or multiple reproduction or distribution t...
Published in: | Applied Optics |
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Main Authors: | , , , , , |
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Language: | English |
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2013
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Online Access: | http://hdl.handle.net/2299/11195 |
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ftunivhertford:oai:uhra.herts.ac.uk:2299/11195 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
University of Hertfordshire: UH Research Archive |
op_collection_id |
ftunivhertford |
language |
English |
topic |
MICROPHYSICAL PARTICLE PARAMETERS SIZE DISTRIBUTION SPECTRAL-RESOLUTION LIDAR SKY RADIANCE MEASUREMENTS SAHARAN DUST RAMAN-LIDAR CAPE-VERDE AEROSOL OPTICAL-PROPERTIES SAMUM 2006 MINERAL DUST |
spellingShingle |
MICROPHYSICAL PARTICLE PARAMETERS SIZE DISTRIBUTION SPECTRAL-RESOLUTION LIDAR SKY RADIANCE MEASUREMENTS SAHARAN DUST RAMAN-LIDAR CAPE-VERDE AEROSOL OPTICAL-PROPERTIES SAMUM 2006 MINERAL DUST Mueller, D. Veselovskii, Igor Kolgotin, Alexei Tesche, Matthias Ansmann, Albert Dubovik, Oleg Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations |
topic_facet |
MICROPHYSICAL PARTICLE PARAMETERS SIZE DISTRIBUTION SPECTRAL-RESOLUTION LIDAR SKY RADIANCE MEASUREMENTS SAHARAN DUST RAMAN-LIDAR CAPE-VERDE AEROSOL OPTICAL-PROPERTIES SAMUM 2006 MINERAL DUST |
description |
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-52-14-3178. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law We present for the first time vertical profiles of microphysical properties of pure mineral dust (largely unaffected by any other aerosol types) on the basis of the inversion of optical data collected with multiwavelength polarization Raman lidar. The data were taken during the Saharan Mineral Dust Experiment (SAMUM) in Morocco in 2006. We also investigated two cases of mixed dust-smoke plumes on the basis of data collected during the second SAMUM field campaign that took place in the Republic of Cape Verde in 2008. Following the experience of the Aerosol Robotic Network (AERONET), the dust is modeled as a mixture of spherical particles and randomly oriented spheroids. The retrieval is performed from the full set of lidar input data (three backscatter coefficients, two extinction coefficients, and one depolarization ratio) and from a reduced set of data in which we exclude the depolarization ratio. We find differences of the microphysical properties depending on what kind of optical data combination we use. For the case of pure mineral dust, the results from these two sets of optical data are consistent and confirm the validity of the spheroid particle model for data inversion. Our results indicate that in the case of pure mineral dust we do not need depolarization information in the inversion. For the mixture of dust and biomass burning, there seem to be more limitations in the retrieval accuracy of the various data products. The evaluation of the quality of our data products is done by comparing our lidar-derived data products (vertically resolved) to results from AERONET Sun photometer observations (column-averaged) carried out at the lidar field site. Our results for dust effective radius show agreement with the AERONET observations within the retrieval uncertainties. Regarding the complex refractive index a comparison is difficult, as AERONET provides this parameter as wavelength-dependent quantity. In contrast, our inversion algorithm provides this parameter as a wavelength-independent quantity. We also show some comparison to results from airborne in situ observation. A detailed comparison to in situ results will be left for a future contribution. (c) 2013 Optical Society of America Peer reviewed |
author2 |
School of Physics, Astronomy and Mathematics Science & Technology Research Institute Centre for Atmospheric and Climate Physics Research |
author |
Mueller, D. Veselovskii, Igor Kolgotin, Alexei Tesche, Matthias Ansmann, Albert Dubovik, Oleg |
author_facet |
Mueller, D. Veselovskii, Igor Kolgotin, Alexei Tesche, Matthias Ansmann, Albert Dubovik, Oleg |
author_sort |
Mueller, D. |
title |
Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations |
title_short |
Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations |
title_full |
Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations |
title_fullStr |
Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations |
title_full_unstemmed |
Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations |
title_sort |
vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength raman/polarization lidar data and comparison to aeronet retrievals and in situ observations |
publishDate |
2013 |
url |
http://hdl.handle.net/2299/11195 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
Applied Optics Mueller , D , Veselovskii , I , Kolgotin , A , Tesche , M , Ansmann , A & Dubovik , O 2013 , ' Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations ' , Applied Optics , vol. 52 , no. 14 , pp. 3178-3202 . https://doi.org/10.1364/AO.52.003178 1559-128X PURE: 1978191 PURE UUID: ddf7adf5-e61b-4ea4-a6e4-4e4146d3186d WOS: 000318994500008 Scopus: 84878427976 ORCID: /0000-0002-0203-7654/work/68611584 http://hdl.handle.net/2299/11195 |
container_title |
Applied Optics |
container_volume |
52 |
container_issue |
14 |
container_start_page |
3178 |
_version_ |
1766044062566055936 |
spelling |
ftunivhertford:oai:uhra.herts.ac.uk:2299/11195 2023-05-15T13:07:16+02:00 Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations Mueller, D. Veselovskii, Igor Kolgotin, Alexei Tesche, Matthias Ansmann, Albert Dubovik, Oleg School of Physics, Astronomy and Mathematics Science & Technology Research Institute Centre for Atmospheric and Climate Physics Research 2013-05-10 25 http://hdl.handle.net/2299/11195 eng eng Applied Optics Mueller , D , Veselovskii , I , Kolgotin , A , Tesche , M , Ansmann , A & Dubovik , O 2013 , ' Vertical profiles of pure dust and mixed smoke-dust plumes inferred from inversion of multiwavelength Raman/polarization lidar data and comparison to AERONET retrievals and in situ observations ' , Applied Optics , vol. 52 , no. 14 , pp. 3178-3202 . https://doi.org/10.1364/AO.52.003178 1559-128X PURE: 1978191 PURE UUID: ddf7adf5-e61b-4ea4-a6e4-4e4146d3186d WOS: 000318994500008 Scopus: 84878427976 ORCID: /0000-0002-0203-7654/work/68611584 http://hdl.handle.net/2299/11195 MICROPHYSICAL PARTICLE PARAMETERS SIZE DISTRIBUTION SPECTRAL-RESOLUTION LIDAR SKY RADIANCE MEASUREMENTS SAHARAN DUST RAMAN-LIDAR CAPE-VERDE AEROSOL OPTICAL-PROPERTIES SAMUM 2006 MINERAL DUST 2013 ftunivhertford 2021-11-05T00:00:56Z This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-52-14-3178. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law We present for the first time vertical profiles of microphysical properties of pure mineral dust (largely unaffected by any other aerosol types) on the basis of the inversion of optical data collected with multiwavelength polarization Raman lidar. The data were taken during the Saharan Mineral Dust Experiment (SAMUM) in Morocco in 2006. We also investigated two cases of mixed dust-smoke plumes on the basis of data collected during the second SAMUM field campaign that took place in the Republic of Cape Verde in 2008. Following the experience of the Aerosol Robotic Network (AERONET), the dust is modeled as a mixture of spherical particles and randomly oriented spheroids. The retrieval is performed from the full set of lidar input data (three backscatter coefficients, two extinction coefficients, and one depolarization ratio) and from a reduced set of data in which we exclude the depolarization ratio. We find differences of the microphysical properties depending on what kind of optical data combination we use. For the case of pure mineral dust, the results from these two sets of optical data are consistent and confirm the validity of the spheroid particle model for data inversion. Our results indicate that in the case of pure mineral dust we do not need depolarization information in the inversion. For the mixture of dust and biomass burning, there seem to be more limitations in the retrieval accuracy of the various data products. The evaluation of the quality of our data products is done by comparing our lidar-derived data products (vertically resolved) to results from AERONET Sun photometer observations (column-averaged) carried out at the lidar field site. Our results for dust effective radius show agreement with the AERONET observations within the retrieval uncertainties. Regarding the complex refractive index a comparison is difficult, as AERONET provides this parameter as wavelength-dependent quantity. In contrast, our inversion algorithm provides this parameter as a wavelength-independent quantity. We also show some comparison to results from airborne in situ observation. A detailed comparison to in situ results will be left for a future contribution. (c) 2013 Optical Society of America Peer reviewed Other/Unknown Material Aerosol Robotic Network University of Hertfordshire: UH Research Archive Applied Optics 52 14 3178 |