Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017
International audience Multi-angle polarimetric (MAP) imaging of Earth scenes can be used for the retrieval of microphysical and optical parameters of aerosols and clouds. The Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) is an aircraft MAP instrument with a hyper-angular imaging capability o...
Published in: | Atmospheric Measurement Techniques |
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Online Access: | https://hal.science/hal-03009279 https://hal.science/hal-03009279/document https://hal.science/hal-03009279/file/Puthukkudy%20et%20al%202020.pdf https://doi.org/10.5194/amt-13-5207-2020 |
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ftanrparis:oai:HAL:hal-03009279v1 2024-09-15T17:35:16+00:00 Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 Puthukkudy, Anin Martins, J. Vanderlei, Vanderlei Remer, Lorraine, A Xu, Xiaoguang Dubovik, O. Litvinov, Pavel Mcbride, Brent Burton, Sharon Barbosa, Henrique, M J Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) ANR-11-LABX-0005,Cappa,Physiques et Chimie de l'Environnement Atmosphérique(2011) 2020 https://hal.science/hal-03009279 https://hal.science/hal-03009279/document https://hal.science/hal-03009279/file/Puthukkudy%20et%20al%202020.pdf https://doi.org/10.5194/amt-13-5207-2020 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-13-5207-2020 hal-03009279 https://hal.science/hal-03009279 https://hal.science/hal-03009279/document https://hal.science/hal-03009279/file/Puthukkudy%20et%20al%202020.pdf doi:10.5194/amt-13-5207-2020 info:eu-repo/semantics/OpenAccess ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques https://hal.science/hal-03009279 Atmospheric Measurement Techniques, 2020, 13 (10), pp.5207 - 5236. ⟨10.5194/amt-13-5207-2020⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftanrparis https://doi.org/10.5194/amt-13-5207-2020 2024-07-12T11:12:25Z International audience Multi-angle polarimetric (MAP) imaging of Earth scenes can be used for the retrieval of microphysical and optical parameters of aerosols and clouds. The Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) is an aircraft MAP instrument with a hyper-angular imaging capability of 60 along-track viewing angles at 670 nm and 20 along-track viewing angles at other wavelengths-440, 550, and 870 nm-across the full 114 • (94 •) along-track (cross-track) field of view. Here we report the retrieval of aerosol properties using the Generalized Retrieval of Aerosols and Surface Properties (GRASP) algorithm applied to AirHARP observations collected during the NASA Aerosol Characterization from Polarimeter and Lidar (ACEPOL) campaign in October-November 2017. The retrieved aerosol properties include spherical fraction (SF), aerosol column concentration in multiple size distribution modes, and, with sufficient aerosol loading, complex aerosol refractive index. From these primary retrievals, we derive aerosol optical depth (AOD), Angstrom exponent (AE), and single scattering albedo (SSA). AODs retrieved from AirHARP measurements are compared with the High Spectral Resolution LiDAR-2 (HSRL2) AOD measurements at 532 nm and validated with measurements from collocated Aerosol Robotic NETwork (AERONET) stations. A good agreement with HSRL2 (ρ = 0.940, |BIAS| = 0.062, mean absolute error (MAE) = 0.122) and AERONET AOD (0.010 ≤ MAE ≤ 0.015, 0.002 ≤ |BIAS| ≤ 0.009) measurements is observed for the collocated points. There was a mismatch between the HSRL2-and AirHARP-retrieved AOD for the pixels close to the forest fire smoke source and to the edges of the plume due to spatial mismatch in the sampling. This resulted in a higher BIAS and MAE for the HSRL2 AOD comparison. For the case of AERONET AOD comparison, two different approaches are used in the GRASP retrievals, and the simplified aerosol component-based GRASP/Models kernel which retrieves fewer number of aerosol parameter performed well compared to a more ... Article in Journal/Newspaper Aerosol Robotic Network Portail HAL-ANR (Agence Nationale de la Recherche) Atmospheric Measurement Techniques 13 10 5207 5236 |
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Portail HAL-ANR (Agence Nationale de la Recherche) |
op_collection_id |
ftanrparis |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Puthukkudy, Anin Martins, J. Vanderlei, Vanderlei Remer, Lorraine, A Xu, Xiaoguang Dubovik, O. Litvinov, Pavel Mcbride, Brent Burton, Sharon Barbosa, Henrique, M J Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Multi-angle polarimetric (MAP) imaging of Earth scenes can be used for the retrieval of microphysical and optical parameters of aerosols and clouds. The Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) is an aircraft MAP instrument with a hyper-angular imaging capability of 60 along-track viewing angles at 670 nm and 20 along-track viewing angles at other wavelengths-440, 550, and 870 nm-across the full 114 • (94 •) along-track (cross-track) field of view. Here we report the retrieval of aerosol properties using the Generalized Retrieval of Aerosols and Surface Properties (GRASP) algorithm applied to AirHARP observations collected during the NASA Aerosol Characterization from Polarimeter and Lidar (ACEPOL) campaign in October-November 2017. The retrieved aerosol properties include spherical fraction (SF), aerosol column concentration in multiple size distribution modes, and, with sufficient aerosol loading, complex aerosol refractive index. From these primary retrievals, we derive aerosol optical depth (AOD), Angstrom exponent (AE), and single scattering albedo (SSA). AODs retrieved from AirHARP measurements are compared with the High Spectral Resolution LiDAR-2 (HSRL2) AOD measurements at 532 nm and validated with measurements from collocated Aerosol Robotic NETwork (AERONET) stations. A good agreement with HSRL2 (ρ = 0.940, |BIAS| = 0.062, mean absolute error (MAE) = 0.122) and AERONET AOD (0.010 ≤ MAE ≤ 0.015, 0.002 ≤ |BIAS| ≤ 0.009) measurements is observed for the collocated points. There was a mismatch between the HSRL2-and AirHARP-retrieved AOD for the pixels close to the forest fire smoke source and to the edges of the plume due to spatial mismatch in the sampling. This resulted in a higher BIAS and MAE for the HSRL2 AOD comparison. For the case of AERONET AOD comparison, two different approaches are used in the GRASP retrievals, and the simplified aerosol component-based GRASP/Models kernel which retrieves fewer number of aerosol parameter performed well compared to a more ... |
author2 |
Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) ANR-11-LABX-0005,Cappa,Physiques et Chimie de l'Environnement Atmosphérique(2011) |
format |
Article in Journal/Newspaper |
author |
Puthukkudy, Anin Martins, J. Vanderlei, Vanderlei Remer, Lorraine, A Xu, Xiaoguang Dubovik, O. Litvinov, Pavel Mcbride, Brent Burton, Sharon Barbosa, Henrique, M J |
author_facet |
Puthukkudy, Anin Martins, J. Vanderlei, Vanderlei Remer, Lorraine, A Xu, Xiaoguang Dubovik, O. Litvinov, Pavel Mcbride, Brent Burton, Sharon Barbosa, Henrique, M J |
author_sort |
Puthukkudy, Anin |
title |
Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 |
title_short |
Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 |
title_full |
Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 |
title_fullStr |
Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 |
title_full_unstemmed |
Retrieval of aerosol properties from Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) observations during ACEPOL 2017 |
title_sort |
retrieval of aerosol properties from airborne hyper-angular rainbow polarimeter (airharp) observations during acepol 2017 |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03009279 https://hal.science/hal-03009279/document https://hal.science/hal-03009279/file/Puthukkudy%20et%20al%202020.pdf https://doi.org/10.5194/amt-13-5207-2020 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques https://hal.science/hal-03009279 Atmospheric Measurement Techniques, 2020, 13 (10), pp.5207 - 5236. ⟨10.5194/amt-13-5207-2020⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-13-5207-2020 hal-03009279 https://hal.science/hal-03009279 https://hal.science/hal-03009279/document https://hal.science/hal-03009279/file/Puthukkudy%20et%20al%202020.pdf doi:10.5194/amt-13-5207-2020 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/amt-13-5207-2020 |
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Atmospheric Measurement Techniques |
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13 |
container_issue |
10 |
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5236 |
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1810448271065219072 |