Extensive characterization of aerosol ...
Document type :
Article dans une revue scientifique: Article original
PMID :
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Title :
Extensive characterization of aerosol optical properties and chemical component concentrations: Application of the GRASP/Component approach to long-term AERONET measurements.
Author(s) :
Zhang, Xindan [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Li, Lei [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Chen, Cheng [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Université de Lille
Zheng, Yu [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Doubovik, Oleg [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Derimian, Yevgeny [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Lopatin, Anton [Auteur]
Université de Lille
Gui, Ke [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Wang, Yaqiang [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Zhao, Hujia [Auteur]
Institute of Atmospheric Environment, Shenyang, China
Liang, Yuanxin [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Holben, Brent [Auteur]
NASA Goddard Space Flight Center [GSFC]
Che, Huizheng [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Zhang, Xiaoye [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Chinese Academy of Meteorological Sciences [CAMS]
Li, Lei [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Chen, Cheng [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Université de Lille
Zheng, Yu [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Doubovik, Oleg [Auteur]

Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Derimian, Yevgeny [Auteur]

Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Lopatin, Anton [Auteur]
Université de Lille
Gui, Ke [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Wang, Yaqiang [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Zhao, Hujia [Auteur]
Institute of Atmospheric Environment, Shenyang, China
Liang, Yuanxin [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Holben, Brent [Auteur]
NASA Goddard Space Flight Center [GSFC]
Che, Huizheng [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Zhang, Xiaoye [Auteur]
Chinese Academy of Meteorological Sciences [CAMS]
Journal title :
Sci Total Environ
Abbreviated title :
Sci Total Environ
Pages :
152553
Publication date :
2021-12-30
ISSN :
1879-1026
English keyword(s) :
Aerosol component retrieval
Aerosol optical property
GRASP/component approach
AERONFT sun photometer measurements
Component mixing rule
Aerosol optical property
GRASP/component approach
AERONFT sun photometer measurements
Component mixing rule
HAL domain(s) :
Planète et Univers [physics]/Océan, Atmosphère
English abstract : [en]
A recently developed GRASP/Component approach (GRASP: Generalized Retrieval of Atmosphere and Surface Properties) was applied to AERONET (Aeronet Robotic Network) sun photometer measurements in this study. Unlike traditional ...
Show more >A recently developed GRASP/Component approach (GRASP: Generalized Retrieval of Atmosphere and Surface Properties) was applied to AERONET (Aeronet Robotic Network) sun photometer measurements in this study. Unlike traditional aerosol component retrieval, this approach allows the inference of some information about aerosol composition directly from measured radiance, rather than indirectly through the inversion of optical parameters, and has been integrated into the GRASP algorithm. The newly developed GRASP/Component approach was applied to 13 AERONET sites for different aerosol types under the assumption of aerosol internal mixing rules to analyze the characteristics of aerosol components and their distribution patterns. The results indicate that the retrievals can characterize well the spatial and temporal variability of the component concentration for different aerosol types. A reasonable agreement between GRASP BC retrievals and MERRA-2 BC products is found for all different aerosol types. In addition, the relationships between aerosol component content and aerosol optical parameters such as aerosol optical depth (AOD), fine-mode fraction (FMF), absorption Ångström exponent (AAE), scattering Ångström exponent (SAE), and single scattering albedo (SSA) are also analyzed for indirect verifying the reliability of the component retrieval. It was demonstrated the GRASP/Component optical retrievals are in good agreement with AERONET standard products [e.g., correlation coefficient (R) of 0.93–1.0 for AOD, fine-mode AOD (AODF), coarse-mode AOD (AODC) and Ångström exponent (AE); R = ~ 0.8 for absorption AOD (AAOD) and SSA; RMSE (root mean square error) < 0.03 for AOD, AODF, AODC, AAOD and SSA]. Thus, it is demonstrated the GRASP/Component approach can provide aerosol optical products with comparable accuracy as the AERONET standard products from the ground-based sun photometer measurements as well as some additional important inside on aerosol composition.Show less >
Show more >A recently developed GRASP/Component approach (GRASP: Generalized Retrieval of Atmosphere and Surface Properties) was applied to AERONET (Aeronet Robotic Network) sun photometer measurements in this study. Unlike traditional aerosol component retrieval, this approach allows the inference of some information about aerosol composition directly from measured radiance, rather than indirectly through the inversion of optical parameters, and has been integrated into the GRASP algorithm. The newly developed GRASP/Component approach was applied to 13 AERONET sites for different aerosol types under the assumption of aerosol internal mixing rules to analyze the characteristics of aerosol components and their distribution patterns. The results indicate that the retrievals can characterize well the spatial and temporal variability of the component concentration for different aerosol types. A reasonable agreement between GRASP BC retrievals and MERRA-2 BC products is found for all different aerosol types. In addition, the relationships between aerosol component content and aerosol optical parameters such as aerosol optical depth (AOD), fine-mode fraction (FMF), absorption Ångström exponent (AAE), scattering Ångström exponent (SAE), and single scattering albedo (SSA) are also analyzed for indirect verifying the reliability of the component retrieval. It was demonstrated the GRASP/Component optical retrievals are in good agreement with AERONET standard products [e.g., correlation coefficient (R) of 0.93–1.0 for AOD, fine-mode AOD (AODF), coarse-mode AOD (AODC) and Ångström exponent (AE); R = ~ 0.8 for absorption AOD (AAOD) and SSA; RMSE (root mean square error) < 0.03 for AOD, AODF, AODC, AAOD and SSA]. Thus, it is demonstrated the GRASP/Component approach can provide aerosol optical products with comparable accuracy as the AERONET standard products from the ground-based sun photometer measurements as well as some additional important inside on aerosol composition.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Submission date :
2024-01-16T22:03:02Z
2024-02-19T08:22:26Z
2024-02-19T08:22:26Z