Comprehensive Assessment and Analysis of the Current Global Aerosol Optical Depth Products DOI Creative Commons
Liping Zhang, Xufeng Wang, Guanghui Huang

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(8), P. 1425 - 1425

Published: April 17, 2024

Aerosol Optical Depth (AOD) is one of the most important optical properties aerosols that may affect energy budgets our Earth–atmosphere system significantly. Currently, while regional and even global AOD knowledge has been given by various satellites or models, these products are still fraught with uncertainties. In this study, sophisticated satellite-derived product from MODIS (MODerate resolution Imaging Spectral-radiometer) two state-of-the-art model-based CAMS (Copernicus Atmosphere Monitoring Service) MERRA-2 (Modern-Era Retrospective analysis for Research Application Version 2), based on AERONET measurements 2000–2022, analyzed spatial distribution characteristics AOD. Then using Mann-Kendall (MK) trend test, changing trends revealed three were also computed analyzed. The accuracies reliabilities derived discussed concluded finally. Our study demonstrates have wider applicability, matching best globally, only reliable in North America, South Europe. Through comparative trends, we found MODIS, CAMS, consistently exhibited decreasing eastern Asia, Europe, America. On other hand, different showed increasing regions like West Africa, suggesting their limited reliability. reliability assessment shows 41.45% areas consistent among products, approximately 3.2% showing significant results. When site validation, proportions sites highest at 64.56% 46.84% respectively. changes mainly distributed Australia, Central This provides new insights validating aerosol remote sensing potential to enhance future monitoring evaluation methods products.

Language: Английский

Comprehensive Assessment and Analysis of the Current Global Aerosol Optical Depth Products DOI Creative Commons
Liping Zhang, Xufeng Wang, Guanghui Huang

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(8), P. 1425 - 1425

Published: April 17, 2024

Aerosol Optical Depth (AOD) is one of the most important optical properties aerosols that may affect energy budgets our Earth–atmosphere system significantly. Currently, while regional and even global AOD knowledge has been given by various satellites or models, these products are still fraught with uncertainties. In this study, sophisticated satellite-derived product from MODIS (MODerate resolution Imaging Spectral-radiometer) two state-of-the-art model-based CAMS (Copernicus Atmosphere Monitoring Service) MERRA-2 (Modern-Era Retrospective analysis for Research Application Version 2), based on AERONET measurements 2000–2022, analyzed spatial distribution characteristics AOD. Then using Mann-Kendall (MK) trend test, changing trends revealed three were also computed analyzed. The accuracies reliabilities derived discussed concluded finally. Our study demonstrates have wider applicability, matching best globally, only reliable in North America, South Europe. Through comparative trends, we found MODIS, CAMS, consistently exhibited decreasing eastern Asia, Europe, America. On other hand, different showed increasing regions like West Africa, suggesting their limited reliability. reliability assessment shows 41.45% areas consistent among products, approximately 3.2% showing significant results. When site validation, proportions sites highest at 64.56% 46.84% respectively. changes mainly distributed Australia, Central This provides new insights validating aerosol remote sensing potential to enhance future monitoring evaluation methods products.

Language: Английский

Citations

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