Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning
Quantitative measurements of aerosol absorptive properties, e.g., the absorbing aerosol optical depth (AAOD) and the single scattering albedo (SSA), are important to reduce uncertainties of aerosol climate radiative forcing assessments. Currently, global retrievals of AAOD and SSA are mainly provide...
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ftdoajarticles:oai:doaj.org/article:b97e39e17bb04ffd8765636eeb6f7e4e 2023-05-15T13:06:16+02:00 Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning Jiyunting Sun Pepijn Veefkind Peter van Velthoven Pieternel F. Levelt 2021-01-01T00:00:00Z https://doi.org/10.1109/JSTARS.2021.3108669 https://doaj.org/article/b97e39e17bb04ffd8765636eeb6f7e4e EN eng IEEE https://ieeexplore.ieee.org/document/9525298/ https://doaj.org/toc/2151-1535 2151-1535 doi:10.1109/JSTARS.2021.3108669 https://doaj.org/article/b97e39e17bb04ffd8765636eeb6f7e4e IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 9692-9710 (2021) Absorbing aerosol optical depth (AAOD) deep neural network (DDN) machine learning ozone monitoring instrument (OMI) single scattering albedo (SSA) ultra-violet aerosol index (UVAI) Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809 article 2021 ftdoajarticles https://doi.org/10.1109/JSTARS.2021.3108669 2022-12-30T23:09:07Z Quantitative measurements of aerosol absorptive properties, e.g., the absorbing aerosol optical depth (AAOD) and the single scattering albedo (SSA), are important to reduce uncertainties of aerosol climate radiative forcing assessments. Currently, global retrievals of AAOD and SSA are mainly provided by the ground-based aerosol robotic network (AERONET), whereas it is still challenging to retrieve them from space. However, we found the AERONET AAOD has a relatively strong correlation with the satellite retrieved ultra-violet aerosol index (UVAI). Based on this, a numerical relation is built by a deep neural network (DNN) to predict global AAOD and SSA over land from the long-term UVAI record (2006–2019) provided by the ozone monitoring instrument (OMI) onboard Aura. The DNN predicted aerosol absorption is satisfying for samples with AOD at 550 nm larger than 0.1, and the DNN model performance is better for smaller absorbing aerosols (e.g., smoke) than larger ones (e.g., mineral dust). The comparison of the DNN predictions with AERONET shows a high correlation coefficient of 0.90 and a root mean square of 0.005 for the AAOD, and over 80% of samples are within the expected uncertainty of AERONET SSA ( $\pm$ 0.03). Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 14 9692 9710 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Absorbing aerosol optical depth (AAOD) deep neural network (DDN) machine learning ozone monitoring instrument (OMI) single scattering albedo (SSA) ultra-violet aerosol index (UVAI) Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Absorbing aerosol optical depth (AAOD) deep neural network (DDN) machine learning ozone monitoring instrument (OMI) single scattering albedo (SSA) ultra-violet aerosol index (UVAI) Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809 Jiyunting Sun Pepijn Veefkind Peter van Velthoven Pieternel F. Levelt Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning |
topic_facet |
Absorbing aerosol optical depth (AAOD) deep neural network (DDN) machine learning ozone monitoring instrument (OMI) single scattering albedo (SSA) ultra-violet aerosol index (UVAI) Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809 |
description |
Quantitative measurements of aerosol absorptive properties, e.g., the absorbing aerosol optical depth (AAOD) and the single scattering albedo (SSA), are important to reduce uncertainties of aerosol climate radiative forcing assessments. Currently, global retrievals of AAOD and SSA are mainly provided by the ground-based aerosol robotic network (AERONET), whereas it is still challenging to retrieve them from space. However, we found the AERONET AAOD has a relatively strong correlation with the satellite retrieved ultra-violet aerosol index (UVAI). Based on this, a numerical relation is built by a deep neural network (DNN) to predict global AAOD and SSA over land from the long-term UVAI record (2006–2019) provided by the ozone monitoring instrument (OMI) onboard Aura. The DNN predicted aerosol absorption is satisfying for samples with AOD at 550 nm larger than 0.1, and the DNN model performance is better for smaller absorbing aerosols (e.g., smoke) than larger ones (e.g., mineral dust). The comparison of the DNN predictions with AERONET shows a high correlation coefficient of 0.90 and a root mean square of 0.005 for the AAOD, and over 80% of samples are within the expected uncertainty of AERONET SSA ( $\pm$ 0.03). |
format |
Article in Journal/Newspaper |
author |
Jiyunting Sun Pepijn Veefkind Peter van Velthoven Pieternel F. Levelt |
author_facet |
Jiyunting Sun Pepijn Veefkind Peter van Velthoven Pieternel F. Levelt |
author_sort |
Jiyunting Sun |
title |
Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning |
title_short |
Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning |
title_full |
Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning |
title_fullStr |
Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning |
title_full_unstemmed |
Aerosol Absorption Over Land Derived From the Ultra-Violet Aerosol Index by Deep Learning |
title_sort |
aerosol absorption over land derived from the ultra-violet aerosol index by deep learning |
publisher |
IEEE |
publishDate |
2021 |
url |
https://doi.org/10.1109/JSTARS.2021.3108669 https://doaj.org/article/b97e39e17bb04ffd8765636eeb6f7e4e |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 9692-9710 (2021) |
op_relation |
https://ieeexplore.ieee.org/document/9525298/ https://doaj.org/toc/2151-1535 2151-1535 doi:10.1109/JSTARS.2021.3108669 https://doaj.org/article/b97e39e17bb04ffd8765636eeb6f7e4e |
op_doi |
https://doi.org/10.1109/JSTARS.2021.3108669 |
container_title |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
container_volume |
14 |
container_start_page |
9692 |
op_container_end_page |
9710 |
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1765998925601308672 |