Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land
The correction of the atmospheric effects on optical satellite images is essential for quantitative and multitemporal remote sensing applications. In order to study the performance of the state-of-the-art methods in an integrated way, a voluntary and open-access benchmark Atmospheric Correction Inte...
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ftdlr:oai:elib.dlr.de:196023 2023-11-12T03:59:50+01:00 Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land Doxani, Geogia Vermote, Eric Roger, Jean-Claude Skakun, Sergii Gascon, Ferran Collison, Alan De Keukelaere, Liesbeth Desjardins, Camille Frantz, David Hagolle, Olivier Kim, Minsu Louis, Jerome Pacifici, Fabio Pflug, Bringfried Poilvé, Hervé Ramon, Didier Richter, Rudolf Yin, Feng 2022-12-21 application/pdf https://elib.dlr.de/196023/ https://elib.dlr.de/196023/1/Doxani2023_1-s2.0-S0034425722005181-main.pdf en eng Elsevier https://elib.dlr.de/196023/1/Doxani2023_1-s2.0-S0034425722005181-main.pdf Doxani, Geogia und Vermote, Eric und Roger, Jean-Claude und Skakun, Sergii und Gascon, Ferran und Collison, Alan und De Keukelaere, Liesbeth und Desjardins, Camille und Frantz, David und Hagolle, Olivier und Kim, Minsu und Louis, Jerome und Pacifici, Fabio und Pflug, Bringfried und Poilvé, Hervé und Ramon, Didier und Richter, Rudolf und Yin, Feng (2022) Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land. Remote Sensing of Environment (285), Seiten 1-18. Elsevier. doi:10.1016/j.rse.2022.113412 <https://doi.org/10.1016/j.rse.2022.113412>. ISSN 0034-4257. cc_by Photogrammetrie und Bildanalyse Zeitschriftenbeitrag PeerReviewed 2022 ftdlr https://doi.org/10.1016/j.rse.2022.113412 2023-10-30T00:24:25Z The correction of the atmospheric effects on optical satellite images is essential for quantitative and multitemporal remote sensing applications. In order to study the performance of the state-of-the-art methods in an integrated way, a voluntary and open-access benchmark Atmospheric Correction Inter-comparison eXercise (ACIX) was initiated in 2016 in the frame of Committee on Earth Observation Satellites (CEOS) Working Group on Calibration & Validation (WGCV). The first exercise was extended in a second edition wherein twelve atmospheric correction (AC) processors, a substantially larger testing dataset and additional validation metrics were involved. The sites for the inter-comparison analysis were defined by investigating the full catalogue of the Aerosol Robotic Network (AERONET) sites for coincident measurements with satellites' overpass. Although there were more than one hundred sites for Copernicus Sentinel-2 and Landsat 8 acquisitions, the analysis presented in this paper concerns only the common matchups amongst all processors, reducing the number to 79 and 62 sites respectively. Aerosol Optical Depth (AOD) and Water Vapour (WV) retrievals were consequently validated based on the available AERONET observations. The processors mostly succeeded in retrieving AOD for relatively light to medium aerosol loading (AOD < 0.2) with uncertainties <0.08, while the overall uncertainty values were typically 0.23 ± 0.15. Better performances were observed for WV retrievals with >90% of the results falling within the suggested empirical specifications and with the Root Mean Square Error (RMSE) being mostly <0.25 g/cm2. Regarding Surface Reflectance (SR) validation two main approaches were followed. For the first one, a simulated SR reference dataset was computed over all of the test sites by using the 6SV (Second Simulation of the Satellite Signal in the Solar Spectrum vector code) full radiative transfer modelling (RTM) and AERONET measurements for the required aerosol variables and water vapour ... Article in Journal/Newspaper Aerosol Robotic Network German Aerospace Center: elib - DLR electronic library Remote Sensing of Environment 285 113412 |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
Photogrammetrie und Bildanalyse |
spellingShingle |
Photogrammetrie und Bildanalyse Doxani, Geogia Vermote, Eric Roger, Jean-Claude Skakun, Sergii Gascon, Ferran Collison, Alan De Keukelaere, Liesbeth Desjardins, Camille Frantz, David Hagolle, Olivier Kim, Minsu Louis, Jerome Pacifici, Fabio Pflug, Bringfried Poilvé, Hervé Ramon, Didier Richter, Rudolf Yin, Feng Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land |
topic_facet |
Photogrammetrie und Bildanalyse |
description |
The correction of the atmospheric effects on optical satellite images is essential for quantitative and multitemporal remote sensing applications. In order to study the performance of the state-of-the-art methods in an integrated way, a voluntary and open-access benchmark Atmospheric Correction Inter-comparison eXercise (ACIX) was initiated in 2016 in the frame of Committee on Earth Observation Satellites (CEOS) Working Group on Calibration & Validation (WGCV). The first exercise was extended in a second edition wherein twelve atmospheric correction (AC) processors, a substantially larger testing dataset and additional validation metrics were involved. The sites for the inter-comparison analysis were defined by investigating the full catalogue of the Aerosol Robotic Network (AERONET) sites for coincident measurements with satellites' overpass. Although there were more than one hundred sites for Copernicus Sentinel-2 and Landsat 8 acquisitions, the analysis presented in this paper concerns only the common matchups amongst all processors, reducing the number to 79 and 62 sites respectively. Aerosol Optical Depth (AOD) and Water Vapour (WV) retrievals were consequently validated based on the available AERONET observations. The processors mostly succeeded in retrieving AOD for relatively light to medium aerosol loading (AOD < 0.2) with uncertainties <0.08, while the overall uncertainty values were typically 0.23 ± 0.15. Better performances were observed for WV retrievals with >90% of the results falling within the suggested empirical specifications and with the Root Mean Square Error (RMSE) being mostly <0.25 g/cm2. Regarding Surface Reflectance (SR) validation two main approaches were followed. For the first one, a simulated SR reference dataset was computed over all of the test sites by using the 6SV (Second Simulation of the Satellite Signal in the Solar Spectrum vector code) full radiative transfer modelling (RTM) and AERONET measurements for the required aerosol variables and water vapour ... |
format |
Article in Journal/Newspaper |
author |
Doxani, Geogia Vermote, Eric Roger, Jean-Claude Skakun, Sergii Gascon, Ferran Collison, Alan De Keukelaere, Liesbeth Desjardins, Camille Frantz, David Hagolle, Olivier Kim, Minsu Louis, Jerome Pacifici, Fabio Pflug, Bringfried Poilvé, Hervé Ramon, Didier Richter, Rudolf Yin, Feng |
author_facet |
Doxani, Geogia Vermote, Eric Roger, Jean-Claude Skakun, Sergii Gascon, Ferran Collison, Alan De Keukelaere, Liesbeth Desjardins, Camille Frantz, David Hagolle, Olivier Kim, Minsu Louis, Jerome Pacifici, Fabio Pflug, Bringfried Poilvé, Hervé Ramon, Didier Richter, Rudolf Yin, Feng |
author_sort |
Doxani, Geogia |
title |
Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land |
title_short |
Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land |
title_full |
Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land |
title_fullStr |
Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land |
title_full_unstemmed |
Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land |
title_sort |
atmospheric correction inter-comparison exercise, acix-ii land: an assessment of atmospheric correction processors for landsat 8 and sentinel-2 over land |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://elib.dlr.de/196023/ https://elib.dlr.de/196023/1/Doxani2023_1-s2.0-S0034425722005181-main.pdf |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
https://elib.dlr.de/196023/1/Doxani2023_1-s2.0-S0034425722005181-main.pdf Doxani, Geogia und Vermote, Eric und Roger, Jean-Claude und Skakun, Sergii und Gascon, Ferran und Collison, Alan und De Keukelaere, Liesbeth und Desjardins, Camille und Frantz, David und Hagolle, Olivier und Kim, Minsu und Louis, Jerome und Pacifici, Fabio und Pflug, Bringfried und Poilvé, Hervé und Ramon, Didier und Richter, Rudolf und Yin, Feng (2022) Atmospheric Correction Inter-comparison eXercise, ACIX-II Land: An assessment of atmospheric correction processors for Landsat 8 and Sentinel-2 over land. Remote Sensing of Environment (285), Seiten 1-18. Elsevier. doi:10.1016/j.rse.2022.113412 <https://doi.org/10.1016/j.rse.2022.113412>. ISSN 0034-4257. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.1016/j.rse.2022.113412 |
container_title |
Remote Sensing of Environment |
container_volume |
285 |
container_start_page |
113412 |
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1782337793386610688 |