Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product
The Earth Explorer mission Earth Clouds, Aerosols and Radiation Explorer (EarthCARE) will not only provide profile information on aerosols but also deliver a horizontal context to it through measurements by its Multi-Spectral Imager (MSI). The columnar aerosol product relying on these passive signal...
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ftcopernicus:oai:publications.copernicus.org:amt109326 2023-07-30T03:55:32+02:00 Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product Docter, Nicole Preusker, Rene Filipitsch, Florian Kritten, Lena Schmidt, Franziska Fischer, Jürgen 2023-07-11 application/pdf https://doi.org/10.5194/amt-16-3437-2023 https://amt.copernicus.org/articles/16/3437/2023/ eng eng doi:10.5194/amt-16-3437-2023 https://amt.copernicus.org/articles/16/3437/2023/ eISSN: 1867-8548 Text 2023 ftcopernicus https://doi.org/10.5194/amt-16-3437-2023 2023-07-17T16:24:18Z The Earth Explorer mission Earth Clouds, Aerosols and Radiation Explorer (EarthCARE) will not only provide profile information on aerosols but also deliver a horizontal context to it through measurements by its Multi-Spectral Imager (MSI). The columnar aerosol product relying on these passive signals is called M-AOT (MSI-Aerosol Optical Thickness). Its main parameters are aerosol optical thickness (AOT) at 670 nm over ocean and valid land pixels and at 865 nm over ocean. Here, the algorithm and assumptions behind it are presented. Further, first examples of product parameters are given based on applying the algorithm to simulated EarthCARE test data and Moderate Resolution Imaging Spectroradiometer (MODIS) Level-1 data. Comparisons to input fields used for simulations, to the official MODIS aerosol product, to AErosol RObotic NETwork (AERONET) and to Maritime Aerosol Network (MAN) show an overall reasonable agreement. Over ocean, correlations are 0.98 (simulated scenes), 0.96 (compared to MYD04) and 0.9 (compared to MAN). Over land, correlations are 0.62 (simulated scenes), 0.87 (compared to MYD04) and 0.77 (compared to AERONET). A concluding discussion will focus on future improvements that are necessary and envisioned to enhance the product. Text Aerosol Robotic Network Copernicus Publications: E-Journals Atmospheric Measurement Techniques 16 13 3437 3457 |
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English |
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The Earth Explorer mission Earth Clouds, Aerosols and Radiation Explorer (EarthCARE) will not only provide profile information on aerosols but also deliver a horizontal context to it through measurements by its Multi-Spectral Imager (MSI). The columnar aerosol product relying on these passive signals is called M-AOT (MSI-Aerosol Optical Thickness). Its main parameters are aerosol optical thickness (AOT) at 670 nm over ocean and valid land pixels and at 865 nm over ocean. Here, the algorithm and assumptions behind it are presented. Further, first examples of product parameters are given based on applying the algorithm to simulated EarthCARE test data and Moderate Resolution Imaging Spectroradiometer (MODIS) Level-1 data. Comparisons to input fields used for simulations, to the official MODIS aerosol product, to AErosol RObotic NETwork (AERONET) and to Maritime Aerosol Network (MAN) show an overall reasonable agreement. Over ocean, correlations are 0.98 (simulated scenes), 0.96 (compared to MYD04) and 0.9 (compared to MAN). Over land, correlations are 0.62 (simulated scenes), 0.87 (compared to MYD04) and 0.77 (compared to AERONET). A concluding discussion will focus on future improvements that are necessary and envisioned to enhance the product. |
format |
Text |
author |
Docter, Nicole Preusker, Rene Filipitsch, Florian Kritten, Lena Schmidt, Franziska Fischer, Jürgen |
spellingShingle |
Docter, Nicole Preusker, Rene Filipitsch, Florian Kritten, Lena Schmidt, Franziska Fischer, Jürgen Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product |
author_facet |
Docter, Nicole Preusker, Rene Filipitsch, Florian Kritten, Lena Schmidt, Franziska Fischer, Jürgen |
author_sort |
Docter, Nicole |
title |
Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product |
title_short |
Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product |
title_full |
Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product |
title_fullStr |
Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product |
title_full_unstemmed |
Aerosol optical depth retrieval from the EarthCARE Multi-Spectral Imager: the M-AOT product |
title_sort |
aerosol optical depth retrieval from the earthcare multi-spectral imager: the m-aot product |
publishDate |
2023 |
url |
https://doi.org/10.5194/amt-16-3437-2023 https://amt.copernicus.org/articles/16/3437/2023/ |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
eISSN: 1867-8548 |
op_relation |
doi:10.5194/amt-16-3437-2023 https://amt.copernicus.org/articles/16/3437/2023/ |
op_doi |
https://doi.org/10.5194/amt-16-3437-2023 |
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Atmospheric Measurement Techniques |
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16 |
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13 |
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3437 |
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3457 |
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