The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions
Global quantitative aerosol information has been derived from MODerate Resolution Imaging SpectroRadiometer (MODIS) observations for decades since early 2000 and widely used for air quality and climate change research. However, the operational MODIS Aerosol Optical Depth (AOD) products Collection 6...
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fttudelft:oai:tudelft.nl:uuid:963fc10a-2db1-41c2-a572-1d053a063433 2024-04-28T07:53:24+00:00 The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions Wu, Y. (author) de Graaf, M. (author) Menenti, M. (author) 2017-08-27 http://resolver.tudelft.nl/uuid:963fc10a-2db1-41c2-a572-1d053a063433 https://doi.org/10.1002/2016JD026355 en eng http://www.scopus.com/inward/record.url?scp=85029288520&partnerID=8YFLogxK http://resolver.tudelft.nl/uuid:963fc10a-2db1-41c2-a572-1d053a063433 Journal Of Geophysical Research-Atmospheres--2169-897X--e709674d-3dc1-4e24-a2e1-8b6c420670b1 https://doi.org/10.1002/2016JD026355 © 2017 Y. Wu, M. de Graaf, M. Menenti aerosol optical depth aerosol vertical distribution CALIPSO data MODIS data retrieval simulation journal article 2017 fttudelft https://doi.org/10.1002/2016JD026355 2024-04-09T23:48:09Z Global quantitative aerosol information has been derived from MODerate Resolution Imaging SpectroRadiometer (MODIS) observations for decades since early 2000 and widely used for air quality and climate change research. However, the operational MODIS Aerosol Optical Depth (AOD) products Collection 6 (C6) can still be biased, because of uncertainty in assumed aerosol optical properties and aerosol vertical distribution. This study investigates the impact of aerosol vertical distribution on the AOD retrieval. We developed a new algorithm by considering dynamic vertical profiles, which is an adaptation of MODIS C6 Dark Target (C6_DT) algorithm over land. The new algorithm makes use of the aerosol vertical profile extracted from Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) measurements to generate an accurate top of the atmosphere (TOA) reflectance for the AOD retrieval, where the profile is assumed to be a single layer and represented as a Gaussian function with the mean height as single variable. To test the impact, a comparison was made between MODIS DT and Aerosol Robotic Network (AERONET) AOD, over dust and smoke regions. The results show that the aerosol vertical distribution has a strong impact on the AOD retrieval. The assumed aerosol layers close to the ground can negatively bias the retrievals in C6_DT. Regarding the evaluated smoke and dust layers, the new algorithm can improve the retrieval by reducing the negative biases by 3–5%. Optical and Laser Remote Sensing Atmospheric Remote Sensing Article in Journal/Newspaper Aerosol Robotic Network Delft University of Technology: Institutional Repository Journal of Geophysical Research: Atmospheres 122 16 8801 8815 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
aerosol optical depth aerosol vertical distribution CALIPSO data MODIS data retrieval simulation |
spellingShingle |
aerosol optical depth aerosol vertical distribution CALIPSO data MODIS data retrieval simulation Wu, Y. (author) de Graaf, M. (author) Menenti, M. (author) The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions |
topic_facet |
aerosol optical depth aerosol vertical distribution CALIPSO data MODIS data retrieval simulation |
description |
Global quantitative aerosol information has been derived from MODerate Resolution Imaging SpectroRadiometer (MODIS) observations for decades since early 2000 and widely used for air quality and climate change research. However, the operational MODIS Aerosol Optical Depth (AOD) products Collection 6 (C6) can still be biased, because of uncertainty in assumed aerosol optical properties and aerosol vertical distribution. This study investigates the impact of aerosol vertical distribution on the AOD retrieval. We developed a new algorithm by considering dynamic vertical profiles, which is an adaptation of MODIS C6 Dark Target (C6_DT) algorithm over land. The new algorithm makes use of the aerosol vertical profile extracted from Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) measurements to generate an accurate top of the atmosphere (TOA) reflectance for the AOD retrieval, where the profile is assumed to be a single layer and represented as a Gaussian function with the mean height as single variable. To test the impact, a comparison was made between MODIS DT and Aerosol Robotic Network (AERONET) AOD, over dust and smoke regions. The results show that the aerosol vertical distribution has a strong impact on the AOD retrieval. The assumed aerosol layers close to the ground can negatively bias the retrievals in C6_DT. Regarding the evaluated smoke and dust layers, the new algorithm can improve the retrieval by reducing the negative biases by 3–5%. Optical and Laser Remote Sensing Atmospheric Remote Sensing |
format |
Article in Journal/Newspaper |
author |
Wu, Y. (author) de Graaf, M. (author) Menenti, M. (author) |
author_facet |
Wu, Y. (author) de Graaf, M. (author) Menenti, M. (author) |
author_sort |
Wu, Y. (author) |
title |
The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions |
title_short |
The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions |
title_full |
The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions |
title_fullStr |
The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions |
title_full_unstemmed |
The impact of aerosol vertical distribution on aerosol optical depth retrieval using CALIPSO and MODIS data: Case study over dust and smoke regions |
title_sort |
impact of aerosol vertical distribution on aerosol optical depth retrieval using calipso and modis data: case study over dust and smoke regions |
publishDate |
2017 |
url |
http://resolver.tudelft.nl/uuid:963fc10a-2db1-41c2-a572-1d053a063433 https://doi.org/10.1002/2016JD026355 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
http://www.scopus.com/inward/record.url?scp=85029288520&partnerID=8YFLogxK http://resolver.tudelft.nl/uuid:963fc10a-2db1-41c2-a572-1d053a063433 Journal Of Geophysical Research-Atmospheres--2169-897X--e709674d-3dc1-4e24-a2e1-8b6c420670b1 https://doi.org/10.1002/2016JD026355 |
op_rights |
© 2017 Y. Wu, M. de Graaf, M. Menenti |
op_doi |
https://doi.org/10.1002/2016JD026355 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
122 |
container_issue |
16 |
container_start_page |
8801 |
op_container_end_page |
8815 |
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1797569393525260288 |