Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar
A 12-year analysis, from 2005 to 2016, of atmospheric aerosol optical properties focusing for the first time on Northeast Brazil (NEB) was performed based on four different remote sensing datasets: the Moderate Resolution Imaging Spectroradiometer (MODIS), the Aerosol Robotic Network (AERONET), the...
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ftmdpi:oai:mdpi.com:/2073-4433/10/10/594/ 2023-08-20T03:59:11+02:00 Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar Aline M. de Oliveira Cristina T. Souza Nara P. M. de Oliveira Aline K. S. Melo Fabio J. S. Lopes Eduardo Landulfo Hendrik Elbern Judith J. Hoelzemann agris 2019-10-02 application/pdf https://doi.org/10.3390/atmos10100594 EN eng Multidisciplinary Digital Publishing Institute Aerosols https://dx.doi.org/10.3390/atmos10100594 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 10; Issue 10; Pages: 594 MODIS CALIPSO Lidar aerosols Dust Northeast Brazil trajectory model Text 2019 ftmdpi https://doi.org/10.3390/atmos10100594 2023-07-31T22:39:45Z A 12-year analysis, from 2005 to 2016, of atmospheric aerosol optical properties focusing for the first time on Northeast Brazil (NEB) was performed based on four different remote sensing datasets: the Moderate Resolution Imaging Spectroradiometer (MODIS), the Aerosol Robotic Network (AERONET), the Cloud-Aerosol LIDAR with Orthogonal Polarization (CALIOP) and a ground-based Lidar from Natal. We evaluated and identified distinct aerosol types, considering Aerosol Optical Depth (AOD) and Angström Exponent (AE). All analyses show that over the NEB, a low aerosol scenario prevails, while there are two distinct seasons of more elevated AOD that occur every year, from August to October and January to March. According to MODIS, AOD values ranges from 0.04 to 0.52 over the region with a mean of 0.20 and occasionally isolated outliers of up to 1.21. Aerosol types were identified as sea spray, biomass burning, and dust aerosols mostly transported from tropical Africa. Three case studies on days with elevated AOD were performed. All cases identified the same aerosol types and modeled HYSPLIT backward trajectories confirmed their source-dependent origins. This analysis is motivated by the implementation of an atmospheric chemistry model with an advanced data assimilation system that will use the observational database over NEB with the model to overcome high uncertainties in the model results induced by still unvalidated emission inventories. Text Aerosol Robotic Network MDPI Open Access Publishing Atmosphere 10 10 594 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
MODIS CALIPSO Lidar aerosols Dust Northeast Brazil trajectory model |
spellingShingle |
MODIS CALIPSO Lidar aerosols Dust Northeast Brazil trajectory model Aline M. de Oliveira Cristina T. Souza Nara P. M. de Oliveira Aline K. S. Melo Fabio J. S. Lopes Eduardo Landulfo Hendrik Elbern Judith J. Hoelzemann Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar |
topic_facet |
MODIS CALIPSO Lidar aerosols Dust Northeast Brazil trajectory model |
description |
A 12-year analysis, from 2005 to 2016, of atmospheric aerosol optical properties focusing for the first time on Northeast Brazil (NEB) was performed based on four different remote sensing datasets: the Moderate Resolution Imaging Spectroradiometer (MODIS), the Aerosol Robotic Network (AERONET), the Cloud-Aerosol LIDAR with Orthogonal Polarization (CALIOP) and a ground-based Lidar from Natal. We evaluated and identified distinct aerosol types, considering Aerosol Optical Depth (AOD) and Angström Exponent (AE). All analyses show that over the NEB, a low aerosol scenario prevails, while there are two distinct seasons of more elevated AOD that occur every year, from August to October and January to March. According to MODIS, AOD values ranges from 0.04 to 0.52 over the region with a mean of 0.20 and occasionally isolated outliers of up to 1.21. Aerosol types were identified as sea spray, biomass burning, and dust aerosols mostly transported from tropical Africa. Three case studies on days with elevated AOD were performed. All cases identified the same aerosol types and modeled HYSPLIT backward trajectories confirmed their source-dependent origins. This analysis is motivated by the implementation of an atmospheric chemistry model with an advanced data assimilation system that will use the observational database over NEB with the model to overcome high uncertainties in the model results induced by still unvalidated emission inventories. |
format |
Text |
author |
Aline M. de Oliveira Cristina T. Souza Nara P. M. de Oliveira Aline K. S. Melo Fabio J. S. Lopes Eduardo Landulfo Hendrik Elbern Judith J. Hoelzemann |
author_facet |
Aline M. de Oliveira Cristina T. Souza Nara P. M. de Oliveira Aline K. S. Melo Fabio J. S. Lopes Eduardo Landulfo Hendrik Elbern Judith J. Hoelzemann |
author_sort |
Aline M. de Oliveira |
title |
Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar |
title_short |
Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar |
title_full |
Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar |
title_fullStr |
Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar |
title_full_unstemmed |
Analysis of Atmospheric Aerosol Optical Properties in the Northeast Brazilian Atmosphere with Remote Sensing Data from MODIS and CALIOP/CALIPSO Satellites, AERONET Photometers and a Ground-Based Lidar |
title_sort |
analysis of atmospheric aerosol optical properties in the northeast brazilian atmosphere with remote sensing data from modis and caliop/calipso satellites, aeronet photometers and a ground-based lidar |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/atmos10100594 |
op_coverage |
agris |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Atmosphere; Volume 10; Issue 10; Pages: 594 |
op_relation |
Aerosols https://dx.doi.org/10.3390/atmos10100594 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos10100594 |
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Atmosphere |
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10 |
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10 |
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594 |
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