Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement
The Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) Aerosol Optical Thickness (AOT) dataset is a consistent and comprehensive dataset combining observations from various satellite instruments and other sources with a numerical model, supporting climate studies, at...
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ftdoajarticles:oai:doaj.org/article:570150088eec46dc8aad7719c1b30aa4 2023-11-12T03:59:49+01:00 Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement Shuaiyi Shi Hao Zhu Xing Wang 2023-10-01T00:00:00Z https://doi.org/10.3390/atmos14101592 https://doaj.org/article/570150088eec46dc8aad7719c1b30aa4 EN eng MDPI AG https://www.mdpi.com/2073-4433/14/10/1592 https://doaj.org/toc/2073-4433 doi:10.3390/atmos14101592 2073-4433 https://doaj.org/article/570150088eec46dc8aad7719c1b30aa4 Atmosphere, Vol 14, Iss 1592, p 1592 (2023) Aerosol Optical Thickness (AOT) The Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2) National Civil Space Infrastructure Satellite Aerosol Product Validation Network (SIAVNET) Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.3390/atmos14101592 2023-10-29T00:37:06Z The Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) Aerosol Optical Thickness (AOT) dataset is a consistent and comprehensive dataset combining observations from various satellite instruments and other sources with a numerical model, supporting climate studies, atmospheric modeling, air quality monitoring, and environmental research. Due to the uneven and sparse distribution of the Aerosol Robotic Network (AERONET) in China, the validation for the MERRA-2 AOT dataset over China is inadequate. The construction of the National Civil Space Infrastructure Satellite Aerosol Product Validation Network (SIAVNET) is helpful to compensate for MERRA-2 AOT dataset validation over China. The validation results show that the accuracy of the MERRA-2 AOT goes down along with the aerosol loading in the atmosphere increase. In general, when the AOT is less than 1.0, the slope can reach 0.712 with R 2 = 0.584. The percentage of data pairs that fall within the GCOS minimum requirement is less than 60%. Research also shows that MERRA-2 has a lower simulation quality of AOT at high altitudes than at low altitudes in China. Additionally, MERRA-2’s AOT simulation quality varies by season. Simulated quality is worst in spring, improving in subsequent seasons. During the winter season, simulations are of the highest quality. Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles Atmosphere 14 10 1592 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Aerosol Optical Thickness (AOT) The Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2) National Civil Space Infrastructure Satellite Aerosol Product Validation Network (SIAVNET) Meteorology. Climatology QC851-999 |
spellingShingle |
Aerosol Optical Thickness (AOT) The Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2) National Civil Space Infrastructure Satellite Aerosol Product Validation Network (SIAVNET) Meteorology. Climatology QC851-999 Shuaiyi Shi Hao Zhu Xing Wang Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement |
topic_facet |
Aerosol Optical Thickness (AOT) The Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2) National Civil Space Infrastructure Satellite Aerosol Product Validation Network (SIAVNET) Meteorology. Climatology QC851-999 |
description |
The Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) Aerosol Optical Thickness (AOT) dataset is a consistent and comprehensive dataset combining observations from various satellite instruments and other sources with a numerical model, supporting climate studies, atmospheric modeling, air quality monitoring, and environmental research. Due to the uneven and sparse distribution of the Aerosol Robotic Network (AERONET) in China, the validation for the MERRA-2 AOT dataset over China is inadequate. The construction of the National Civil Space Infrastructure Satellite Aerosol Product Validation Network (SIAVNET) is helpful to compensate for MERRA-2 AOT dataset validation over China. The validation results show that the accuracy of the MERRA-2 AOT goes down along with the aerosol loading in the atmosphere increase. In general, when the AOT is less than 1.0, the slope can reach 0.712 with R 2 = 0.584. The percentage of data pairs that fall within the GCOS minimum requirement is less than 60%. Research also shows that MERRA-2 has a lower simulation quality of AOT at high altitudes than at low altitudes in China. Additionally, MERRA-2’s AOT simulation quality varies by season. Simulated quality is worst in spring, improving in subsequent seasons. During the winter season, simulations are of the highest quality. |
format |
Article in Journal/Newspaper |
author |
Shuaiyi Shi Hao Zhu Xing Wang |
author_facet |
Shuaiyi Shi Hao Zhu Xing Wang |
author_sort |
Shuaiyi Shi |
title |
Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement |
title_short |
Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement |
title_full |
Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement |
title_fullStr |
Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement |
title_full_unstemmed |
Validation of MERRA-2 AOT Modeling Data over China Using SIAVNET Measurement |
title_sort |
validation of merra-2 aot modeling data over china using siavnet measurement |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/atmos14101592 https://doaj.org/article/570150088eec46dc8aad7719c1b30aa4 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Atmosphere, Vol 14, Iss 1592, p 1592 (2023) |
op_relation |
https://www.mdpi.com/2073-4433/14/10/1592 https://doaj.org/toc/2073-4433 doi:10.3390/atmos14101592 2073-4433 https://doaj.org/article/570150088eec46dc8aad7719c1b30aa4 |
op_doi |
https://doi.org/10.3390/atmos14101592 |
container_title |
Atmosphere |
container_volume |
14 |
container_issue |
10 |
container_start_page |
1592 |
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1782336324557078528 |