Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements
The AERONET (Aerosol Robotic Network) global network provides estimations of broadband solar radiative fluxes at the surface and at the TOA (Top-Of-the-Atmosphere). This paper reports on the validation of AERONET flux estimations at the TOA with the CERES (Clouds and the Earth’s Radiant Energy Syste...
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ftdoajarticles:oai:doaj.org/article:7d70df39999c46e886921d3197deabb4 2023-05-15T13:06:20+02:00 Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements Michaël Sicard 2019-09-01T00:00:00Z https://doi.org/10.3390/rs11182168 https://doaj.org/article/7d70df39999c46e886921d3197deabb4 EN eng MDPI AG https://www.mdpi.com/2072-4292/11/18/2168 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11182168 https://doaj.org/article/7d70df39999c46e886921d3197deabb4 Remote Sensing, Vol 11, Iss 18, p 2168 (2019) Top-Of-the-Atmosphere (TOA) upward solar fluxes AERONET CERES flux comparison Science Q article 2019 ftdoajarticles https://doi.org/10.3390/rs11182168 2022-12-31T15:24:09Z The AERONET (Aerosol Robotic Network) global network provides estimations of broadband solar radiative fluxes at the surface and at the TOA (Top-Of-the-Atmosphere). This paper reports on the validation of AERONET flux estimations at the TOA with the CERES (Clouds and the Earth’s Radiant Energy System) instrument. The validation was made at eight AERONET sites worldwide with at least seven years of Level 2.0 and Version 3 data and representatives of mineral dust, biomass burning, background continental, and urban-industrial aerosol regimes. To co-locate in time and space the AERONET and CERES fluxes, several criteria based on time and distance differences and cloud coverage were defined. When the strictest criterion was applied to all sites, the linear relationship between the observed and estimated fluxes (y = 1.04x – 3.67 Wm −2 ) was very close to the 1:1 ideal line. The correlation coefficient was 0.96 and nearly all points were contained in the ±15% region around the 1:1 line. The average flux difference was –2.52 Wm −2 (–0.84% in relative terms). AERONET overestimations were observed at two sites and were correlated with large aerosol optical depth (AOD) (>0.2) Underestimations were observed at one desert site and were correlated with large surface albedos (>0.2). Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles Remote Sensing 11 18 2168 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Top-Of-the-Atmosphere (TOA) upward solar fluxes AERONET CERES flux comparison Science Q |
spellingShingle |
Top-Of-the-Atmosphere (TOA) upward solar fluxes AERONET CERES flux comparison Science Q Michaël Sicard Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements |
topic_facet |
Top-Of-the-Atmosphere (TOA) upward solar fluxes AERONET CERES flux comparison Science Q |
description |
The AERONET (Aerosol Robotic Network) global network provides estimations of broadband solar radiative fluxes at the surface and at the TOA (Top-Of-the-Atmosphere). This paper reports on the validation of AERONET flux estimations at the TOA with the CERES (Clouds and the Earth’s Radiant Energy System) instrument. The validation was made at eight AERONET sites worldwide with at least seven years of Level 2.0 and Version 3 data and representatives of mineral dust, biomass burning, background continental, and urban-industrial aerosol regimes. To co-locate in time and space the AERONET and CERES fluxes, several criteria based on time and distance differences and cloud coverage were defined. When the strictest criterion was applied to all sites, the linear relationship between the observed and estimated fluxes (y = 1.04x – 3.67 Wm −2 ) was very close to the 1:1 ideal line. The correlation coefficient was 0.96 and nearly all points were contained in the ±15% region around the 1:1 line. The average flux difference was –2.52 Wm −2 (–0.84% in relative terms). AERONET overestimations were observed at two sites and were correlated with large aerosol optical depth (AOD) (>0.2) Underestimations were observed at one desert site and were correlated with large surface albedos (>0.2). |
format |
Article in Journal/Newspaper |
author |
Michaël Sicard |
author_facet |
Michaël Sicard |
author_sort |
Michaël Sicard |
title |
Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements |
title_short |
Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements |
title_full |
Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements |
title_fullStr |
Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements |
title_full_unstemmed |
Validation of AERONET-Estimated Upward Broadband Solar Fluxes at the Top-Of-The-Atmosphere with CERES Measurements |
title_sort |
validation of aeronet-estimated upward broadband solar fluxes at the top-of-the-atmosphere with ceres measurements |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11182168 https://doaj.org/article/7d70df39999c46e886921d3197deabb4 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Remote Sensing, Vol 11, Iss 18, p 2168 (2019) |
op_relation |
https://www.mdpi.com/2072-4292/11/18/2168 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11182168 https://doaj.org/article/7d70df39999c46e886921d3197deabb4 |
op_doi |
https://doi.org/10.3390/rs11182168 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
18 |
container_start_page |
2168 |
_version_ |
1766001152265027584 |