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Neural Network AEROsol Retrieval for Geostationary Satellite (NNAeroG): Algorithm Framework Development
  • +8
  • Xingfeng Chen,
  • Fengjie Zheng,
  • Lili Wang,
  • Limin Zhao,
  • Jiaguo Li,
  • Gerrit de Leeuw,
  • Lei Li,
  • Kainan Zhang,
  • Lu She,
  • Kaitao Li,
  • Zhengqiang Li
Xingfeng Chen
Aerospace Information Research Institute, Chinese Academy of Sciences
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Fengjie Zheng
Space Engineering University, Beijing, China
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Lili Wang
Institute of Atmospheric Physics, Chinese Academy of Sciences
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Limin Zhao
Aerospace Information Research Institute, Chinese Academy of Sciences
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Jiaguo Li
Aerospace Information Research Institute, Chinese Academy of Sciences
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Gerrit de Leeuw
KNMI

Corresponding Author:[email protected]

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Lei Li
State Key Laboratory of Severe Weather (LASW), Key Laboratory of Atmospheric Chemistry (LAC), Chinese Academy of Meteorological Sciences, CMA
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Kainan Zhang
School of Geology Engineering and Geomatics, Chang'an University
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Lu She
College of Resources and Environmental Science, Ningxia University
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Kaitao Li
Aerospace Information Research Institute, Chinese Academy of Sciences
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Zhengqiang Li
Aerospace Information Research Institute, Chinese Academy of Sciences
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Abstract

Geostationary satellites observe the earth surface and atmosphere with a short repeat time which can thus provide aerosol parameters with high temporal resolution. Due to the limited information content in satellite data, and the coupling between the signals received from the surface and the atmosphere, the accurate retrieval of multiple aerosol parameters over land is difficult. Here we propose a Neural Network AEROsol retrieval framework for Geostationary satellite (NNAeroG) which can potentially be applied to different instruments to retrieve various aerosol parameters. NNAeroG was applied for aerosol retrieval using data from the Advanced Himawari Imager on Himawari-8 and the results were evaluated versus independent ground-based sun photometer reference data. The retrieved Aerosol Optical Depth, Ångström Exponent and Fine Mode Fraction are significantly better than the official JAXA aerosol products. The use of thermal infrared bands is meaningful for aerosol retrieval.
17 Feb 2022Published in Remote Sensing volume 14 issue 4 on pages 980. 10.3390/rs14040980