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›› 2019, Vol. 36 ›› Issue (5): 671-681.DOI: 10.7523/j.issn.2095-6134.2019.05.013

• Research Articles • Previous Articles     Next Articles

The method of aerosol retrieval using Himawari-8 satellite data and its application in monitoring haze process

NIU Xiaojun1, TANG Jiakui1, ZHANG Zili2, CUI Linli3, XING Weipeng1, SONG Yi1   

  1. 1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Zhejiang Province Environmental Monitoring Center, Hangzhou 310015, China;
    3. Shanghai Institute of Meteorological Science, Shanghai 200030, China
  • Received:2018-03-22 Revised:2018-05-22 Online:2019-09-15

Abstract: Haze disaster is characterized by spatio-temporally dynamic changes.Himawari-8 is a new generation of geostationary meteorological satellite launched by Japan Meteorological Agency, and it is very suitable for haze process dynamic monitoring due to its observational ability in wide range, high frequency, and high spatial resolution. A new algorithm was proposed to retrieve aerosol optical thickness using the ratio of Himawari-8 visible band surface reflectivity, and the retrieval evaluation experiments were carried out on May 17, 2017 and May 18, 2017, the two haze days, in Beijing area. The retrieval results showed that the proposed method is the best in retrieval accuracy, retrieval effective spatial and temporal ranges, and spatial resolution by comparing the results with the observation data of the three international AERONET sites of Beijing, Beijing-CAMS, and Beijing-PKU, the Himawari-8 official aerosol products, and the MODIS official aerosol products. Finally, based on the analysis of hourly-level AOD retrieval results on the two haze dates, temporal changes of the haze process in Beijing area were discussed. Based on the retrieval images of the time series, we clearly observe the moving direction of the pollution center and the increasingly or decreasingly dynamic changes of the haze, which shows that the proposed Himawari-8 algorithm has potential application for the dynamic monitoring of haze process.

Key words: Himawari-8 satellite, aerosol, haze, AOD

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