气候变化领域集成服务门户(CCPortal): Retrieval of Aerosol Optical Depth from the Himawari-8 Advanced Himawari Imager data: Application over Beijing in the summer of 2016

CCPortal

DOI	10.1016/j.atmosenv.2020.117788
	Retrieval of Aerosol Optical Depth from the Himawari-8 Advanced Himawari Imager data: Application over Beijing in the summer of 2016
	Wang L.; Yu C.; Cai K.; Zheng F.; Li S.
发表日期	2020
ISSN	13522310
卷号	241
英文摘要	Himawari-8, a new generation geostationary satellite, with the Advanced Himawari Imager (AHI) providing Full Disk observation with high temporal resolution (10 min) exhibits prominent advantage in monitoring aerosols over East Asia region. The AHI has 16 channels from 0.46 to 13.3 to capture visible and infrared spectral data. In this paper, we developed a regional algorithm to retrieve the Aerosol Optical Depth (AOD) over Beijing area based on the AHI visible and short-wave infrared (SWIR) data from June to August 2016. The AHI surface reflectance at 0.46, 0.64, 0.86 and 2.3 μm channel was obtained using the lowest gas-corrected reflectance based on the three-month top of the atmosphere (TOA) data. The algorithm employed superposing technique and linear regression to iteratively train the AHI surface reflectance, and built optimal surface reflectance relationships between visible and SWIR bands with three Normalized Difference Vegetation Index (NDVI) classifications over Beijing area. Based on these surface reflectance relationships, the AHI AOD data were retrieved through the radiation transmission function. The AOD products from the AErosol RObotic NETwork (AERONET) ground measurement, the MODerate resolution Imaging Spectroradiometer (MODIS) and the Japan Aerospace Exploration Agency (JAXA) official AHI were used to evaluate the performance of our AOD retrievals. At diurnal scale, more than 66% of AHI AOD retrievals fell within the EE in the afternoon, which indicated that these retrievals could capture the regional aerosol variability over Beijing area. In contrast, the AHI JAXA AOD product significantly overestimated aerosol loadings. The low AOD biases (13:00–16:00) under low aerosol conditions from our retrieval algorithm demonstrated that the AHI surface reflectance assumptions are available. However, AHI retrievals in XiangHe overestimated AOD under high aerosol conditions, which indicated that the urban aerosol model is inappropriate over this site. In addition, our AHI AOD algorithm was only applied over Beijing area in the summer of 2016. The retrieval time-independence in this algorithm has not been estimated in fall and winter when NDVI is lower. Future study will investigate this surface algorithm at larger temporal and spatial scales. © 2020 Elsevier Ltd
英文关键词	AERONET; Aerosol optical depth; Beijing; Himawari-8; Retrieval algorithm
语种	英语
scopus关键词	Geostationary satellites; Infrared radiation; Iterative methods; Optical properties; Petroleum prospecting; Radiometers; Reflection; Space research; Urban growth; Aerosol optical depths; Aerosol robotic networks; High temporal resolution; Japan Aerospace Exploration Agency; Moderate resolution imaging spectroradiometer; Normalized difference vegetation index; Radiation transmission; Temporal and spatial scale; Aerosols; AERONET; aerosol; algorithm; geostationary satellite; NDVI; optical depth; reflectance; satellite data; seasonal variation; spatiotemporal analysis; summer; surface reflectance; aerosol; algorithm; article; atmosphere; China; information retrieval; infrared radiation; Japan; linear regression analysis; optical depth; space; summer; vegetation; winter; Beijing [China]; China; Far East; Japan
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144962
作者单位	College of Environment and Planning, Henan UniversityHenan Province, China; State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China; School of Computer and Information Engineering, Henan UniversityHenan Province, China
推荐引用方式 GB/T 7714	Wang L.,Yu C.,Cai K.,et al. Retrieval of Aerosol Optical Depth from the Himawari-8 Advanced Himawari Imager data: Application over Beijing in the summer of 2016[J],2020,241.
APA	Wang L.,Yu C.,Cai K.,Zheng F.,&Li S..(2020).Retrieval of Aerosol Optical Depth from the Himawari-8 Advanced Himawari Imager data: Application over Beijing in the summer of 2016.Atmospheric Environment,241.
MLA	Wang L.,et al."Retrieval of Aerosol Optical Depth from the Himawari-8 Advanced Himawari Imager data: Application over Beijing in the summer of 2016".Atmospheric Environment 241(2020).