气候变化领域集成服务门户(CCPortal): Evaluation of MODIS and two reanalysis aerosol optical depth products over AERONET sites

CCPortal

DOI	10.1016/j.atmosres.2019.01.009
	Evaluation of MODIS and two reanalysis aerosol optical depth products over AERONET sites
	Shi H.; Xiao Z.; Zhan X.; Ma H.; Tian X.
发表日期	2019
ISSN	0169-8095
起始页码	75
结束页码	80
卷号	220
英文摘要	This study selects 400 sites from Aerosol Robotic Network (AERONET) over 2002–2015 to develop an aerosol optical depth (AOD) evaluation dataset, which is used to evaluate two reanalysis AOD datasets (MERRAero and MERRA-2) from Modern-Era Retrospective analysis for Research and Applications (MERRA) projects, and satellite AOD datasets from Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) products. Each AOD dataset is first evaluated individually, and then, a comparison of the MODIS, MERRAero and MERRA-2 datasets is conducted. The results show that the reanalysis MERRA-2 AOD dataset has a comparable accuracy (RMSE = 0.119, MBE = −0.008) with the satellite MODIS AOD datasets (RMSE = 0.110, MBE = 0.011). The MERRA-2 AOD dataset has similar spatial distributions with MODIS data and can capture the dynamic changes of AOD temporally. Compared to MERRAero, the MERRA-2 product improves, but it still slightly underestimates AERONET AOD in general. The MODIS AOD datasets perform differently compared to AERONET AOD due to different algorithms and spatial resolutions. Compared to AERONET AOD, the MODIS AOD datasets generated by the deep blue algorithm are negative biased, while the MODIS AOD datasets from dark target algorithm and the merged dataset are positively biased. The precisions of the Aqua MODIS AOD datasets are higher than the corresponding Terra MODIS AOD datasets. © 2019 Elsevier B.V.
英文关键词	AERONET; AOD; Evaluation; MERRA; MODIS
语种	英语
scopus关键词	Aerosols; Optical properties; Supercomputers; AERONET; Aerosol robotic networks; Evaluation; MERRA; Moderate resolution imaging spectroradiometer; MODIS; Research and application; Retrospective analysis; Radiometers; AERONET; aerosol; algorithm; MODIS; optical depth; precision; spatial distribution
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162220
作者单位	State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China; School of remote sensing and information engineering, Wuhan University, Wuhan, Hubei 430079, China
推荐引用方式 GB/T 7714	Shi H.,Xiao Z.,Zhan X.,et al. Evaluation of MODIS and two reanalysis aerosol optical depth products over AERONET sites[J],2019,220.
APA	Shi H.,Xiao Z.,Zhan X.,Ma H.,&Tian X..(2019).Evaluation of MODIS and two reanalysis aerosol optical depth products over AERONET sites.Atmospheric Research,220.
MLA	Shi H.,et al."Evaluation of MODIS and two reanalysis aerosol optical depth products over AERONET sites".Atmospheric Research 220(2019).