Evaluation of Polarized Remote Sensing of Aerosol Optical Thickness Retrieval over China

	Evaluation of Polarized Remote Sensing of Aerosol Optical Thickness Retrieval over China
	Chen, Hao 1; Cheng, Tianhai 1; Gu, Xingfa 1; Li, Zhengqiang 1; Wu, Yu 1
刊名	REMOTE SENSING
	2015
卷号	7 期号:10 页码:12336-12355
关键词	POLDER aerosol remote sensing validation China
通讯作者	Cheng, TH (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China.
英文摘要	The monitoring capability of a polarized instrument (POLDER) under high aerosol loading conditions over China is investigated. The aerosol optical thickness (AOT), which infers the aerosol burden, is used to measure the satellite monitoring capabilities. AOT products retrieved from POLDER on low aerosol loading days, and products from a radiometric instrument (MODIS) on high and low aerosol loading days, are presented for comparison. Our study reveals that for high aerosol days, the monitoring capability of the polarized instrument is lower than that of the traditional instrument. The accuracy of matched POLDER fine-AOTs is lower than that of MODIS-matched AOTs. On low aerosol loading days, the performance of the polarized instrument is good when monitoring the aerosol optical thickness. Further analysis reveals that for the high aerosol loading days, the mean relative errors of matched POLDER fine AOTs and MODIS AOTs with respect to AERONET measurements are 44% and 16%, respectively. For the low aerosol loading days, the mean relative errors of POLDER and MODIS measurements with respect to AERONET measurements are 41% and 40%, respectively. During high aerosol days, POLDER-retrieved fine-AOTs reveal a poor accuracy with only 14% of matches falling within the error range, which is nearly one fourth of the MODIS regression results (51.59%). For the low aerosol loading days, the POLDER regression results are good. Approximately 62% of the POLDER measurements fall within the expected error range +/-(0.05 + 15%) compared with the AERONET observed values.
研究领域[WOS]	Remote Sensing
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000364328600052
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38093]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Chen, Hao 2.Cheng, Tianhai 3.Gu, Xingfa 4.Li, Zhengqiang 5.Wu, Yu] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Chen, Hao,Cheng, Tianhai,Gu, Xingfa,et al. Evaluation of Polarized Remote Sensing of Aerosol Optical Thickness Retrieval over China[J]. REMOTE SENSING,2015,7(10):12336-12355.
APA	Chen, Hao,Cheng, Tianhai,Gu, Xingfa,Li, Zhengqiang,&Wu, Yu.(2015).Evaluation of Polarized Remote Sensing of Aerosol Optical Thickness Retrieval over China.REMOTE SENSING,7(10),12336-12355.
MLA	Chen, Hao,et al."Evaluation of Polarized Remote Sensing of Aerosol Optical Thickness Retrieval over China".REMOTE SENSING 7.10(2015):12336-12355.