NDLI: An advanced synergetic algorithm for aerosol optical depth retrieval from HJ-1A HSI and Terra MODIS data based on mutual information

Content Provider	IEEE Xplore Digital Library
Author	Yingjie Li Yong Xue Xingwei He Jie Guang Ying Wang Linlu Mei Hui Xu
Copyright Year	2011
Description	Author affiliation: State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, 100101, China (Yingjie Li; Yong Xue; Xingwei He; Jie Guang; Ying Wang; Linlu Mei; Hui Xu)
Abstract	In this paper, an advanced synergetic algorithm for aerosol retrieval from small satellite data is presented and applied on MODerate resolution Imaging Spectroradiometer (MODIS) and the Hyper-Spectral Imager (HSI) data from China HJ-1A satellite of the Environment and Disasters Monitoring Microsatellite Constellation. Using this algorithm, 500m MODIS data are downscaled to 100m based on maximal mutual information. By synergy of MODIS and HJ-1A HSI data, we obtained 100m × 100m aerosol optical depth (AOD) at 550nm over Beijing City, on April 5, 2009. Comparison with Aerosol Robotic Network (AERONET) measurement data, our results have good precision. The correlation coefficient is about 0.86 and the uncertainty is found to be Δτ = ±0.01 ± 0.23τ. From 100m AOD map, we can see more details of aerosols' spatial distribution. It is very useful and powerful for urban air quality monitoring.
Starting Page	3296
Ending Page	3299
File Size	578486
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049924
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MODIS Aerosols Remote sensing Satellites Mutual information Optical imaging Optical sensors mutual information aerosol optical depth synergy HJ-1A HSI
Content Type	Text
Resource Type	Article

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