NDLI: Detection of Dust Storms by Using Daytime and Nighttime Multi-spectral MODIS Images

Content Provider	IEEE Xplore Digital Library
Author	Liu San-chao Liu Qinhuo Gao Maofang Chen Liangfu
Copyright Year	2006
Description	Author affiliation: Inst. of Remote Sensing Applic., Chinese Acad. of Sci., Beijing (Liu San-chao; Liu Qinhuo; Chen Liangfu)
Abstract	Dust storms greatly affect the environment and the resources in arid and semi-arid areas. In this paper, we study the process of an Asian dust storm in the north of China in 2005 by means of Terra and Aqua MODIS data, which could monitor dust storms both in daytime and nighttime. We use three thermal infrared (TIR), 8.5 mum, 11 mum, and 12 mum, and a tri-spectral technique presented by Ackerman (1997). We find that combining brightness temperature differences BT8.5- BT11 with negative BT11- BT12 can detect dust storms in China. Furthermore, the pre-processing of images, such as cloud screening, is important for dust storm monitoring. Compared to daytime visible and near infrared RGB images, the TIR method predicted dust storm very well and could also obtain useful information in nighttime. We also analyzed dust storm motion by four MODIS images within 24 hours. Our results showed that the dust storm motions from inter land to ocean and relies on the main wind direction. This information is very important for studying the processes of dust storm.
Starting Page	294
Ending Page	296
File Size	1964469
Page Count	3
File Format	PDF
ISBN	0780395107
DOI	10.1109/IGARSS.2006.80
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Storms MODIS Monitoring Brightness temperature Clouds Infrared imaging Image analysis Image motion analysis Motion analysis Oceans
Content Type	Text
Resource Type	Article

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