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Stratigraphic division of loess along loess profile based on hyperspectral remote sensing |
Jing CUI1( ), Xinfeng DONG2, Rui DING1( ), Shimin ZHANG1, Conghe WANG3, Hengxin LU1, Yanyun SUN2 |
1.Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085,China 2.China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China 3.Institute of Disaster Prevention, Sanhe 065201, China |
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Abstract Invisible fault identifying in loess area is a difficult problem in active fault study in northern China. Detailed stratigraphic division of loess area by the naked eye is very difficult due to the insignificant difference of the granularities and the colors, which would affect the identification of the obscured fault and paleo-seismic event. Spectral technique has been used for magnetic susceptibility estimation. Magnetic susceptibility (MS) has been considered to be a measure of the degree of pedogenic activity and excellent proxies for terrestrial climatic fluctuations. In this study, multiple linear regression was used to build MS estimation models based on the spectral features. A model was built and was applied to hyperspectral image. Test of datasets indicates that this model is very successful. The applying of this model to hyperspectral image shows that the intensity distribution of MS could be used for stratigraphic division.
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Keywords
hyperspectral remote sensing
magnetic susceptibility
stratigraphic division of loess
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Corresponding Authors:
Rui DING
E-mail: jingcui_86@yahoo.com;reiding@hotmail.com
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Issue Date: 30 May 2018
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