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Remote Sensing for Land & Resources    2021, Vol. 33 Issue (2) : 134-140     DOI: 10.6046/gtzyyg.2020190
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Application and analysis of ZY1-02D hyperspectral data in geological and mineral survey
LI Genjun1,2(), YANG Xuesong1,2(), ZHANG Xing1,2, LI Xiaomin1,2, LI Delin1,2, DU Cheng1,2
1. Key Laboratory of Geological Processes and Mineral Resources of the Northern Qinghai-Tibet Plateau in Qinghai Province, Xining 810012, China
2. Qinghai Geological Survey, Xining 810012, China
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Abstract  

The ZY1-02D satellite is the first hyperspectral operational satellite in China. To test the application ability of ZY1-02D hyperspectral loading data in geological and mineral survey, the authors identified lithologic and mineral information on the basis of data pre-processing, and the results were compared with GF-5 data. The application ability of the data was analyzed effectively in combination with the results of field survey. The results are as follows: the coincidence degree of ZY1-02D hyperspectral data reflectivity spectrum curve and geological body spectrum curve is high in shape, which can meet the requirements of rock and mineral information identification; through the identification of rock and mineral information in combination with the geological and mineral data of the study area, it is shown that the lithological information of marble, monzogranite, calcite and dolomite and alteration mineral information of chlorite and limonite are consistent with the measured results. The results show that the data has good recognition effect on the information of rocks and minerals, and can provide data guarantee for the application of hyperspectral technology in the field of geology and mineral exploration.
Keywords spectral characteristic      geological and mineral survey      application analysis      ZY1-02D data      east area of Lenghu Town in Qinghai Province     
ZTFLH:  TP79  
Corresponding Authors: YANG Xuesong     E-mail: ligenjun2008@163.com;455132796@qq.com
Issue Date: 21 July 2021
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Genjun LI
Xuesong YANG
Xing ZHANG
Xiaomin LI
Delin LI
Cheng DU
Cite this article:   
Genjun LI,Xuesong YANG,Xing ZHANG, et al. Application and analysis of ZY1-02D hyperspectral data in geological and mineral survey[J]. Remote Sensing for Land & Resources, 2021, 33(2): 134-140.
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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2020190     OR     https://www.gtzyyg.com/EN/Y2021/V33/I2/134
Fig.1  Geological map of the study area
参数 ZY1-02D GF-5
光谱范围 0.40~2.5 μm共166个谱段 0.40~2.5 μm共330个谱段
空间分辨率 30 m 30 m
光谱分辨率 VNIR: 10 nm,共76个谱段 VNIR: 5 nm,共150个谱段
SWIR: 20 nm,共90个谱段 SWIR: 10 nm,共180个谱段
幅宽 60 km 60 km
Tab.1  Data parameter of ZY1-02D与GF-5
Fig.2  The synthetic images of ZY1-02D star Ahsi Data B29(R), B19(G), B10(B) in the study area
Fig.3  Reconstruction of SWIR (2 501 nm) stripe
Fig.4  Comparison of spectral characteristics of marble between ZY1-02D, JHU data and GF-5 data
Fig.5  Technical flow of endmember spectrum identification
Fig.6  Map of mineral distribution in the research area
Fig.7  Comparison of calcite mineral information in the research area
Fig.8  The verification of Marble in the northwest of the study area
Fig.9  The Adamellite in the south of the study area
Fig.10  Distribution of rock-forming minerals in Marble strata in the northwest of the study area
Fig.11  Distribution of altered mineral information in the south of the study area
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