干旱区生态环境知识资源中心(Arid): Hyperspectral Characteristics and Quantitative Remote Sensing Inversion of Gravel Grain Size in the North Tibetan Plateau

Arid

DOI	10.3964/j.issn.1000-0593(2023)08-2381-10
	Hyperspectral Characteristics and Quantitative Remote Sensing Inversion of Gravel Grain Size in the North Tibetan Plateau
	Kong Bo; Yu Huang; Song Wu-jie; Hou Yu-ting; Xiang Qing
通讯作者	Yu, H
来源期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN	1000-0593
出版年	2023
卷号	43 期号:8 页码:2381-2390
英文摘要	As grassland degradation and desertification are becoming more serious in the northern Tibetan plateau, estimating gravel grain size is important for desertification evaluation and dynamic monitoring. Based on hyperspectral remote sensing technology, this paper combines ground survey, GPS positioning, gravel spectroscopy and gravel grain size determination, preferably selecting the waveband with the highest correlation with gravel grain size, and establishes a linear fitting model between gravel grain size and sensitive waveband, and extracts the spatial distribution characteristics of gravel grain size in the experimental area using hyperspectral images of HMS-5. The results show that: the bands with better correlation are at 369. 9, 371. 5 and 910. 5 nm, where the first-order derivative at 910. 5 nm has the best fitting effect with gravel grain diameter (R-2 0. 738); the fitting comparison of different spectral absorption parameters with gravel grain diameter, the fitting accuracy of the fitted regression model established by the absorption area near 2 340 nm and the gravel grain diameter is The fitting accuracy of the fitted regression model is relatively high (R-2 =0. 728); in the inversion of gravel grain size by spatial remote sensing, the accuracy reaches 70%, as well as briefly analyzing the spatial distribution characteristics of gravel grain size, which provides a reference basis for the desertification analysis of the northern Tibetan plateau.
英文关键词	Northern Tibetan plateau Gravel grain size Hyperspectral remote sensing Inversion Desertification
类型	Article
语种	中文
收录类别	SCI-E
WOS记录号	WOS:001054445900009
WOS关键词	REFLECTANCE
WOS类目	Spectroscopy
WOS研究方向	Spectroscopy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398718
推荐引用方式 GB/T 7714	Kong Bo,Yu Huang,Song Wu-jie,et al. Hyperspectral Characteristics and Quantitative Remote Sensing Inversion of Gravel Grain Size in the North Tibetan Plateau[J],2023,43(8):2381-2390.
APA	Kong Bo,Yu Huang,Song Wu-jie,Hou Yu-ting,&Xiang Qing.(2023).Hyperspectral Characteristics and Quantitative Remote Sensing Inversion of Gravel Grain Size in the North Tibetan Plateau.SPECTROSCOPY AND SPECTRAL ANALYSIS,43(8),2381-2390.
MLA	Kong Bo,et al."Hyperspectral Characteristics and Quantitative Remote Sensing Inversion of Gravel Grain Size in the North Tibetan Plateau".SPECTROSCOPY AND SPECTRAL ANALYSIS 43.8(2023):2381-2390.