Hyperspectral Characteristics and Quantitative Remote Sensing Inversion of Gravel Grain Size in the North Tibetan Plateau
文献类型:期刊论文
作者 | Kong Bo2,3; Yu Huang2; Song Wu-jie1,2; Hou Yu-ting2; Xiang Qing2 |
刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS |
出版日期 | 2023-08-01 |
卷号 | 43期号:8页码:2381-2390 |
ISSN号 | 1000-0593 |
关键词 | Northern Tibetan plateau Gravel grain size Hyperspectral remote sensing Inversion Desertification |
DOI | 10.3964/j.issn.1000-0593(2023)08-2381-10 |
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. |
WOS关键词 | REFLECTANCE |
WOS研究方向 | Spectroscopy |
语种 | 英语 |
出版者 | OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS |
WOS记录号 | WOS:001054445900009 |
源URL | [http://ir.imde.ac.cn/handle/131551/57601] |
专题 | 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
通讯作者 | Yu Huang |
作者单位 | 1.Unit 61287 PLA, Chengdu 610036, Peoples R China 2.Chengdu Univ Technol, Sch Earth Sci, Chengdu 610059, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
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]. SPECTROSCOPY AND SPECTRAL ANALYSIS,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. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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