Ms. Xiaomin Dai Profile

Xiaomin Dai

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Proceedings Article | 21 February 2024 Paper

Assessment of geological hazard susceptibility based on remote sensing images

Xinjun Song, Xiaomin Dai

Proceedings Volume 12988, 129880T (2024) https://doi.org/10.1117/12.3024132

KEYWORDS: Landslides, Remote sensing, Image processing, Image fusion, Satellites, Hazard analysis, Visualization, Satellite navigation systems, Geographic information systems, Deformation

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Geologic hazards have attracted more attention around the world. This paper tries to comb the relevant literature through Web Of Science, lists the leading indicators and methods of geological hazard susceptibility assessment, discusses the appropriate, suitable means of geological hazards, and gives the future development direction of the existing evaluation in this field based on Remote Sensing images research work is systematically reviewed. The study shows that the most critical highway slope geological hazards - landslides and mudslides - negatively impact human lives. Specifically, remote sensing technology is the primary method of acquiring image data for studying highway slope geological hazards. In addition, the application of emerging technologies and models, the fusion of multi-technology tools, and the integration of multiple models may enhance the accuracy of vulnerability assessment related to geological hazards, which should be emphasized more in future studies.

Proceedings Article | 20 February 2024 Paper

Research on regional accessibility and evolution of spatial structure: based on the demonstration of the core zone 30a of the Silk Road economic belt

Xiaomin Dai, Menghan Liu, Qiang Lin, Xiangpeng Li

Proceedings Volume 13064, 130643N (2024) https://doi.org/10.1117/12.3015665

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The transportation network is the foundation and skeleton of regional development, and it is essential to promote the efficient flow and rational allocation of various resource factors. The "Vision and Actions for Promoting the Construction of the Silk Road Economic Belt and the 21st Century Maritime Silk Road" emphasizes that infrastructure interconnection is a priority area in constructing the "Belt and Road." Therefore, this paper explores the accessibility and spatial structure evolution of the country's westward opening based on the 30-year transportation network of the core area of the Silk Road Economic Belt and provides primary data for exploring the depth of the Belt and Road. The results of the study show that: in terms of accessibility evolution, there is a continuous step transition with Urumqi, Changji, and Korla as the center, and the center is high, and the border is low; the accessibility of the Kazakhstan-Mongolia-Russia triple junction has evolved most significantly and achieved a "triple jump" within the study period; while the China-Pakistan Economic Corridor has yet to continue and develop, and the southwest section is still accessible. The southwest section is still a relatively lagging section in terms of accessibility. As for the evolution of spatial structure, the density of the transportation network doubled during the study period, and the overall increase of central potential was 19.3%, indicating that the spatial scope of structural adjustment of the transportation network becomes more and more extensive as the level of regional connectivity continues to expand.

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