Abstract
Landslide hazards rank among the natural disasters with the highest frequency, widest distribution, and most severe losses globally, posing a grave threat to human life and property safety as well as major engineering facilities. Scientific monitoring serves as a critical technical prerequisite for landslide early warning, forecasting, and proactive prevention. Through years of intensive technical research and development, integrating multiple innovative technological methods including high-resolution optical remote sensing, satellite InSAR, UAV photogrammetry, and wireless sensor networks (WSN), landslide monitoring has evolved from traditional point-based manual monitoring to "space-air-ground" multi-dimensional collaborative monitoring, achieving remarkable success in geological disaster risk identification and monitoring-early warning in China. This paper systematically synthesizes the latest research progress of landslide monitoring technologies in China from a three-dimensional perspective of space (optical remote sensing and InSAR), air (UAV photogrammetry), and ground (professional monitoring such as Global Navigation Satellite Systems and crack gauges), drawing upon years of research insights into landslide initiation mechanisms and deformation-failure processes. It analyzes and discusses the technical advantages and applicability of different technologies in engineering practice, constructs a "space-air-ground" collaborative monitoring technical system for the entire process of landslide deformation and failure, and provides a novel thinking paradigm and empirical guidance for the scientific prevention of landslide geological disasters.
Full Text
Preamble
Technical Progress of Space-Air-Ground Collaborative Monitoring of Landslides
XU Qiang, ZHU Xing, LI Weile, DONG Xiujun, DAI Keren, JIANG Yanan, LU Huiyan, GUO Chen
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China
Abstract
Landslide disasters rank among the most frequent, widespread, and devastating natural hazards globally, posing severe threats to human lives, property, and critical engineering infrastructure. Scientific monitoring constitutes a crucial technical prerequisite for achieving early warning, forecasting, and proactive prevention of landslides.
Through years of dedicated technological development, landslide monitoring has evolved from traditional point-based manual observations to multi-dimensional "space-air-ground" collaborative monitoring by integrating various innovative techniques, including high-resolution optical remote sensing, satellite InSAR, unmanned aerial vehicle (UAV) photogrammetry, and wireless sensor networks (WSN). This advancement has yielded remarkable results in geological hazard risk identification and monitoring-warning systems in China.
Drawing upon years of research insights into landslide mechanisms and deformation-failure processes, this paper systematically summarizes the latest research progress in landslide monitoring technologies in China from a three-dimensional perspective: space (optical remote sensing and InSAR), air (UAV photogrammetry), and ground (professional monitoring instruments such as Global Navigation Satellite Systems and crack gauges). We analyze and discuss the technical advantages and applicability of different technologies in engineering practice, construct a "space-air-ground" collaborative monitoring technical framework for the entire deformation and failure process of landslides, and provide a novel paradigm and empirical guidance for the scientific prevention of landslide geological disasters.
Keywords: landslide; optical remote sensing; InSAR; UAV photogrammetry; wireless sensor network; space-air-ground collaborative monitoring