Abstract
Geological disasters occur frequently in China, with particularly severe disaster-induced losses. Multiple major geological disaster events in recent years have demonstrated that geological disaster prevention and control in densely vegetated mountainous areas and inaccessible regions constrained by terrain conditions remain challenging for traditional mass monitoring and mass prevention approaches. Aerial remote sensing technology, leveraging its advantages of unique perspective and operational flexibility, can rapidly and efficiently reveal the spatial distribution characteristics and spatiotemporal evolution patterns of geological disasters, playing a significant role in geological disaster investigation, evaluation, and emergency response. This paper, based on a brief overview of aerial remote sensing technology, platforms, and sensors, systematically summarizes domestic and international research and applications of aerial remote sensing in geological disaster identification and interpretation, investigation and evaluation, long-term monitoring, emergency response, VR visualization, and other aspects. It also elaborates on the opportunities and challenges currently faced by aerial remote sensing applications in geological disasters, and provides an outlook on future development trends of aerial remote sensing in geological disaster research.
Full Text
Application Status and Prospects of Aerial Remote Sensing Technology for Geohazards
XU Qiang¹, GUO Chen¹,², DONG Xiujun¹
¹State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China
²China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
Abstract
Geological disasters occur frequently in China, inflicting particularly severe losses. Recent major events have demonstrated that disaster prevention and control in densely vegetated mountainous areas and inaccessible regions constrained by terrain remain significant challenges for traditional mass monitoring and prevention systems. Aerial remote sensing technology, leveraging its unique perspective and operational flexibility, can rapidly and efficiently reveal the spatial distribution characteristics and spatiotemporal evolution patterns of geological disasters, playing a vital role in investigation, evaluation, and emergency response. This paper first provides a brief overview of aerial remote sensing technologies, platforms, and sensors, then systematically summarizes domestic and international research applications in geological disaster identification and interpretation, investigation and evaluation, long-term monitoring, emergency response, and VR visualization. Additionally, it expounds on the opportunities and challenges currently facing aerial remote sensing applications for geological disasters, and offers prospects for future development trends in this field.
Keywords: geological disasters; aerial remote sensing; airborne LiDAR; UAV; investigation and evaluation