Acta Geodaetica et Cartographica Sinica ›› 2022, Vol. 51 ›› Issue (10): 2020-2033.doi: 10.11947/j.AGCS.2022.20220302

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Application status and prospect of aerial remote sensing technology for geohazards

XU Qiang1, GUO Chen1,2, DONG Xiujun1   

  1. 1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), Chengdu 610059, China;
    2. China Railway Eryuan Engineering Group Co. LTD., Chengdu 610031, China
  • Received:2022-05-05 Revised:2022-07-11 Published:2022-11-05
  • Supported by:
    The National Natural Science Foundation of China (No. 42072306);National Innovation Research Group Science Fund (No. 41521002)

Abstract: Geoharzards occur frequently in China, and the losses are especially serious. A number of catastrophic geohazards have occurred in recent years, which indicate that the prevention of geohazard in mountainous areas covered by high vegetation and in some inaccessible areas restricted by topographic conditions is still a difficult problem for traditional methodology. Aerial remote sensing technology can quickly and efficiently reveal the spatial distribution characteristics and spatial and temporal evolution rules of geoharzard, which has played an important role in the field of geoharzard prevention. Based on the brief introduction of the airborne remote sensing technology, platform and sensor, this paper systematically summarizes the research and application of airborne remote sensing at home and abroad in the geoharzard identification, investigation and evaluation, long-term monitoring, emergency response, virtual reality displayed. Analyzes the challenges faced by the application of airborne remote sensing in geoharzard, and looks forward to the development of the application of airborne remote sensing in geoharzard research trend.

Key words: geoharzard, aerial remote sensing, airborne LiDAR, UAV, survey and evaluation

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