Abstract:To accurately identify the Wuming mountain landslide hazards, based on SBAS-InSAR technology, we use Sentinel-1A/B ascending and descending track data to invert the vertical and slope deformation of the area from March 2017 to April 2021. We identify the landslide hazards and dangerous points, then analyze the time series of deformation and the reason of landslides. The results show that the potential geological hazards in Wuming mountain can be divided into three main areas, in which the maximum vertical cumulative deformation reaches -38.28 mm, and the maximum slope cumulative deformation near the free surface is 22.10 mm. The amount of precipitation has different degrees of influence on the stability of slope, and the peak value of cumulative deformation of slope lags that of precipitation. The research results can trace back the deformation characteristics of Wuming mountain landslide hazards in Jizhou, provide new reference and ideas for the monitoring and identification of geological disasters in northern mountainous areas of Tianjin and offer guarantees and technical support for disaster prevention and mitigation.
WANG Yong,YANG Jun,YAN Yong et al. Early Identification and Monitoring of Wuming Mountain Landslide Hazards in Jizhou, Tianjin[J]. jgg, 2022, 42(9): 881-884.