Arid Zone Research ›› 2025, Vol. 42 ›› Issue (6): 1126-1137.doi: 10.13866/j.azr.2025.06.15

• Ecology and Environment • Previous Articles     Next Articles

Deformation monitoring and prediction of Xijitan giant landslide based on SBAS-InSAR technology and long short-term memory neural network

LI Shuaifei1(), LIU Changyi1(), HU Xiasong1, TANG Binyuan2,3, WU Zhijie1, DENG Taiguo1, XING Guangyan4, ZHAO Jimei4, LEI Haochuan1   

  1. 1. School of Geological Engineering, Qinghai University, Xining 810016, Qinghai, China
    2. Qinghai Institute of Geological Surveying and Mapping Geographic Information, Xining 810001, Qinghai, China
    3. Qinghai Provincial Key Laboratory of New Geographic Information Technology for Plateau Surveying and Mapping, Xining 810001, Qinghai, China
    4. College of Agriculture and Animal Husbandry, Qinghai University,Xining 810016, Qinghai, China
  • Received:2024-11-14 Revised:2025-01-24 Online:2025-06-15 Published:2025-06-11
  • Contact: LIU Changyi E-mail:afei2275@163.com;liuchangyi1991@sina.com

Abstract:

This study examines the surface deformation characteristics and deformation rate prediction of large-scale landslides in the upper regions of the Yellow River between the Longyang and Jishi Gorge riverbanks. The study area was the Xijitan giant landslide within the Guide region of the upper Yellow River. The Small Baseline Subset Interferometric Synthetic Aperture Rader(SBAS-InSAR)technology was employed to monitor the surface deformation of the Xijitan giant landslide and analyze, its deformation rates and variation characteristics for the period 2019-2022. The results show that the following. (1) The maximum surface deformation rate of the landslide body was -96 mm·a-1, with a maximum cumulative deformation of 464.71 mm. Distinct deformation zones were observed along the front and rear edges of the landslide body, with surface deformation rates ranging across -96-16 mm·a-1. (2) The cumulative deformation of characteristic points on a landslide body, determined using SBAS-InSAR technology, exhibited a maximum cumulative deformation of -140.50 mm. (3) The long short-term memory (LSTM) neural network model was used to predict the cumulative deformation of these points, and the results were compared with those obtained using Support Vector Machine(SVM) and Back Propagation(BP) neural network models. The LSTM model demonstrated high prediction accuracy, with an absolute error within 5 mm and a goodness-of-fit (R2) greater than 0.8. This confirmed the effectiveness of the LSTM model in predicting the cumulative surface deformation of landslides. Thus, the findings of this study provide data support and practical guidance for the enhanced monitoring of giant landslide deformation in the upper Yellow River region and the early detection of potential landslides.

Key words: upper Yellow River, Longyang Gorge to Jishi Gorge Basin, Xijitan giant landslide, LSTM neural network, SBAS-InSAR, surface deformation monitoring, prediction of surface cumulative deformation