Bulletin of Surveying and Mapping ›› 2020, Vol. 0 ›› Issue (7): 125-129.doi: 10.13474/j.cnki.11-2246.2020.0228

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Large-area surface deformation monitoring using Sentinel-1 SAR data and SBAS technology

ZHANG Jinying1, CUI Liang1, LIU Zengmin1, WANG Xintian1, LIN Lin2, XU Fengling3   

  1. 1. Shandong Provincial Institute of Land Surveying and Mapping, Jinan 250013, China;
    2. Water Research Institute of Shandong Province, Jinan 250014, China;
    3. Shandong Huafeng Geographic Information and Technology Company limited, Jinan 250101, China
  • Received:2019-12-20 Revised:2020-05-13 Online:2020-07-25 Published:2020-08-01

Abstract: Radar Interferometry technology provides a new method for high-precision, rapid and accurate monitoring of ground subsidence. However, when the ground subsidence covers an area equal to tens of thousands of square kilometers, high measurement accuracy and large-range synchronous measurement is required. In order to solve this problem, Sentinel-1 data are used to analyze terrain deformation in the area of Yellow River delta, the CORS data is used for verification and temporal and spatial distribution of land subsidence is examined. The study demonstrates the applicability of this method to deformation monitoring in large area, and provides an important basis for subsidence prevention and control in the region.

Key words: SBAS, large area, surface deformation, Sentinel-1 data, precision analysis

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