Partial geoscience parameters inversion from InSAR observation

• Main Authors: LI Zhiwei, XU Wenbin, HU Jun, FENG Guangcai, YANG Zefa, LI Jia, ZHANG Heng, CHEN Qi, ZHU Jianjun, WANG Qijie, ZHAO Rong, DUAN Meng
• Format: Article in Journal/Newspaper
• Language: Chinese
• Published: Surveying and Mapping Press 2022
• Subjects: spaceborne sar; insar; ground surface deformation; geoscience parameters inversion; Mathematical geography. Cartography; GA1-1776; permafrost
• Online Access: https://doi.org/10.11947/j.AGCS.2022.20220156; https://doaj.org/article/5196c092365b48ceb412ae2f94aae28b

Natural factors or human activities can alter the stress of earth surface or its interior part, which generally causes disaster events. Obtaining the key geoscience paramters of disaster events and their developing progress is essential for us to accurately understand the disaster progress, scientifically interpret the disaster mechanism, and properly formulate acting strategy. InSAR is widely used in the parameter inversion of disaster events and their developing progress caused by natural factors or human activities. This paper firstly introduces the development of InSAR satellites and the basic principles of InSAR surface deformation monitoring. Subsequently, the research status of InSAR geoscience parameter inversion in various disaster-causing events is summarized, including earthquake, volcanic activity, groundwater extraction, mining, permafrost freezing and thawing, glacier movement, and underground fluid migration, etc. Finally, we conclude the main challenges and issues of InSAR geoscience parameter inversion.