Land subsidence modelling using a long short-term memory algorithm based on time-series datasets

Li, Huijun; Zhu, Lin; Gong, Huili; Sun, Hanrui; Yu, Jie

With the rapid growth of data volume and the development of artificial intelligence technology, deep-learning methods are a new way to model land subsidence. We utilized a long short-term memory (LSTM) model, a deep-learning-based time-series processing method to model the land subsidence under multiple influencing factors. Land subsidence has non-linear and time dependency characteristics, which the LSTM model takes into account. This paper modelled the time variation in land subsidence for 38 months from 2011 to 2015. The input variables included the change in land subsidence detected by InSAR technology, the change in confined groundwater level, the thickness of the compressible layer and the permeability coefficient. The results show that the LSTM model performed well in areas where the subsidence is slight but poorly in places with severe subsidence.

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Li, Huijun / Zhu, Lin / Gong, Huili / et al: Land subsidence modelling using a long short-term memory algorithm based on time-series datasets. 2020. Copernicus Publications.

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