Modeling of land subsidence using GIS-based artificial neural network in Yunlin County, Taiwan

In this study, the land subsidence in Yunlin County, Taiwan, was modeled using an artificial neural network (ANN). Maps of the fine-grained soil percentage, average maximum drainage path length, agricultural land use percentage, electricity consumption of wells, and accumulated land subsidence depth...

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Bibliographic Details
Published in:Scientific reports 2023-03, Vol.13 (1), p.4090-4090, Article 4090
Main Authors: Ku, Cheng-Yu, Liu, Chih-Yu
Format: Article
Language:English
Subjects:
704/172
704/4111
Agricultural land
Electricity
Geographic information systems
Humanities and Social Sciences
Land subsidence
Land use
multidisciplinary
Neural networks
Remote sensing
Science
Science (multidisciplinary)
Spatial analysis
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Summary:In this study, the land subsidence in Yunlin County, Taiwan, was modeled using an artificial neural network (ANN). Maps of the fine-grained soil percentage, average maximum drainage path length, agricultural land use percentage, electricity consumption of wells, and accumulated land subsidence depth were produced through geographic information system spatial analysis for 5607 cells in the study area. An ANN model based on a backpropagation neural network was developed to predict the accumulated land subsidence depth. A comparison of the model predictions with ground-truth leveling survey data indicated that the developed model had high accuracy. Moreover, the developed model was used to investigate the relationship of electricity consumption reduction with reductions in the total area of land with severe subsidence (> 4 cm per year); the relationship was approximately linear. In particular, the optimal results were obtained when decreasing the electricity consumption from 80 to 70% of the current value, with the area of severe land subsidence decreasing by 13.66%.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-31390-5