Abstract
Land subsidence due to groundwater extraction is a serious issue in Mekong Delta Vietnam, especially when it combines with the sea level rise. Various models were established to study the problem. Usually, two steps models are used. First, the groundwater models are solved to obtain changes in the water table resulting in changes in effective stress. Then, land subsidence magnitude is calculated based on the one-dimensional consolidation theory. After analyzing carefully land subsidence models for the Mekong Delta, we would like to discuss here some concerns related to the described data and methodologies, which are related to (1) the inconsistency between the compression index and the specific storage, (2) the spatial distribution of parameters, (3) obtained parameters using the parameter estimation tool, (4) comparisons between INSAR data and model results.
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Pham, H., Sass, I., Nguyen, O. (2022). Concerns Related to Modelling Land Subsidence of Mekong Delta. In: Ha-Minh, C., Tang, A.M., Bui, T.Q., Vu, X.H., Huynh, D.V.K. (eds) CIGOS 2021, Emerging Technologies and Applications for Green Infrastructure. Lecture Notes in Civil Engineering, vol 203. Springer, Singapore. https://doi.org/10.1007/978-981-16-7160-9_102
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DOI: https://doi.org/10.1007/978-981-16-7160-9_102
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