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DOI | 10.1016/j.jhydrol.2024.130902 |
Machine learning for predicting shallow groundwater levels in urban areas | |
发表日期 | 2024 |
ISSN | 0022-1694 |
EISSN | 1879-2707 |
起始页码 | 632 |
卷号 | 632 |
英文摘要 | In this study, the potential of machine learning (ML) for shallow groundwater level predictions in urban areas is explored. It focuses on curating a training dataset that represents the spatial variability of the water table depth, tests the effect of using different feature variables in ML modeling, and finally, compares two ML models with a physically-based (PB) urban hydrological model. To curate a consistent training dataset, a method of transferring low-frequency groundwater level measurements to a minimum water table depth (MWTD) was developed. Two ML models, one with national maps as feature variables and the other including local high-resolution urban feature variables, were trained against the same 280 groundwater level data points and applied to predict the MWTD at a 10 m spatial resolution for the city of Odense, Denmark. The ML models reached a similar fit to the observations, with an RMSE of 1.1 m and 1.3 m, respectively, and outperformed the urban PB model. In densely urbanized areas, the ML models and the PB model showed up to a 1.5 m difference in predictions of MWTD. The results suggest that ML modeling has the potential to provide spatially high-resolution predictions of the shallow groundwater table in urban areas, which represents a challenge for PB models because of their model structure and the lack of hydrological knowledge hindering meaningful parameterization schemes. Furthermore, a SHapley Additive exPlanation (SHAP) analysis of the feature variables illustrates that ML models can be utilized to explore the hydrological relations in urban domains, by analyzing the feature variables' relations. |
英文关键词 | Urban groundwater; Machine learning; Water table depth; CatBoost; SHAP |
语种 | 英语 |
WOS研究方向 | Engineering ; Geology ; Water Resources |
WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
WOS记录号 | WOS:001194202000001 |
来源期刊 | JOURNAL OF HYDROLOGY
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/301010 |
作者单位 | University of Copenhagen; Geological Survey Of Denmark & Greenland |
推荐引用方式 GB/T 7714 | . Machine learning for predicting shallow groundwater levels in urban areas[J],2024,632. |
APA | (2024).Machine learning for predicting shallow groundwater levels in urban areas.JOURNAL OF HYDROLOGY,632. |
MLA | "Machine learning for predicting shallow groundwater levels in urban areas".JOURNAL OF HYDROLOGY 632(2024). |
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