Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark
The numerical simulation of lake–groundwater interaction dynamics is very challenging, and, thus, only few model codes are available. The present study investigated the performance of a new method, namely, the Sloping Lakebed Method (SLM), in comparison to the widely used MODFLOW lake package (LAK3)...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/19/3054 |
| _version_ | 1797476460829605888 |
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| author | Chuiyu Lu Xin He Bo Zhang Jianhua Wang Jacob Kidmose Jerker Jarsjö |
| author_facet | Chuiyu Lu Xin He Bo Zhang Jianhua Wang Jacob Kidmose Jerker Jarsjö |
| author_sort | Chuiyu Lu |
| collection | DOAJ |
| description | The numerical simulation of lake–groundwater interaction dynamics is very challenging, and, thus, only few model codes are available. The present study investigated the performance of a new method, namely, the Sloping Lakebed Method (SLM), in comparison to the widely used MODFLOW lake package (LAK3). Coupled lake–groundwater models based on LAK3 and SLM were developed for Lake Hampen, Denmark. The results showed that both methods had essentially the same accuracy when simulating the lake water level, the groundwater head and the overall water balance. The SLM-based model had the potential to reproduce the change of the lake surface area in a more natural way. Moreover, the vertical discretization of a lake in the SLM is independent of the groundwater model, and, thus, the model grid at the top layers could be considerably coarsened without a loss of model accuracy. This could lead to savings in computational time of approximately 30%. |
| first_indexed | 2024-03-09T20:58:08Z |
| format | Article |
| id | doaj.art-29b2148bc9ab48c3add551dee54cea75 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T20:58:08Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-29b2148bc9ab48c3add551dee54cea752023-11-23T22:15:01ZengMDPI AGWater2073-44412022-09-011419305410.3390/w14193054Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western DenmarkChuiyu Lu0Xin He1Bo Zhang2Jianhua Wang3Jacob Kidmose4Jerker Jarsjö5State Key Laboratory of Simulation and Regulation of Water Cycles in River Basins, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaDepartment of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaDepartment of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycles in River Basins, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaDepartment of Hydrology, Geological Survey of Denmark and Greenland, 1350 Copenhagen, DenmarkDepartment of Physical Geography, Stockholm University, 10691 Stockholm, SwedenThe numerical simulation of lake–groundwater interaction dynamics is very challenging, and, thus, only few model codes are available. The present study investigated the performance of a new method, namely, the Sloping Lakebed Method (SLM), in comparison to the widely used MODFLOW lake package (LAK3). Coupled lake–groundwater models based on LAK3 and SLM were developed for Lake Hampen, Denmark. The results showed that both methods had essentially the same accuracy when simulating the lake water level, the groundwater head and the overall water balance. The SLM-based model had the potential to reproduce the change of the lake surface area in a more natural way. Moreover, the vertical discretization of a lake in the SLM is independent of the groundwater model, and, thus, the model grid at the top layers could be considerably coarsened without a loss of model accuracy. This could lead to savings in computational time of approximately 30%.https://www.mdpi.com/2073-4441/14/19/3054lake–groundwater interactionMODFLOWLAK3intercomparison study |
| spellingShingle | Chuiyu Lu Xin He Bo Zhang Jianhua Wang Jacob Kidmose Jerker Jarsjö Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark Water lake–groundwater interaction MODFLOW LAK3 intercomparison study |
| title | Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark |
| title_full | Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark |
| title_fullStr | Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark |
| title_full_unstemmed | Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark |
| title_short | Comparison of Numerical Methods in Simulating Lake–Groundwater Interactions: Lake Hampen, Western Denmark |
| title_sort | comparison of numerical methods in simulating lake groundwater interactions lake hampen western denmark |
| topic | lake–groundwater interaction MODFLOW LAK3 intercomparison study |
| url | https://www.mdpi.com/2073-4441/14/19/3054 |
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