Evaluation of alternative conceptual models for groundwater modelling
This study evaluates the alternative conceptual models for groundwater modelling. A true model was created with a synthetic alluvial fan-plain hydrogeological framework. Various alternative conceptual models were evaluated for groundwater flow simulations. The first alternative model is a single aqu...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-05-01
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| Series: | Geoscience Frontiers |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987116300020 |
| _version_ | 1797757992643330048 |
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| author | Yangxiao Zhou H.M.P.S.D. Herath |
| author_facet | Yangxiao Zhou H.M.P.S.D. Herath |
| author_sort | Yangxiao Zhou |
| collection | DOAJ |
| description | This study evaluates the alternative conceptual models for groundwater modelling. A true model was created with a synthetic alluvial fan-plain hydrogeological framework. Various alternative conceptual models were evaluated for groundwater flow simulations. The first alternative model is a single aquifer layer model; the second alternative model is a 3-layer aquifer model; and the third model is a 5-layer model consisting of 3 aquifers separated by 2 aquitards. All models could fit very well to the observations with optimized values of hydraulic conductivities. However, the single aquifer layer model can only compute water balance components with good accuracy. The 3-layer aquifer model can be used for water balance computation and groundwater head simulation with small errors. The 5-layer model is capable of simulating water budget, groundwater head distribution and travel times with high accuracy. Multi-model analysis found only the 3rd alternative model superior. |
| first_indexed | 2024-03-12T18:23:31Z |
| format | Article |
| id | doaj.art-dad80db922854d25984201e6c6637098 |
| institution | Directory Open Access Journal |
| issn | 1674-9871 |
| language | English |
| last_indexed | 2024-03-12T18:23:31Z |
| publishDate | 2017-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Geoscience Frontiers |
| spelling | doaj.art-dad80db922854d25984201e6c66370982023-08-02T08:43:07ZengElsevierGeoscience Frontiers1674-98712017-05-018343744310.1016/j.gsf.2016.02.002Evaluation of alternative conceptual models for groundwater modellingYangxiao ZhouH.M.P.S.D. HerathThis study evaluates the alternative conceptual models for groundwater modelling. A true model was created with a synthetic alluvial fan-plain hydrogeological framework. Various alternative conceptual models were evaluated for groundwater flow simulations. The first alternative model is a single aquifer layer model; the second alternative model is a 3-layer aquifer model; and the third model is a 5-layer model consisting of 3 aquifers separated by 2 aquitards. All models could fit very well to the observations with optimized values of hydraulic conductivities. However, the single aquifer layer model can only compute water balance components with good accuracy. The 3-layer aquifer model can be used for water balance computation and groundwater head simulation with small errors. The 5-layer model is capable of simulating water budget, groundwater head distribution and travel times with high accuracy. Multi-model analysis found only the 3rd alternative model superior.http://www.sciencedirect.com/science/article/pii/S1674987116300020Alternative conceptual modelsMulti-model analysisWater budgetTravel time |
| spellingShingle | Yangxiao Zhou H.M.P.S.D. Herath Evaluation of alternative conceptual models for groundwater modelling Geoscience Frontiers Alternative conceptual models Multi-model analysis Water budget Travel time |
| title | Evaluation of alternative conceptual models for groundwater modelling |
| title_full | Evaluation of alternative conceptual models for groundwater modelling |
| title_fullStr | Evaluation of alternative conceptual models for groundwater modelling |
| title_full_unstemmed | Evaluation of alternative conceptual models for groundwater modelling |
| title_short | Evaluation of alternative conceptual models for groundwater modelling |
| title_sort | evaluation of alternative conceptual models for groundwater modelling |
| topic | Alternative conceptual models Multi-model analysis Water budget Travel time |
| url | http://www.sciencedirect.com/science/article/pii/S1674987116300020 |
| work_keys_str_mv | AT yangxiaozhou evaluationofalternativeconceptualmodelsforgroundwatermodelling AT hmpsdherath evaluationofalternativeconceptualmodelsforgroundwatermodelling |