Numerical investigation of seawater intrusion at Gooburrum, Bundaberg, Queensland, Australia
文献类型：期刊论文
| 作者 | Zhang, Q; Volker, RE; Lockington, DA |
| 刊名 | HYDROGEOLOGY JOURNAL
 |
| 出版日期 | 2004 |
| 卷号 | 12期号:6页码:674-687 |
| 关键词 | Seawater Intrusion Boundary Condition Steady-state Solution Numerical Modelling Coastal Aquifers |
| ISSN号 | 1431-2174 |
| 英文摘要 | Seawater intrusion in coastal agricultural areas due to groundwater abstraction is a major environmental problem along the northeastern coast of Australia. Management options are being explored using numerical modelling, however, questions remain concerning the appropriate level of sophistication in models, choice of seaward boundary conditions, and how to accommodate heterogeneity and data uncertainty. The choice of seaward boundary condition is important since it affects the amount of salt transported into the aquifers and forms the focus of the present study. The impact of this boundary condition is illustrated for the seawater-intrusion problem in the Gooburrum aquifers, which occur within Tertiary sedimentary strata. A two-dimensional variable-density groundwater and solute-transport model was constructed using the computer code 2DFEMFAT (Cheng et al. 1998). The code was tested against an experiment for a steady-state freshwater-saltwater interface and against the Elder (Elder 1967) free-convection problem. Numerical simulations show that the imposition of the commonly-used equivalent hydrostatic freshwater heads, combined with a constant salt concentration at the seaward boundary, results in overestimated seawater intrusion in the lower Gooburrum aquifer. Since the imposition of this boundary condition allows water flow across the boundary, which subsequently takes salt into the aquifer, a careful check is essential to estimate whether too much mass of salt is introduced. |
| 公开日期 | 2012-03-06 |
| 源URL | [http://159.226.73.51/handle/332005/2687]  |
| 专题 | 南京地理与湖泊研究所_湖泊室 |
| 推荐引用方式 GB/T 7714 | Zhang, Q,Volker, RE,Lockington, DA. Numerical investigation of seawater intrusion at Gooburrum, Bundaberg, Queensland, Australia[J]. HYDROGEOLOGY JOURNAL,2004,12(6):674-687. |
| APA | Zhang, Q,Volker, RE,&Lockington, DA.(2004).Numerical investigation of seawater intrusion at Gooburrum, Bundaberg, Queensland, Australia.HYDROGEOLOGY JOURNAL,12(6),674-687. |
| MLA | Zhang, Q,et al."Numerical investigation of seawater intrusion at Gooburrum, Bundaberg, Queensland, Australia".HYDROGEOLOGY JOURNAL 12.6(2004):674-687. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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