Numerical simulation of seawater intrusion to coastal aquifers and brine water/freshwater interaction in south coast of Laizhou Bay, China
Abstract
Seawater intrusion and brine water/freshwater interaction have significantly affected agriculture, industry and public water supply at Laizhou Bay, Shandong Province, China. A two-dimensional SEAWAT model is developed to simulate the seawater intrusion to coastal aquifers and brine water/fresh water interaction in the south of Laizhou Bay. This model is applied to predict the seawater intrusion and brine water/freshwater interface development in the coming years. The model profile is perpendicular to the coastal line with two interfaces, freshwater-saline water interface near the shore and inland brine water-saline water-seawater interface. The hydrogeological parameters in the SEAWAT-2000 model are calibrated by the head and salinity measurements. The precipitation infiltration coefficient, boundary conditions and thicknesses of aquifers are studied in a sensitivity analysis. The predicted results indicate that equivalent freshwater head in shallow freshwater-saline water area will decline 2.0 m by the end of the forecasting period, caused by groundwater over-pumping for farmland irrigation. The groundwater head in the brine-saline water area will also decrease about 1.8 m by the end of forecasting period, caused by excessive brine mining. Salinity decreases below 105 g/L in the brine area, but increases in other areas and contaminates fresh groundwater resources.
- Authors:
-
[3];
- China Univ. of Geosciences, Beijing (China). School of Water Resources and Environment. MOE Key Lab. of Groundwater Circulation and Environmental Evolution
- China Univ. of Geosciences, Beijing (China). School of Water Resources and Environment. MOE Key Lab. of Groundwater Circulation and Environmental Evolution; Jinan Univ., Guangzhou (China). Inst. of Groundwater and Earth Sciences
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Climate and Ecosystem Sciences Division
- Tianjin Center of China Geological Survey (China)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE; National Natural Science Foundation of China (NSFC); National Key Research Project (China)
- OSTI Identifier:
- 1477353
- Grant/Contract Number:
- AC02-05CH11231; 41530316; 2016YFC0402805
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Contaminant Hydrology
- Additional Journal Information:
- Journal Volume: 215; Journal ID: ISSN 0169-7722
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; seawater intrusion; numerical simulation; brine water and freshwater interaction; density dependent interface
Citation Formats
Chang, Yawen, Hu, Bill X., Xu, Zexuan, Li, Xue, Tong, Juxiu, Chen, Lin, Zhang, Hanxiong, Miao, Jinjie, Liu, Hongwei, and Ma, Zhen. Numerical simulation of seawater intrusion to coastal aquifers and brine water/freshwater interaction in south coast of Laizhou Bay, China. United States: N. p., 2018.
Web. doi:10.1016/j.jconhyd.2018.06.002.
Chang, Yawen, Hu, Bill X., Xu, Zexuan, Li, Xue, Tong, Juxiu, Chen, Lin, Zhang, Hanxiong, Miao, Jinjie, Liu, Hongwei, & Ma, Zhen. Numerical simulation of seawater intrusion to coastal aquifers and brine water/freshwater interaction in south coast of Laizhou Bay, China. United States. https://doi.org/10.1016/j.jconhyd.2018.06.002
Chang, Yawen, Hu, Bill X., Xu, Zexuan, Li, Xue, Tong, Juxiu, Chen, Lin, Zhang, Hanxiong, Miao, Jinjie, Liu, Hongwei, and Ma, Zhen. Mon .
"Numerical simulation of seawater intrusion to coastal aquifers and brine water/freshwater interaction in south coast of Laizhou Bay, China". United States. https://doi.org/10.1016/j.jconhyd.2018.06.002. https://www.osti.gov/servlets/purl/1477353.
@article{osti_1477353,
title = {Numerical simulation of seawater intrusion to coastal aquifers and brine water/freshwater interaction in south coast of Laizhou Bay, China},
author = {Chang, Yawen and Hu, Bill X. and Xu, Zexuan and Li, Xue and Tong, Juxiu and Chen, Lin and Zhang, Hanxiong and Miao, Jinjie and Liu, Hongwei and Ma, Zhen},
abstractNote = {Seawater intrusion and brine water/freshwater interaction have significantly affected agriculture, industry and public water supply at Laizhou Bay, Shandong Province, China. A two-dimensional SEAWAT model is developed to simulate the seawater intrusion to coastal aquifers and brine water/fresh water interaction in the south of Laizhou Bay. This model is applied to predict the seawater intrusion and brine water/freshwater interface development in the coming years. The model profile is perpendicular to the coastal line with two interfaces, freshwater-saline water interface near the shore and inland brine water-saline water-seawater interface. The hydrogeological parameters in the SEAWAT-2000 model are calibrated by the head and salinity measurements. The precipitation infiltration coefficient, boundary conditions and thicknesses of aquifers are studied in a sensitivity analysis. The predicted results indicate that equivalent freshwater head in shallow freshwater-saline water area will decline 2.0 m by the end of the forecasting period, caused by groundwater over-pumping for farmland irrigation. The groundwater head in the brine-saline water area will also decrease about 1.8 m by the end of forecasting period, caused by excessive brine mining. Salinity decreases below 105 g/L in the brine area, but increases in other areas and contaminates fresh groundwater resources.},
doi = {10.1016/j.jconhyd.2018.06.002},
journal = {Journal of Contaminant Hydrology},
number = ,
volume = 215,
place = {United States},
year = {Mon Jun 18 00:00:00 EDT 2018},
month = {Mon Jun 18 00:00:00 EDT 2018}
}
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