Estimation of Monthly Oscillations of the Groundwater Exchange in Coastal Area

Document Type : Research Article

Authors

1 MSc student, Water Engineering Department, Faculty of Water and Soil Engineering, Gorgan University of Agricultural Sciences and Natural Resources

2 Assistant Professor, Water Engineering Department, Faculty of Water and Soil Engineering, Gorgan University of Agricultural Sciences and Natural Resources

3 Associate Professor, Water Engineering Department, Faculty of Water and Soil Engineering, Gorgan University of Agricultural Sciences and Natural Resources

4 Expert of Hydrogeology, Golestan Regional Water Authority

Abstract

There is groundwater flow exchange between coastal aquifers and water bodies such as the sea, lake or gulf, in nature and this exchange can be of great importance with respect to the characteristics of the water body. The Bandar-e-Gaz coastal aquifer is located in the Gorgan Gulf region in northern Iran, and the Gorgan Gulf area has a very high ecological and environmental importance due to its specific conditions. In this study, the exchange of groundwater flow between the coastal aquifer of Bandar-e-Gaz and Gorgan gulf was simulated using the GMS mathematical model during the 24-month period. The results show that during the low flow periods, the sea water level and groundwater outflow from Bandar-e-Gaz aqufer to Gorgan gulf reach to its maximum (-26.37 m) and minimum (1331939 cubic meter per month) respectively, while in high flow periods there are reverse pattern. Moreover, consideration of time series of studied observed and estimated variables shows that the range of changes of groundwater outflow from the coastal aquifer is much higher than changes of sea water level. Based on the simulation results, it can be concluded that a hydraulic gradient under the influence of relatively limited changes of sea water level can have a completely significant effect on the change in groundwater outflow from Bandar-e-Gaz aqufer to Gorgan gulf.

Keywords

Main Subjects


[1].Chinnasamy P, Agoramoorthy G. Groundwater storage and depletion trends in Tamil Nadu State, India. Water Resources Management.2015; 29(7): 2139-2152.
[2].Rahman AS, Kamruzzama M, Jahan CS, Mazumder QH. Long-term trend analysis of water table using ‘MAKESENS’model and sustainability of groundwater resources in drought prone Barind area, NW Bangladesh. Journal of the Geological Society of India.2016; 87(2): 179-193.
[3].Moslemzadeh M, Salarizazi M, Soleymani S. Application and assessment of kriging and cokriging methods on groundwater level estimation. J Am Sci. 2011; 7(7): 34-39.
[4].Sethi LN, Kumar DN, Panda SN, Mal BC. Optimal crop planning and conjunctive use of water resources in a coastal river basin. Water resources management.2002; 16(2): 145-169.
[5].Emch PG, Yeh WW. Management model for conjunctive use of coastal surface water and ground water. Journal of Water Resources Planning and Management.1998; 124(3): 129-139.
[6].Benini L, Antonellini M, Laghi M, Mollema PN. Assessment of water resources availability and groundwater salinization in future climate and land use change scenarios: a case study from a coastal drainage basin in Italy. Water resources management.2016; 30(2): 731-745.
[7].Giambastiani BM, Colombani N, Greggio N, Antonellini M, Mastrocicco M. Coastal aquifer response to extreme storm events in Emilia‚ÄźRomagna, Italy. Hydrological Processes.2017; 31(8): 1613-1621.
[8].Guttman J, Negev I, Rubin G. Design and testing of recharge wells in a coastal aquifer: summary of field scale pilot tests. Water.2017; 9(1): 53.
[9].Liu Y, Jiao JJ, Luo X. Effects of inland water level oscillation on groundwater dynamics and land-sourced solute transport in a coastal aquifer. Coastal Engineering.2016; 114: 347-360.
[10].Mahlknecht J, Merchán D, Rosner M, Meixner A, Ledesma-Ruiz R. Assessing seawater intrusion in an arid coastal aquifer under high anthropogenic influence using major constituents, Sr and B isotopes in groundwater. Science of the Total Environment.2017; 587: 282-295.
[11].Van Camp M, Mtoni Y, Mjemah IC, Bakundukize C, Walraevens K. Investigating seawater intrusion due to groundwater pumping with schematic model simulations: The example of the Dar es Salaam coastal aquifer in Tanzania. Journal of African Earth Sciences.2014; 96: 71-78.
[12].Trabelsi N, Triki I, Hentati I, Zairi, M. Aquifer vulnerability and seawater intrusion risk using GALDIT, GQI SWI and GIS: case of a coastal aquifer in Tunisia. Environmental Earth Sciences.2016; 75(8): 669.
[13].Shi W, Lu C, Ye Y, Wu J, Li L, Luo J. Assessment of the impact of sea-level rise on steady-state seawater intrusion in a layered coastal aquifer. Journal of Hydrology.2018.
[14].Yagbasan O, Yazicigil H. Assessing the impact of climate change on Mogan and Eymir Lakes’ levels in Central Turkey. Environmental Earth Sciences.2012; 66(1): 83-96.
[15].Ferguson G, Gleeson T. Vulnerability of coastal aquifers to groundwater use and climate change. Nature Climate Change.2012; 2(5): 342.
[16].Oude Essink GHP, Van Baaren ES, De Louw PG. Effects of climate change on coastal groundwater systems: A modeling study in the Netherlands. Water Resources Research.2011; 46(10).
[17].Sefelnasr A, Sherif M. Impacts of seawater rise on seawater intrusion in the Nile Delta aquifer, Egypt. Groundwater.2014; 52(2): 264-276.
 
[18].Cable JE, Burnett WC, Chanton JP, Weatherly GL. Estimating groundwater discharge into the northeastern Gulf of Mexico using radon-222. Earth and Planetary Science Letters.1996; 144(3-4): 591-604.
[19].Michael HA, Mulligan AE, Harvey CF. Seasonal oscillations in water exchange between aquifers and the coastal ocean. Nature.2005; 436(7054): 1145.
[20].Wilson AM, Gardner LR. Tidally driven groundwater flow and solute exchange in a marsh: numerical simulations. Water Resources Research.2006; 42(1).
[21].Barlow PM, Reichard EG. Saltwater intrusion in coastal regions of North America. Hydrogeology Journal.2010; 18(1): 247-260.
[22].Zghibi A, Tarhouni J, Zouhri L. Assessment of seawater intrusion and nitrate contamination on the groundwater quality in the Korba coastal plain of
Cap-Bon (North-east of Tunisia). Journal of African Earth Sciences.2013; 87: 1-12.
[23].Salarijazi M, Abdolhosseini M, Ghorbani K, Eslamian S. Evaluation of quasi-maximum likelihood and smearing estimator to improve sediment rating curve estimation. International Journal of Hydrology Science and Technology.2016; 6.4: 359-370.
[24].Sadeghian MS, Salarijazi M, Ahmadianfar I, Heydari, M. Stage-Discharge relationship in tidal rivers for tidal flood condition. FEB-FRESENIUS ENVIRONMENTAL BULLETIN.2016; 4111.
[25].Ghorbani K, Salarijazi M, Abdolhosseini M, Eslamian S. Assessment of minimum variance unbiased estimator and beta coefficient methods to improve the accuracy of sediment rating curve estimation. International Journal of Hydrology Science and Technology.2017; 7.4: 350-363.
Volume 5, Issue 4
January 2019
Pages 1233-1240
  • Receive Date: 22 May 2018
  • Revise Date: 04 September 2018
  • Accept Date: 16 September 2018
  • First Publish Date: 22 December 2018