A combined hydrodynamic and mixing model approach to quantify small saline groundwater input into rivers

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dc.contributor.authorMorrison, TNen_AU
dc.contributor.authorRayburg, Sen_AU
dc.contributor.authorHughes, CEen_AU
dc.date.accessioned2021-04-20T05:53:48Zen_AU
dc.date.available2021-04-20T05:53:48Zen_AU
dc.date.issued2011-07-06en_AU
dc.date.statistics2021-03-05en_AU
dc.description.abstractThe flow of groundwater into a stream is difficult to quantify. Several techniques exist, however they all have limitations with both practicality and accuracy being difficult to achieve. This study develops a method that is accurate, within the limits of input data, and practical for use in areas where groundwater inputs into rivers have a detectable level of some tracer (in this case salt). The study is undertaken on the Darling River in northwestern New South Wales, Australia. This study used a one-dimensional hydro-dynamic model (MIKE 11) of the river with the coupled advection-dispersion module to model the transport of salinity concentrations. Using a simple mixing model, a time series of saline groundwater discharge was generated and input into the hydrodynamic model. The resulting saline-groundwater discharge hydrograph agrees with conceptual understanding of groundwater-surface water processes and reasonably approximates the actual measured EC values in the river.en_AU
dc.identifier.citationMorrison, T. N., Rayburg, S. C., & Hughes, C. E. (2011). A combined hydrodynamic and mixing model approach to quantify small saline groundwater input into rivers. Paper presented to the 2011 International Union of Geodesy and Geophysics (IUGG) General Assembly, Earth on the Edge: Science for a Sustainable Planet, 28 June - 7 July 2011, Melbourne, Australia. Retrieved from http://iugg.org/archive/iugg2011/tourhosts.com.au/live/iugg2011/pdf/IUGG2011_FinalEntireProgram.6June.pdfen_AU
dc.identifier.conferenceenddate7 July 2011en_AU
dc.identifier.conferencename2011 International Union of Geodesy and Geophysics (IUGG) General Assembly, Earth on the Edge: Science for a Sustainable Planeten_AU
dc.identifier.conferenceplaceMelbourne, Australiaen_AU
dc.identifier.conferencestartdate28 June 2011en_AU
dc.identifier.urihttp://iugg.org/archive/iugg2011/tourhosts.com.au/live/iugg2011/pdf/IUGG2011_FinalEntireProgram.6June.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10677en_AU
dc.language.isoenen_AU
dc.publisherInternational Union of Geodesy and Geophysicsen_AU
dc.subjectGround wateren_AU
dc.subjectRiversen_AU
dc.subjectNew South Walesen_AU
dc.subjectAustraliaen_AU
dc.subjectSaltsen_AU
dc.subjectSalinityen_AU
dc.titleA combined hydrodynamic and mixing model approach to quantify small saline groundwater input into riversen_AU
dc.typeConference Presentationen_AU
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