Stable water isotope investigation of the Barwon–Darling River system, Australia

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dc.contributor.authorHughes, CEen_AU
dc.contributor.authorStone, DJMen_AU
dc.contributor.authorGibson, JJen_AU
dc.contributor.authorMeredith, KTen_AU
dc.contributor.authorSadek, MAen_AU
dc.contributor.authorCendón, DIen_AU
dc.contributor.authorHankin, SIen_AU
dc.contributor.authorHollins, SEen_AU
dc.contributor.authorMorrison, TNen_AU
dc.date.accessioned2021-03-05T00:56:03Zen_AU
dc.date.available2021-03-05T00:56:03Zen_AU
dc.date.issued2012en_AU
dc.date.statistics2021-03-04en_AU
dc.description.abstractThe Murray-Darling Basin is the largest river basin in Australia and is host to agriculture, recreation, water supply reservoirs and significant biodiversity. Through land use practices and climate change there is the potential for significant disruption to the natural hydrological system of the basin. The Barwon-Darling River, in the upper part of the Murray Darling Basin, is primarily in a semi-arid landscape which is subject to significant evaporation, yet evaporative losses from the river remain poorly described. The stable isotope composition of groundwaters has become widely used over the past several decades as an indicator of the circumstances and geographical locations of aquifer recharge, though applications to surface water budgets have been far less extensive. A global isotopic observation initiative, the Global Network for Isotopes in Rivers (GNIR), focussed in Australia on the dryland Barwon-Darling River system. We report on drought driven isotopic signatures in the Barwon-Darling River during 2002-2007 and estimate that the amount of water lost by the Barwon-Darling River system due to evaporation may be up to 80% during severe drought periods. Runoff ratios have been commonly estimated to be between 0.1 and 1% and there is evidence of groundwater exchange with the river. This work highlights the role of stable water isotopes in assessing the amount of water lost from the river by direct evaporation, and in quantifying groundwater inputs and ungauged losses from the river. © The Authorsen_AU
dc.identifier.booktitleMonitoring isotopes in rivers: creation of the global network of isotopes in rivers (GNIR) results of a coordinated research project 2002-2006en_AU
dc.identifier.citationHughes, C. E., Stone, D. J. M., Meredith, K. T., Cendon, D. I., Hankin, S. I., Hollins, S. E., & Morrison, T. N. (2012). Stable water isotope investigation of the Barwon-Darling River system, Australia. In IAEA-TECDOC-1673, Monitoring Isotopes in Rivers: Creation of the Global Network of Isotopes in Rivers (GNIR) results of a coordinated research project 2002-2006, Vienna, International Atomic Energy Agency, (pp.97-110). Retrieved from https://www-pub.iaea.org/MTCD/Publications/PDF/TE_1673_Web.pdfen_AU
dc.identifier.govdoc9982en_AU
dc.identifier.isbn978-92-0-126810-5en_AU
dc.identifier.pagination97-110en_AU
dc.identifier.placeofpublicationVienna, Austriaen_AU
dc.identifier.urihttps://www-pub.iaea.org/MTCD/Publications/PDF/TE_1673_Web.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10488en_AU
dc.language.isoenen_AU
dc.publisherInternational Atomic Energy Agencyen_AU
dc.relation.ispartofseriesIAEA-TECDOC;1673en_AU
dc.subjectAgricultureen_AU
dc.subjectAustraliaen_AU
dc.subjectClimatic changeen_AU
dc.subjectDroughtsen_AU
dc.subjectEvaporationen_AU
dc.subjectGround wateren_AU
dc.subjectLand useen_AU
dc.subjectRiversen_AU
dc.subjectSpecies diversityen_AU
dc.subjectStable isotopesen_AU
dc.subjectWater supplyen_AU
dc.titleStable water isotope investigation of the Barwon–Darling River system, Australiaen_AU
dc.title.alternativeMonitoring isotopes in rivers: creation of the global network of isotopes in rivers (GNIR) results of a coordinated research project 2002-2006en_AU
dc.typeBook chapteren_AU
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