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The effects of climate change on ecologically relevant flow regimes: A comparative study between Upper Murrumbidgee and Goulburn Broken catchments

Dyer, Fiona; Hasan, Md Masud; El Sawah, Sondoss; Croke, Barry; Harrison, Evan; Jakeman, Anthony

Description

The management of freshwater ecosystems is usually targeted through the regulation of water quantity (limiting diversions and providing environmental flows) and regulation of water quality (setting limits or targets for constituent concentrations). Climate change is likely to affect water quantity and quality in multiple ways and the future management of freshwater ecosystems requires predictions of plausible future conditions. We use a suite of ecologically-relevant hydrological indicators to...[Show more]

dc.contributor.authorDyer, Fiona
dc.contributor.authorHasan, Md Masud
dc.contributor.authorEl Sawah, Sondoss
dc.contributor.authorCroke, Barry
dc.contributor.authorHarrison, Evan
dc.contributor.authorJakeman, Anthony
dc.coverage.spatialAdelaide Australia
dc.date.accessioned2018-11-30T01:19:46Z
dc.date.available2018-11-30T01:19:46Z
dc.date.createdDecember 1-6 2013
dc.identifier.isbn9780987214331
dc.identifier.urihttp://hdl.handle.net/1885/154183
dc.description.abstractThe management of freshwater ecosystems is usually targeted through the regulation of water quantity (limiting diversions and providing environmental flows) and regulation of water quality (setting limits or targets for constituent concentrations). Climate change is likely to affect water quantity and quality in multiple ways and the future management of freshwater ecosystems requires predictions of plausible future conditions. We use a suite of ecologically-relevant hydrological indicators to determine the significance of projected climate-driven hydrological changes in the Upper Murrumbidgee River Catchment in south eastern Australia in relation to river regulation. We also determine the possible water quality changes (in relation to guidelines for aquatic ecosystem protection) associated with the climate change projections to identify the combined effects of hydrological and water quality changes. The results of this study suggest that river regulation has resulted in greater changes to ecologically-relevant streamflow characteristics than climate change scenarios that involve a 1 and 2 C temperature rise in the Upper Murrumbidgee River Catchment. In contrast to the projected hydrological changes, Bayesian Network modelling suggests very small changes to violations of water quality thresholds designed to protect aquatic ecosystems as a result of climate change. By identifying key components of the flow and water quality regimes that may be affected by climate change, we are able to provide managers with information that assists in developing adaptation initiatives.
dc.format.mimetypeapplication/pdf
dc.publisherModelling and Simulation Society of Australia and New Zealand Inc.
dc.relation.ispartofseriesInternational Congress on Modelling and Simulation MODSIM 2013
dc.sourceMODSIM2013, 20th International Congress on Modelling and Simulation
dc.source.urihttp://www.mssanz.org.au/modsim2013/
dc.titleThe effects of climate change on ecologically relevant flow regimes: A comparative study between Upper Murrumbidgee and Goulburn Broken catchments
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2013
local.identifier.absfor050209 - Natural Resource Management
local.identifier.ariespublicationu4279067xPUB1048
local.type.statusPublished Version
local.contributor.affiliationDyer, Fiona, University of Canberra
local.contributor.affiliationHasan, Md Masud, College of Science, ANU
local.contributor.affiliationEl Sawah, Sondoss, College of Science, ANU
local.contributor.affiliationCroke, Barry, College of Science, ANU
local.contributor.affiliationHarrison, Evan, University of Canberra
local.contributor.affiliationJakeman, Anthony , College of Science, ANU
local.identifier.doi10.1007/s00477-013-0744-8
local.identifier.absseo960307 - Effects of Climate Change and Variability on Australia (excl. Social Impacts)
dc.date.updated2018-11-29T08:22:23Z
local.identifier.scopusID2-s2.0-84889099426
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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