Impacts of precipitation and temperature changes on annual streamflow in the Murray-Darling Basin

Jingjie Yu, Guobin Fu*, Wenju Cai, Tim Cowan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The relationship between the interannual changes in streamflow, precipitation and temperature of the Murray-Darling basin is investigated by using a two-parameter climate elasticity of streamflow approach. The non-linear relationship between streamflow and both precipitation and temperature indicates a greater streamflow sensitivity to precipitation than to temperature but a more significant impact of temperature change on streamflow than previously reported. The physical mechanisms producing high streamflow sensitivity to temperature change are not well understood, but may relate to concurrent changes in sub-annual precipitation characteristics such as seasonality, spatial distribution and intensity. Thus these characteristics need to be assessed and accounted for when attempting to project how streamflow, and hence water availability, may change in a future warmer world.

Original languageEnglish
Article number923076835
Pages (from-to)313-323
Number of pages11
JournalWater International
Volume35
Issue number3
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • ArcGIS Geostatistical Analyst
  • climate change
  • climate elasticity of streamflow
  • Murray-Darling basin
  • uncertainties
  • water availability
  • CLIMATE-CHANGE
  • YELLOW-RIVER
  • VARIABILITY
  • AUSTRALIA
  • ELASTICITY
  • TRENDS

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