Hydro-climatological variability in the Murray-Darling Basin

Natalie Lockart*, Dmitri Kavetski, Stewart Franks

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Investigations into the recent drought in the Murray-Darling Basin have brought to light confusion surrounding the cause and effect of temperatures, potential evaporation and actual evaporation. In this study, a simple coupled land surface-planetary boundary layer model is used to illustrate the role of soil moisture in controlling evaporation and temperature, and to explore the interaction between potential and actual evaporation and temperatures under drought conditions. We demonstrate that increased temperatures during drought conditions are a result of the reduced soil moisture and actual evaporation. It is also shown that potential evaporation is increased under drought conditions as a result of increased atmospheric moisture demand, which is itself due to the decreased actual evaporation.

Original languageEnglish
Title of host publicationHydro-Climatology
Subtitle of host publicationVariability and Change
Pages105-111
Number of pages7
Volume344
Publication statusPublished - 25 Nov 2011
EventHydro-climatology - Variability and Change Symposium, part of the 25th International Union of Geodesy and Geophysics General Assembly, IUGG 2011 - Melbourne, VIC, Australia
Duration: 28 Jun 20117 Jul 2011

Conference

ConferenceHydro-climatology - Variability and Change Symposium, part of the 25th International Union of Geodesy and Geophysics General Assembly, IUGG 2011
CountryAustralia
CityMelbourne, VIC
Period28/06/117/07/11

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