Climate change impacts on water yields and demands in south-western Australia

McFarlane, Don; Stone, Roy; Martens, S; Thomas, Jonathan; Silberstein, Richard; Ali, Riasat; Hodgson, Geoff

doi:10.1016/j.jhydrol.2012.05.038

Cited by 79 publications

(38 citation statements)

References 10 publications

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“…McFarlane et al [7] used multiple Global Circulation Models' (GCMs') projections to simulate water yield in south-western Australia over the coming decades and found that surface water yields might decrease by 24% due to climate change. Based on the simulation results of Geomorphology Based Hydrological Model (GBHM), Ma et al [8] found that climate impact contributed about 55% to the decrease in Miyun Reservoir inflow.…”

Section: Introductionmentioning

confidence: 99%

Attribution of Runoff Change for the Xinshui River Catchment on the Loess Plateau of China in a Changing Environment

Wang

Zhang

Yang

2016

Water

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Abstract:Stream flow plays a crucial role in the environment, society, and the economy, and identifying the causes of changes in runoff is important to understanding the impact of climate change and human activity. This study examines the variation trends in recorded runoff for the Xinshui River, a tributary of the Yellow River on the Loess Plateau, and uses hydrological simulations to investigate how climate change and human activity have contributed to those trends. Results show that the recorded runoff at the Daning station on the Xinshui River declined significantly from 1955-2008 with an abrupt change occurring in 1973. The Simplified Water Balance Model (SWBM) simulates monthly discharge well with a Nash-Sutcliffe efficiency (NSE) coefficient of 78% and a relative error of volumetric fit (RE) of 0.32%. Runoff depth over the catchment in 1973-2008 fell by 25.5 mm relative to the previous period, with human activity and climate change contributing 60.6% and 39.4% of the total runoff reduction, respectively. However, the impacts induced by climate change and human activities are both tending to increase. Therefore, efforts to improve the ecology of the Loess Plateau should give sufficient attention to the impacts of climate change and human activity.

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Section: Introductionmentioning

confidence: 99%

Attribution of Runoff Change for the Xinshui River Catchment on the Loess Plateau of China in a Changing Environment

Wang

Zhang

Yang

2016

Water

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“…With the drying climate and increased water demand there is likely to be increased pressure on this diminishing resource by 2030(McFarlane et al, 2012. The reliability of water supply is an issue that water utilities are acutely aware of.…”

Section: Introductionmentioning

confidence: 99%

Drivers of an urban community’s acceptance of a large desalination scheme for drinking water

Gibson

Tapsuwan

Walker

et al. 2015

Journal of Hydrology

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s u m m a r yChanging climates and growing populations have prompted policy makers to shift to more climate resilient, technology-driven water sources, such as seawater desalination. Desalination is a prominent water resource in the Middle East but countries in other parts of the world with similar scarcity issues and good access to sea water, such as Australia, have been comparatively slow to adopt it. This paper explores attitudes to desalination in Perth, Western Australia, and the factors that influence its acceptance. We compared individuals' acceptance of desalination over two time periods by using identical surveys administered in 2007 and 2012. We then examined the attitudinal factors -attitudes towards desalination and attitudes towards the environment -that influence acceptance. Acceptance of desalination was reasonably high and stable at both times (74% and 73% in 2007 and 2012 respectively). We found that respondents' attitudes to perceived outcomes and benefits, fairness, environmental obligation and risk were important predictors of their acceptance of desalination in both surveys. However the weight given to these aspects varied over time. The findings show that there is still mixed community sentiment towards desalination, which helps to explain why acceptance has not increased since desalination was introduced in 2006.

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“…The latter is often used to project future change while the former is usually used to analyze the sensitivity of hydrology to changes in climate. McFarlane et al (2012) used GCM projections to simulate water yield in south-western Australia over the coming decades and found surface water yields may decrease by about 24 % with a large range of −4 to-49 % due to uncertainty of projected climate scenarios. Jung and Chang (2011) investigated future runoff trends for the Willamette River basin of the USA and found that projected runoffs are highly dependent on the selected climate scenarios.…”

Section: Introductionmentioning

confidence: 99%

Simulating the hydrological responses to climate change of the Xiang River basin, China

Wang

Zhang

Pagano

et al. 2015

Theor Appl Climatol

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The responses of stream flow, actual evaporation, and soil moisture to climate change in six catchments within Xiang River basin, China, are investigated using Variable Infiltration Capacity (VIC) model. Results show that stream flows are highly correlated to precipitation while weakly correlated to temperature, which indicates precipitation governs variability of stream flow for these catchments. The VIC model performs well at simulating monthly discharge, with Nash Sutcliffe Efficiencies (NSEs) exceeding 70 % and relative errors (REs) of the volumetric fit falling in the range of ±10 % for both calibration and validation periods. The model can simulate seasonal cycles of soil moisture and actual evaporation reasonably well. Due to humid climate of the region, stream flows are more sensitive to changes in precipitation than to change in temperature, while soil moisture and actual evaporation tend to be relatively more affected by temperature. A 2°C rise in temperature will lead to 5.62 % (4.3-7.45 %) decrease in stream flow, 6.45 % (5.8-7.02 %) increase in actual evaporation, and 5 % (4.16-5.59 %) decrease in soil moisture. A 10 % increase in precipitation will result in 14.17 % (13.44-15.70 %), 5.22 % (4.32-5.62 %), and 4.57 % (2.90-4.96 %) increases in stream flow, actual evaporation, and soil moisture, respectively.

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Climate change impacts on water yields and demands in south-western Australia

Cited by 79 publications

References 10 publications

Attribution of Runoff Change for the Xinshui River Catchment on the Loess Plateau of China in a Changing Environment

Attribution of Runoff Change for the Xinshui River Catchment on the Loess Plateau of China in a Changing Environment

Drivers of an urban community’s acceptance of a large desalination scheme for drinking water

Simulating the hydrological responses to climate change of the Xiang River basin, China

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