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results found

The impact of urbanisation and stormwater management practices on water balances and nutrient pathways in areas of high groundwater: a review of recent literature

The need to understand the impact of urbanisation and changing land use on water and solute mass balances in the groundwater underlying urban areas has been increasingly recognised over the past 25 years. Groundwater resources are now included, for example,…
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  • Date Published: 6th Nov 2018

Determining the extent of groundwater interference on the performance of infiltration trenches

Abstract Infiltration trenches are widely used in stormwater management, but their capacity decreases when installed in areas with shallow groundwater where infiltration is limited by groundwater drainage. Here the hydrological performance of single infiltration trenches in areas with shallow water…
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  • Date Published: 1st Oct 2015

Modelling the impact of retention–detention units on sewer surcharge and peak and annual runoff reduction

Abstract Stormwater management using water sensitive urban design is expected to be part of future drainage systems. This paper aims to model the combination of local retention units, such as soakaways, with subsurface detention units. Soakaways are employed to reduce…
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  • Date Published: 1st Mar 2015

An exploration of temperature metrics for further developing the heat-health weather warning system in Hong Kong

Abstract Background. The current weather warning system aims to reduce mortality from heat and cold stress but still has room to be improved in terms of incorporating other temperature metrics. The aim of this study is to determine how extreme…
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  • Date Published: 1st Jan 2013

Assessing practical measures to reduce urban heat: Green and cool roofs

Abstract As cities continue to grow and develop under climate change, identifying and assessing practical approaches to mitigate high urban temperatures is critical to help provide thermally comfortable, attractive and sustainable urban environments. Green and cool roofs are commonly reported…
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  • Date Published: 1st Dec 2013

Can a spatial index of heat-related vulnerability predict emergency service demand in Australian capital cities?

Abstract Purpose – The purpose of this paper is to demonstrate a spatial model of population vulnerability (VI) capable of identifying areas of high emergency service demand (ESD) during extreme heat events (EHE). Design/methodology/approach – An index of population vulnerability…
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  • Date Published: 1st Jan 2014

Effect of hydrological variability on the performance of stormwater constructed wetlands: Assessment of the gaps in current modelling approaches

Abstract In order to design stormwater constructed wetlands (CW) for the improved efficiency in terms of nutrient reduction and flood attenuation, designers seek assistance from numerical models to justify different criteria. While there is a wide range of models based on…
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  • Date Published: 29th Aug 2016

Will it rise or will it fall? Managing the complex effects of urbanization on base flow

Abstract Sustaining natural levels of base flow is critical to maintaining ecological function as stream catchments are urbanized. Stream base flow responds variably to urbanization. Base flow or water tables rise in some locations, fall in others, or remain constant.…
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  • Date Published: 1st Mar 2016

Water retention by raingardens: implications for local-scale soil moisture and water fluxes

Abstract A key feature of biofiltration systems, or 'raingardens', is the modification of the local water balance through the enhancement of the infiltration and evapotranspiration fluxes. Thus, widespread implementation of raingardens has the potential to bring the catchment water balance…
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  • Date Published: 1st Feb 2012

Another reason urban streams are stuffed: geomorphic history, challenges and opportunities

Abstract Urbanisation influences a range of factors related to stream health, including the hydrologic regime and water quality. There is also a significant, but lesser known, impact on the physical form and functioning of stream channels. Most urban geomorphic research…
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  • Date Published: 1st Feb 2012

Setting objectives for hydrologic restoration: from site-scale to catchment-scale

Abstract The protection and eventual restoration of natural ecological functions and values in urban streams requires approaches to stormwater management that restore natural hydrologic processes at small scales, with the ultimate goal of returning catchment-scale flow-regimes towards their predevelopment behaviour.…
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  • Date Published: 1st Jun 2013

Interactive effects of urban stormwater drainage, land clearance, and flow regime on stream macroinvertebrate assemblages across a large metropolitan region

Abstract Urban impacts on streams are mediated by alteration of land cover and subsurface drainage. Understanding interactions of these 2 effects is critical for urban land and water management. We used boosted regression trees to analyze relationships between environmental predictors,…
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  • Date Published: 1st Mar 2016

Improving urban stream condition by redirecting sediments: A review of associated contaminants

Abstract It is well known that established urban catchments often result in increased flow to receiving streams, but they can also lead to reduction in coarse-grained sediment to receiving streams. The resulting loss of coarse-grained sediments (e.g. sands, gravels etc.)…
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  • Date Published: 1st Jul 2014

Urban hydrogeomorphology and the urban stream syndrome: Treating the symptoms and causes of geomorphic change

Abstract The urban stream syndrome is an almost universal physical and ecological response of streams to catchment urbanization. Altered channel geomorphology is a primary symptom that includes channel deepening, widening and instability. While the common approach is to treat the…
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  • Date Published: 7th Oct 2015

Understanding, management and modelling of urban hydrology and its consequences for receiving waters: A state of the art

Abstract Urban hydrology has evolved to improve the way urban runoff is managed for flood protection, public health and environmental protection. There have been significant recent advances in the measurement and prediction of urban rainfall, with technologies such as radar…
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  • Date Published: 1st Jan 2013

Application of a space-time stochastic model for downscaling future rainfall projections

Abstract A space-time statistical downscaling model, based on current NWP techniques, is being developed at Monash University in collaboration with Bureau of Meteorology. This model, in combination with regional climate models, will provide high-resolution projections of the future rainfall over…
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  • Date Published: 1st Nov 2012

Rainfall changes over Southwestern Australia and their relationship to the Southern Annular Mode and ENSO

Abstract Since the 1970s, winter rainfall over coastal southwestern Australia (SWA) has decreased by 10%–20%, while summer rainfall has been increased by 40%–50% in the semiarid inland area. In this paper, a K-means algorithm is used to cluster rainfall patterns…
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  • Date Published: 29th Jul 2014
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