Bibliografias temáticas / Yarra Yarra Catchment

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Literatura científica selecionada sobre o tema "Yarra Yarra Catchment"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 1 de fevereiro de 2022

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Artigos de revistas sobre o assunto "Yarra Yarra Catchment"

Serena, M., e G. A. Williams. "Distribution and Demographic Attributes of Platypus Populations Near Melbourne." Australian Mammalogy 20, n.º 2 (1998): 313. http://dx.doi.org/10.1071/am98329.

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Information on platypus populations occurring along streams in the Melbourne region was collected by mark- release studies in the period I989-I996. In all, 256 records of animals were obtained along waterways in the Yarra River, Maribyrnong River and Dandenong Creek catchments. Ornilhorhynchus anatinus were captured at approximately one-quarter of the sites sampled by fyke nets, with animals encountered to within about 15 km of inner Melbourne. Evidence of reproduction was obtained along seven waterways in the Yarra River catchment (Badger Creek, Watts River/Graceburn Creek, Olinda Creek, Mullum Mullum Creek, Diamond Creek, Plenty River/Jacks Creek and the Yarra River itself) as well as Monbulk Creek in the Oandenong Creek catchment. The earliest date on which a juvenile was captured at any site was 24 February. Across populations, sex ratio (expressed as the number of adult or subadult females per adult male) tended to be positively correlated with population density. In all seasons, nearly all animals were found to be in moderate to good physical condition (i.e. tail fat index = 2 or 3). The three thinnest individuals encountered in this study were adult females captured in March, at least two of which were lactating. Along the Watts River and Mullum Mullum Creek, six individuals (comprising about 10% of animals captured) had one or more pieces of plastic or rubber litter caught around their neck or thorax.

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Adhikary, Sajal Kumar, Abdullah Gokhan Yilmaz e Nitin Muttil. "Optimal design of rain gauge network in the Middle Yarra River catchment, Australia". Hydrological Processes 29, n.º 11 (3 de dezembro de 2014): 2582–99. http://dx.doi.org/10.1002/hyp.10389.

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Daly, E., P. Kolotelo, C. Schang, C. A. Osborne, R. Coleman, A. Deletic e D. T. McCarthy. "Escherichia coli concentrations and loads in an urbanised catchment: The Yarra River, Australia". Journal of Hydrology 497 (agosto de 2013): 51–61. http://dx.doi.org/10.1016/j.jhydrol.2013.05.024.

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Barua, Shishutosh, A. W. M. Ng e B. J. C. Perera. "Comparative Evaluation of Drought Indexes: Case Study on the Yarra River Catchment in Australia". Journal of Water Resources Planning and Management 137, n.º 2 (março de 2011): 215–26. http://dx.doi.org/10.1061/(asce)wr.1943-5452.0000105.

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Howard, N. H. "Recreational Use Considerations of the Sugarloaf Reservoir (Melbourne, Australia)". Water Science and Technology 21, n.º 2 (1 de fevereiro de 1989): 251–54. http://dx.doi.org/10.2166/wst.1989.0059.

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Sugarloaf Reservoir, one of Melbourne's newer storages, draws an increasing proportion of its water from the unprotected and polluted lower Yarra requiring all supply to be comprehensively treated before being supplied to consumers. Because of this special situation, compared to harvesting from protected catchments, a recreational use study of the reservoir and its small natural catchment was initiated. The first phase of this study was undertaken by Dr J Forsyth of the Microbiological Diagnostic Unit, University of Melbourne which recommended that, from the public health point of view, the present nominal recreational use (passive) at Sugarloaf Reservoir could be extended to include shore based fishing, establishment of a catchment nature trail, sailing, rowing, youth club and model yacht sailing. A Phase 2 study reported on the financial, managerial aspects, etc, not addressed by Dr Forsyth, while the “implementation stage” is being currently considered in a third phase. A report on this last phase is to be submitted to the Board and Minister for Water Resources for consideration for the summer of 1988.

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Barua, Shishutosh, Nitin Muttil, A. W. M. Ng e B. J. C. Perera. "Rainfall trend and its implications for water resource management within the Yarra River catchment, Australia". Hydrological Processes 27, n.º 12 (12 de maio de 2012): 1727–38. http://dx.doi.org/10.1002/hyp.9311.

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Adhikary, Sajal Kumar, Nitin Muttil e Abdullah Gokhan Yilmaz. "Improving streamflow forecast using optimal rain gauge network-based input to artificial neural network models". Hydrology Research 49, n.º 5 (5 de dezembro de 2017): 1559–77. http://dx.doi.org/10.2166/nh.2017.108.

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Abstract Accurate streamflow forecasting is of great importance for the effective management of water resources systems. In this study, an improved streamflow forecasting approach using the optimal rain gauge network-based input to artificial neural network (ANN) models is proposed and demonstrated through a case study (the Middle Yarra River catchment in Victoria, Australia). First, the optimal rain gauge network is established based on the current rain gauge network in the catchment. Rainfall data from the optimal and current rain gauge networks together with streamflow observations are used as the input to train the ANN. Then, the best subset of significant input variables relating to streamflow at the catchment outlet is identified by the trained ANN. Finally, one-day-ahead streamflow forecasting is carried out using ANN models formulated based on the selected input variables for each rain gauge network. The results indicate that the optimal rain gauge network-based input to ANN models gives the best streamflow forecasting results for the training, validation and testing phases in terms of various performance evaluation measures. Overall, the study concludes that the proposed approach is highly effective to achieve the enhanced streamflow forecasting and could be a viable option for streamflow forecasting in other catchments.

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Jovanovic, Dusan, Rebekah Henry, Rhys Coleman, Ana Deletic e David McCarthy. "Integrated conceptual modelling of faecal contamination in an urban estuary catchment". Water Science and Technology 72, n.º 9 (15 de julho de 2015): 1472–80. http://dx.doi.org/10.2166/wst.2015.363.

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Urban stormwater is regarded as a key input of faecal contamination in receiving water bodies and therefore, a major concern for health risks associated with aquatic recreation. Wastewater leakages, cross connections and overflows, together with faeces washed from surfaces during rainfall events, are possible origins of faecal contamination which enter these water bodies through stormwater drains. This paper applies conceptual models to a case study of the Yarra River estuary to understand the relative importance of fluxes derived from an urban creek and the 219 urban stormwater pipes which drain directly to the estuary as compared with other inputs, such as the Yarra River itself. Existing hydrologic-microorganism models were used for the estimation of the inputs from riverine and urban stormwater fluxes. These predictions were applied as boundary conditions for a new, highly simplified, model which accounts for the transport and survival of faecal microorganisms in the estuary. All models were calibrated using a rich dataset, containing over 2,000 measured Escherichia coli concentrations. Mass balances from the riverine and stormwater models indicate the limited influence of urban stormwater drains on the estuary during dry weather; less than 0.05% to 10% (5th and 95th percentile; median 0.5%) of the total daily E. coli load entering the estuary was derived from urban stormwater drains. While wet weather contributions from stormwater drains could be more significant (2% to 50%; 5th and 95th percentile), the average contribution remained marginal (median 10%). Sensitivity testing of the estuarine microorganism model by switching off stormwater boundary conditions resulted in minimal model efficiency reduction; this may reflect the low average daily contribution from urban stormwater drains. While these results confirm previous studies which show that E. coli loads derived from stormwater drains are dwarfed by other inputs, it is essential to note that these results also demonstrate that some conditions reveal the opposite; high proportions from stormwater are possible when combined with low riverine inputs and high urban rainfall. Furthermore, this study focuses on the overall impacts of direct urban stormwater inputs on the faecal contamination levels within the estuary, and localized impacts would certainly require further investigation.

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Kumar Adhikary, Sajal, Nitin Muttil e Abdullah Gokhan Yilmaz. "Ordinary kriging and genetic programming for spatial estimation of rainfall in the Middle Yarra River catchment, Australia". Hydrology Research 47, n.º 6 (29 de janeiro de 2016): 1182–97. http://dx.doi.org/10.2166/nh.2016.196.

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Rainfall maps with gridded data are frequently used as an important input for many hydrological models. In this study, two kriging-based interpolation methods (i.e., ordinary kriging (OK) and kriging with genetic programming (KGP)) and a deterministic interpolation method (inverse distance weighting (IDW)) are implemented to generate gridded rainfall maps from point rainfalls. The KGP is implemented as a new kriging method in which the genetic programming-based non-parametric variogram model is used with kriging. Rainfall records from existing 19 raingauges in the Middle Yarra River catchment, Australia are used for the analysis. The performance of each method is assessed through the cross-validation test. Results indicate that the kriging-based methods clearly outperform the IDW method. Among all the kriging-based methods, OK with the spherical variogram model yields the lowest prediction error and best estimates for all months. The KGP method gives an almost identical error to that given by the OK with the spherical variogram model for most of the months and a lower prediction error than that given by OK with the exponential or Gaussian variogram model. Thus, the KGP can be used in line with traditional kriging as a viable alternative technique for spatial estimation and mapping of rainfall.

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Serena, M., J. L. Thomas, G. A. Williams e R. C. E. Officer. "Use of stream and river habitats by the platypus, Ornithorhynchus anatinus, in an urban fringe environment". Australian Journal of Zoology 46, n.º 3 (1998): 267. http://dx.doi.org/10.1071/zo98034.

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Radio-telemetry was used to monitor movements and burrow usage by O. anatinus living in the Yarra River catchment, about 20 km east-north-east of the central business district of Melbourne, Victoria. The home ranges of six adult or subadult animals were 2.9–7.3 km (mean ± s.d. = 4.6 ± 1.6 km) long, with individuals travelling up to 10.4 km (males) and 4.0 km (females) in a single overnight period. The mean home-range length of adult/subadult animals was significantly greater than that of juveniles (1.4–1.7 km, mean ± s.d. = 1.55 ± 0.2 km, n = 2). The animals utilised two drainage channels as well as 11.8 km of natural waterways, including the Yarra River (5 km), Mullum Mullum Creek (4 km) and Diamond Creek (2.8 km). Several animals travelled repeatedly below one-lane and two-lane bridges, confirming that these structures are not inherent barriers to platypus movement. In total, 57 platypus burrows were described, including 26 along the river, 29 along the creeks and 2 along drains. The horizontal distance from the water’s edge to burrow chambers was 0.4–3.7 m (mean ± s.d. = 1.5 ± 0.9 m, n = 41), with burrows found only in banks extending ≥ 0.5 m above the water. Platypus burrows occurred significantly more often than expected along undercut banks and in association with moderate-to-dense vegetation overhanging the water, and significantly less often at sites where banks had a convex profile at water level. As well, the amount of cover provided along the bank by shrubs/small trees and the ground layer of vegetation was significantly greater than expected at platypus burrows along the river. These attributes are believed to help conceal burrow entrances from predators as well as reduce burrow damage through erosion.

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Teses / dissertações sobre o assunto "Yarra Yarra Catchment"

Boggs, Dimity. "Playas of the Yarra Yarra drainage system, Western Australia". University of Western Australia. School of Earth and Geographical Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0074.

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This thesis examines playas as integrated ecosystems, through investigation of long- and short-term processes associated with playa geomorphology, hydrology and diatom ecology, in playas of the Yarra Yarra drainage system of Western Australia. This landscape approach was conducted at a range of scales and consequently revealed a level of heterogeneity not previously described in Australian playas. The key result and common thread linking the three facets of the playas investigated is the importance of hydroperiod in defining the playa environment. The morphology and distribution of playas are described and the results presented of an examination of potential mechanisms determining intra-system variability. Measurements of the physical attributes of the playas, including length, area, shape, density and orientation, were made through Geographic Information System analysis and detailed interpretation of aerial photography. Two main morphological groups are distinguished: small (<10 ha), elliptical to circular playas with a NNW-SSE orientation; and large (>30 ha), elongated playas. Regional patterns in geomorphic attributes are markedly different between the west and east sides of the system. The boundary between the two regions coincides approximately with rainfall distribution. In this respect, climate is an overarching driver of geomorphological variation but sub-catchment characteristics are also critical determinants. Littoral drift and segmentation processes that are common to coastal lagoons but not commonly described in playas were identified from visual interpretation of aerial photographs of spits, bars and cuspate shorelines. Six small playas, representing an hydrological continuum from mostly wet to mostly dry, were selected for investigation of their hydrology and diatom ecology, enabling assessment ii of the variability of hydrology, hydrochemistry and of the effects of different hydrological environments on the distribution of taxa. Hydroperiod was highly variable and central to determining playa geomorphology and biology. In the six playas it ranged from 19 to over 211 days, and filling frequency from 1 to 3 cycles between 2002 and 2004, reflecting rainfall and sub-catchment variability. Monitoring a series of nested piezometers revealed that the playas were net discharge points for ground water over the period of survey. However, small local vertical head variations indicate ground water does not discharge at the same rate across the playa surfaces and that playas may have short-lived phases of ground water recharge. Hydrochemically, the playas are typical of salt lakes in Australia. They displayed a wide range of salinity values, neutral to alkaline pH and ionic composition similar to sea water. It is postulated that the geochemical evolution of waters in the playas follows a pathway where low salinity recharge waters with dilute sea water salts progress to Na-Cl dominated brines through evaporative concentration. Surface waters showed an ionic dominance consistent with sea water with minor variations attributed to transitional phases in the geochemical evolution of the waters. Shallow ground waters showed a common and consistent pattern of ionic dominance: Na+ >Mg2+ >K+ >Ca2+ : Cl- >SO4 2- >HCO3 ->CO3 2-.

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Livros sobre o assunto "Yarra Yarra Catchment"

Hansen, Christine, e Tom Griffiths. Living with Fire. CSIRO Publishing, 2012. http://dx.doi.org/10.1071/9780643104808.

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Within the Yarra River catchment area nestles the valley of Steels Creek, a small shallow basin in the lee of Kinglake plateau and the Great Dividing Range. The escarpment walls of the range drop in a series of ridges to the valley and form the south-eastern boundary of the Kinglake National Park. The gentle undulations that flow out from the valley stretch into the productive and picturesque landscape of Victoria’s famous wine growing district, the Yarra Valley. Late on the afternoon of 7 February 2009, the day that came to be known as Black Saturday, the Kinglake plateau carried a massive conflagration down the fringing ranges into the Steels Creek community. Ten people perished and 67 dwellings were razed in the firestorm. In the wake of the fires, the devastated residents of the valley began the long task of grieving, repairing, rebuilding or moving on while redefining themselves and their community. In Living with Fire, historians Tom Griffiths and Christine Hansen trace both the history of fire in the region and the human history of the Steels Creek valley in a series of essays which examine the relationship between people and place. These essays are interspersed with four interludes compiled from material produced by the community. In the immediate aftermath of the fire many people sought to express their grief, shock, sadness and relief in artwork. Some painted or wrote poetry, while others collected the burnt remains of past treasures from which they made new objects. These expressions, supplemented by historical archives and the essays they stand beside, offer a sensory and holistic window into the community’s contemporary and historical experiences. A deeply moving book, Living with Fire brings to life the stories of one community’s experience with fire, offering a way to understand the past, and in doing so, prepare for the future.

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Trabalhos de conferências sobre o assunto "Yarra Yarra Catchment"

"Sensitivity analysis of SWAT model in the Yarra River catchment". In 20th International Congress on Modelling and Simulation (MODSIM2013). Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2013. http://dx.doi.org/10.36334/modsim.2013.h4.das.

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"Development of a SWAT model in the Yarra River catchment". In 20th International Congress on Modelling and Simulation (MODSIM2013). Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2013. http://dx.doi.org/10.36334/modsim.2013.l4.das.

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"Assessment of nutrient and sediment loads in the Yarra River Catchment". In 19th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2011. http://dx.doi.org/10.36334/modsim.2011.i5.das.

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"Effects of climate and landuse activities on water quality in the Yarra River catchment". In 20th International Congress on Modelling and Simulation (MODSIM2013). Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2013. http://dx.doi.org/10.36334/modsim.2013.l8.das.

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