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Abstract
This study describes a daily rainfall, potential evaporation and streamflow data set compiled for the important water resources region of southeast Australia, and the application of six commonly used lumped conceptual rainfall-runoff models to estimate daily runoff across the region. The daily climate data set and the daily modelled runoff are available from 1895 to 2008 at 0.05° grid resolution across the region. The modelling exercise indicates that the rainfall-runoff models can generally be calibrated to reproduce the daily observed streamflow (for 232 catchments in the high runoff generation areas), and the regionalisation results indicate that the use of optimised parameter values from a gauged catchment nearby can model runoff reasonably well in the ungauged areas. There are differences between the six models, but they are relatively small when used to describe aggregated results across large regions.
Additional information
Notes on contributors
J Vaze
Dr Jai Vaze is a Principal Research Scientist with CSIRO Land and Water in Canberra, where he leads the catchment hydrology team within the surface water hydrology research program. Jai has more than 18 years experience in the field of water resources management, inland landscape modelling, distributed hydrologic modelling, predictions in ungauged basins, hydroclimate modelling and spatial modelling. He has published more than 70 scientific papers and reports. Prior to joining CSIRO in 2009, Jai managed the catchment and climate modelling group with the New South Wales Government. He has worked on various projects that have contributed to key national initiatives, including the CSIRO Sustainable Yields projects, the eWater CRC’s River Systems project and the South Eastern Australia Climate Initiative.
F H S Chiew
Dr Francis Chiew is a Science Leader with CSIRO Land and Water in Canberra, where he leads the surface water hydrology research program. Francis is highly regarded in the areas of hydrological modelling, hydroclimatic variability and climate impact on water, where he has published more than 200 research papers. Francis leads a significant research portfolio and is active in converting research outcomes into products for the water industry. His contributions in the climate and water area have allowed policy makers to make more informed risk-based decisions on water planning and management. More recently, Francis has led various projects that contribute to key national initiatives, including the CSIRO Sustainable Yields projects and the South Eastern Australia Climate Initiative.
J M Perraud
Jean-Michel Perraud is a senior software programmer with CSIRO Land and Water in Canberra. Jean-Michel is currently working on the Catchment Water Yield Estimation Tool (CWYET) project. He has more than 10 years experience in the field of software design and development. Jean-Michel has worked on various projects that contribute to key national initiatives, including the CSIRO Sustainable Yields projects and the eWater CRC’s Source Catchments and Source Rivers projects.
N Viney
Dr Neil Viney is a Principal Research Scientist with CSIRO Land and Water. Neil leads the surface water modelling project in the Water Information Research and Development Alliance (WIRADA). Neil has more than 20 years experience in hydrological modelling and related disciplines. He joined CSIRO in 1999 after holding research positions in the University of New South Wales, Sydney, and the University of Western Australia, Perth. He took a leading role in the development of the large-scale catchment model (LASCAM), which has been applied in many parts of the world.
D Post
Dr David Post is a Senior Research Scientist with CSIRO Land and Water in Canberra. David has carried out research on most areas of the hydrologic cycle, beginning with atmospheric chemistry at the University of Newcastle, New South Wales, to oceanography at CSIRO Marine and Atmospheric Research, and onto hydrology at the Australian National University (Canberra), Oregon State University (USA) and then CSIRO Land and Water. David was the Program Leader for the CSIRO Tasmanian Sustainable Yields Project and currently he is the Program Director of the South Eastern Australian Climate Initiative (SEACI).
J Teng
Jin Teng is a Senior Research Scientist with CSIRO Land and Water in Canberra. She has over 10 years experience in the fields of hydroclimate modelling, hydrological modelling, spatial modelling, and software design and development. Jin has published more than 40 scientific papers and reports. Prior to joining CSIRO, Jin was a senior climate modeller with the New South Wales government.
B Wang
Biao Wang joined the eWater CRC in 2009. He is currently working on the Catchment Water Yield Estimation Tool (CWYET) project. Biao holds a MEng in software engineering (UTS, Australia), a PGDIT in information technology (UTS, Australia), and a BEng in environmental engineering (Zhejiang University, China). His current research interests include hydrological system modelling and simulation, evolutionary computation, complex adaptive systems, and parallel computation.
J Lerat
Julien Lerat has 10 years of expertise in surface water modelling. His first working experience in India provided him with a broad overview of the water sector and convinced him to start a career in this multi-faceted sector. Back in France, he joined a branch of the Suez-Lyonnaise des eaux group that specialised in environmental engineering consulting (Safege). There he managed projects dealing with flood risk mitigation for the benefit of French public authorities. Facing the shortcomings of existing hydrological and hydraulic modelling tools, he decided to join a research institute (Cemagref) to develop new methodologies in this field. His work has materialised with the realisation of a PhD titled “Which hydrological inputs for hydraulic models? Toward an integrated model for flood modelling”. At the same time, he has participated in international projects dealing with rainfall-runoff modelling.
M Goswami
Dr Monomoy Goswami is a civil engineer with specialisation in hydrology and professional experience in both academia and industry. Having graduated in Civil Engineering from National Institute of Technology, Silchar, India, in 1987, Monomoy earned his Masters and PhD degrees in Hydrology in 1996 and 2006, respectively, from the Department of Engineering Hydrology, National University of Ireland Galway, Ireland. Monomoy is a Member of the European Geosciences Union, American Geophysical Union, International Association of Hydrological Sciences, Institution of Engineers (Ireland) and Institution of Engineers (India). His research interests include mathematical modelling of hydrological systems (conceptual and data-driven), optimisation techniques, flood forecasting, flow estimation in ungauged basins, and hydro power planning and development.