The theme for HWRS 2021, Digital Water, covers a range of topics relevant to practicing water engineers, students, academics, researchers and industry specialist providers. Abstracts for HWRS 2021 can be submitted under any of the following sub-themes. 


The sub themes for HWRS 2021 are:

Floods-risk assessment and forecasting

Design flood estimation and risk assessment, Floodplain modelling and management, Real-time flood forecasting and warning, Regional flood studies, Prediction in ungauged catchments, Management of uncertainty, Flood risk management through land use planning, Using paleo-hydrology to inform flood risk.

Low flow and drought

Drought forecasting and mapping, Low flow studies, Quantifying long-term drought risk, Minimum flows to protect the environment, Water quality and drought.

Digital hydrology

Hydrologic monitoring and data management, Advances in simulation modelling, Artificial neural networks, evolutionary methods and cellular automata, Applications of GPS, remote sensing, GIS digital terrain modelling in hydrology and water resources, Internet based applications.

Healthy environments and water quality

Advances in environmental flow assessment techniques, Environmental flow release trials and policy, Watershed assessment, monitoring and management, Water quality and health of aquatic systems, Fate and transport of pollutants, Evaluation of environmental flow programs

Informing policy and operational decisions

Water conservation in the agricultural, industrial and municipal sectors, Land use change impacts, New technologies and methods for water conservation, Alternate water sources and Irrigation water management, Challenges in the use of alternative water sources, Sustainability issues, challenges, risks and uncertainties, Water governance, socio-economic framework and policy, Understanding and forecasting water use behaviour, Water stewardship, standards and accreditation, Multicriteria decision making and applications in water systems analysis, Decision support systems.

Integrated water resource management

Water security-conflict management, Water trading, Sustainability and modelling technology, Decision Support Systems, Water supply and demand management, Bushfire response


Groundwater contamination and protection, Integrated coastal aquifer management, Water harvesting and groundwater recharge, Transport & fate of pollutants,  Improving water quality – salinity/sodicity management,  Advances in groundwater modelling.

Urban water management

Liveability - meeting the basic social, environmental and economic needs of people, Water sensitive urban design, Water and urban microclimate management, Urban hydrology and flash flooding.

Responding to climate change

Impacts of global and regional climate change and adaption, Projections of changes to rainfall intensity, Quantifying and managing changes to flood risk, Sea level rise and coastal processes

Water management for infrastructure and mining

Modelling and managing river diversions, water supply for mining and processing, managing discharge of contaminated water, pumps and pipelines, flood risk management for dams and other infrastructure.