Theme and Sub Themes

The theme for HWRS 2021, Digital Water, covers a range of topics relevant to practicing water engineers, students, academics, researchers and industry specialist providers. HWRS 2021 has various sub themes which abstracts can be submitted under. Below each sub theme is a list of topics relevant to that sub theme.

Sub Themes

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

Hydroinformatics and simulation modelling

  • 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 & 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 resources 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