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Contains terms and definitions used in the reference book, the project and the structure of the Ontology.

Browse the glossary using this index

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Verified model

Model that has been shown to produce acceptable predictions by comparison with independent field measurements.


The state of being prone to or susceptible to harm. In this respect, we can distinguish different forms of vulnerability (e.g., social, economic, environmental and so on).



Water changed by use and discharged to a drain or sewer system

Water quality

Level of impurities or pollutants in water.

Water Sensitive Urban Design (WSUD)

An approach to integration of water cycle management into urban planning and design. It also refers to a way of working with communities to ensure the planning, design, construction and retrofitting of urbanised landscapes are more sensitive to the natural water cycle.


A natural or artificial channel along which water flows.


Area of the land surface and the associated underground aquifer(s) draining to a specific point in a river.


Structure across a channel or pipe designed such that it only allows flow over its crest.

Wet weather flow

The response of the flow in a drainage network to a rainfall event.

Wicked flood-related problems

The key problems in participatory water management which may arise due to different view points of actors (or stakeholders) involved.

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