All A C D E F H L M P R S T V W X
Term Definition
Hazard

A source of potential harm or a situation with a potential to cause loss. In relation to this study the hazard is flooding which has the potential to cause damage to the community.
Definitions of high and low hazard categories are provided in Appendix L of the Floodplain Development Manual (2005).

Historical Flood

A flood which has actually occurred.

Hydraulics

Term given to the study of water flow in waterways; in particular, the evaluation of flow parameters such as water level and velocity.

Hydrograph

A graph which shows how the discharge or stage/flood level at any particular location varies with time during a flood.

Hydrology

Term given to the study of the rainfall and runoff process; in particular, the evaluation of peak flows, flow volumes and the derivation of hydrographs for a range of floods.

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