International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage



(7961) Probable maximum flood, or Maximum possible flood
1 - The largest momentary discharge believed to be possible from a consideration of meteorological conditions and snow cover on the watershed. It presupposes simultaneous occurrence of all possible natural contingencies favourable to high floods. 2 - The maximum flood that can reasonably be expected to occur, on a given stream at a selected point, with a known frequency during a designated period or during an infinite period, assuming complete coincidence of all factors that would produce the heaviest rainfall and maximum runoff. 3 - The most severe flood that is considered reasonably possible at a location as a result of meteorologic and hydraulic conditions.

Related items you may like

Irrigation

Dictionary - Flood Irrigation Terms

Sign up for newsletter

Follow us