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flood frequency

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  • flood control —   measures used to reduce the frequency and the magnitude of flooding. Two approaches:   hard engineering projects which build up banks, straighten and deepen channels, divert channels, build overflow channels or dam rivers altogether all… …   Geography glossary

  • Muddy flood — occurring in Chaumont Gistoux, Belgium A muddy flood is produced by an accumulation of runoff generated on cropland. Sediments are then detached by runoff and carried as suspended matter or bedload. Muddy runoff is more likely detected when it… …   Wikipedia

  • Cumulative frequency analysis — is the applcation of estimation theory to exceedance probability (or equivalently to its complement). The complement, the non exceedance probability concerns the frequency of occurrence of values of a phenomenon staying below a reference value.… …   Wikipedia

  • 100-year flood — For other uses, see 100 year flood (disambiguation). A one hundred year flood is calculated to be the level of flood water expected to be equaled or exceeded every 100 years on average. The 100 year flood is more accurately referred to as the 1%… …   Wikipedia

  • 1966 Flood of the River Arno in Florence — The Arno River flood of November 4, 1966 killed many people and damaged or destroyed millions of masterpieces of art and rare books in Florence. It is considered the worst flood in the city s history since 1557. With the combined effort of… …   Wikipedia

  • Outburst flood — In geomorphology, an outburst flood, which is a type of megaflood, is a high magnitude, low frequency catastrophic flood involving the sudden release of water.[1][2] During the last deglaciation, numerous glacial lake outburst floods (GLOF) were… …   Wikipedia

  • Coastal flood — Coastal flooding occurs when normally dry, low lying land is flooded by sea water.[1] The extent of coastal flooding is a function of the elevation inland flood waters penetrate which is controlled by the topography of the coastal land exposed to …   Wikipedia

  • May 8th 1995 Louisiana Flood — Contents 1 Mitigation work prompted by the flooding 2 See also 3 External links The May 8th and 9th 1995 New Orleans Flood struck the New Orleans metropolitan area, shutting down the city for two days. It was a two event phenomenon. Areas south… …   Wikipedia

  • Magnitude and frequency principle — is theory that events may be calculated on their occurrence by the possibly severity of the event. The higher the magnitude of the event, the less it is likely to occur, closely related to statistics. Less severe events are more likely to occur… …   Wikipedia

  • river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

  • hydrologic sciences — Introduction       the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology.       In its widest sense hydrology encompasses the study of the occurrence, the… …   Universalium

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