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flood frequency

Influences on flood frequency distributions in Irish river catchments

Influences on flood frequency distributions in Irish river catchments

... estimate flood quan- tiles from single site flood frequency ...in flood frequency analysis is relatively simple (Phien, 1987) and is associated with lower standard errors for parameter ...

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Process based flood frequency analysis in an agricultural  watershed exhibiting nonstationary flood seasonality

Process based flood frequency analysis in an agricultural watershed exhibiting nonstationary flood seasonality

... “present-day” flood quantile es- timates that reflect the nonstationarities in rainfall and water- shed ...current flood frequency due to their inabil- ity to represent recent shifts in flood ...

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Flood frequency analysis supported by the largest historical flood

Flood frequency analysis supported by the largest historical flood

... historical flood magnitudes was investi- gated by Hosking and Wallis via the maximum likelihood (ML) as mentioned as early as 1986a, ...in flood frequency analysis (MacDonald, 2013; Payrastre et ...

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Regional Distribution of Frequency Fitted for East Java using Regional Flood Frequency Analysis

Regional Distribution of Frequency Fitted for East Java using Regional Flood Frequency Analysis

... hydrology. Ward’s method is most frequently used (Lin and Chen, 2006) and recommended by (Hosking and Wallis, 1997). Usually the process of delineating is based on physiographic characteristics such as catchment area, ...

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Reassessing flood frequency for the River Trent through the inclusion of historical flood information since AD 1320

Reassessing flood frequency for the River Trent through the inclusion of historical flood information since AD 1320

... within flood frequency ...with flood levels/heights at Nottingham, Table 2 contains all listed floods within the FSR (IH, 1975) at Trent Bridge, based on stageboard readings (1884-1969, excluding ...

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Flood Frequency Analysis of Otamiri River Catchment Area Using Gumbels Distribution Method.

Flood Frequency Analysis of Otamiri River Catchment Area Using Gumbels Distribution Method.

... design flood for the design of a hydraulic structure, previous floods within the catchment are analyzed and a flood is obtained that will serve as the design flood this procedure is considered as ...

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Development of Regional Flood Frequency Relationship for Narmada Basin using Index Flood Procedure

Development of Regional Flood Frequency Relationship for Narmada Basin using Index Flood Procedure

... “Regional Flood Frequency Approach” provides reasonable estimates of expected floods In order to have consistent approach for a region, it is necessary to develop standard procedures and guidelines for ...

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Investigation of attributes for identifying homogeneous flood regions for regional flood frequency analysis in Canada

Investigation of attributes for identifying homogeneous flood regions for regional flood frequency analysis in Canada

... homogeneous flood regions is essential for regional flood frequency ...selecting flood-related attributes to reflect flood generating mechanisms is required to discriminate flood ...

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Review of applied statistical methods for flood frequency analysis in Europe

Review of applied statistical methods for flood frequency analysis in Europe

... in flood discharges in recent ...increased flood peaks in northeast France and increasing runoff in the Alps, Renard, 2006; in the magnitude of annual peaks in alpine basins in Switzerland, Castellarin and ...

180

Flood frequency analysis of historical flood data under stationary and non stationary modelling

Flood frequency analysis of historical flood data under stationary and non stationary modelling

... reliable flood return ...for flood frequency analysis brings in the ques- tion of flood stationarity, since climatic and land-use condi- tions can affect the relevance of past flooding as a ...

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Flood frequency analysis using synthetic samples

Flood frequency analysis using synthetic samples

... Flood frequency analysis (FFA) is the basis for plan- ning and designing bridges, culverts and flood control structures (Chow et al., 1998). The maximum capac- ity of these structures is defined by ...

11

A multi level approach to flood frequency regionalisation

A multi level approach to flood frequency regionalisation

... maximum flood series by the general extreme value distribution, GEV, for increasingly high negative values of its shape ...underlying flood frequency distribution and alternative methods must be used ...

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Influences on flood frequency distributions in Irish river catchments

Influences on flood frequency distributions in Irish river catchments

... on flood frequency distributions in Irish ...timating flood quantiles in a single site flood frequency anal- ...influence flood frequency ...these flood ...

14

Decreasing uncertainty in flood frequency analyses by including historic flood events in an efficient bootstrap approach

Decreasing uncertainty in flood frequency analyses by including historic flood events in an efficient bootstrap approach

... historic flood information in flood safety ...a flood frequency analysis remains; only the data set of measured discharges is extended with the use of a bootstrap ...on flood ...

14

Reassessing flood frequency for the Sussex Ouse, Lewes: the inclusion of historical flood information since AD1650

Reassessing flood frequency for the Sussex Ouse, Lewes: the inclusion of historical flood information since AD1650

... ous events (Macdonald and Black, 2010). Where peak water levels or heights have been recorded, these should be crit- ically assessed, preferably with conversion to a discharge where possible. Undertaking historical ...

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Threshold effects in catchment storm response and the occurrence and magnitude of flood events: implications for flood frequency

Threshold effects in catchment storm response and the occurrence and magnitude of flood events: implications for flood frequency

... the flood frequency ...characterise flood frequency response, under thresholds, in a general ...on flood frequency – the results need to be interpreted in this ...derived ...

14

Flood frequency analysis using PL-moments approach

Flood frequency analysis using PL-moments approach

... in flood frequency analysis revolved around the idea of probability weighted moments (PWMs) introduced by Greenwood et ...maximum flood series have shown that L-moments provide simple and reasonably ...

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Flood Frequency Analysis of the Par River : Western India

Flood Frequency Analysis of the Par River : Western India

... large flood (Qlf) and actually observed maximum annual peak discharge ...the frequency distribution is possibly the best way in determining how fine an individual distribution fits the AMS dataset or which ...

5

Causes of increased flood frequency in central Europe in the 19th century

Causes of increased flood frequency in central Europe in the 19th century

... Flood frequency in central Europe exhibits multi-decadal changes, which has been demonstrated based on histori- cal ...increased flood frequency in Switzerland in the 19th century as well as ...

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Influences on flood frequency distribution in Irish catchments

Influences on flood frequency distribution in Irish catchments

... predicted flood quantiles at high return ...100-year flood quantile of around 35% and 25% ...regional flood frequency estimation approaches where a single regional parent frequency ...

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