The prediction of short-duration storm rainfall intensity maxima

Sumner, Graham

doi:10.1016/0022-1694(78)90098-7

Cited by 9 publications

(4 citation statements)

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“…The relationship between the maximum rainfall amounts registered in time intervals of different durations for the same rainfall event is very important in certain applications, as the planning of the sewer network of a city or the design of civil engineering works (Sumner, 1978;Eicher, 1991), as well as providing information about the fine structure and the spatial and temporal organization of the rainfall, and, therefore, its origin. Some studies (Lorente and Redaño, 1991;Krajewski et al, 2003;Villarini et al, 2008) have been dedicated to this issue, due to the importance of this information in the investigation of the origin and evolution of the meteorological rainfall situation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of extreme rainfall in Barcelona using a microscale rain gauge network

Casas

Rodríguez

Redaño

2009

Meteorological Applications

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Extreme storms registered by the urban rain gauge network installed and supported by CLABSA (Clavegueram de Barcelona S. A.) in Barcelona in the period 1994-2001 have been investigated. Eleven rain events presenting intensities for durations between 5 min and 24 h with return periods equal to or larger than 5 years for any of the network gauges have been found. A cluster analysis has yielded four main classes of extreme rainfall events in this area, related to the meteorological scales involved: local (18%), mesoscale (37%) and synoptic storms (27%), as well as more complex rain events originated by multiscale mechanisms acting together (18%). An intensity index to classify extreme rainfall events in order to their complexity and severity, taking into account the contribution of the different scales implied in the rainfall processes, has been calculated. The frequency distribution of the intensity index values obtained for the urban network has resulted very similar to that calculated for rain data recorded by the Jardí gauge of the Observatory

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Section: Introductionmentioning

confidence: 99%

Analysis of extreme rainfall in Barcelona using a microscale rain gauge network

Casas

Rodríguez

Redaño

2009

Meteorological Applications

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“…Studying storm intensities for a short duration is not a new idea, and although these are not used for the design of hydraulic works, it is important to study intensities of up to 100 mm/h. These are documented and presented for duration less than 5 min [59,61]. The basin under study is located in the city of Queretaro, which has an area of 11,769 km 2 .…”

Section: Queretaro Hydrometeorological Networkmentioning

confidence: 99%

Physical Parameterization of IDF Curves Based on Short-Duration Storms

Gutiérrez-López

Hernandez

Sandoval

2019

Water

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Intensity-duration-frequency (IDF) curves are empirical mathematical formulations that have been used for years in engineering for planning, design, and operation of hydraulic projects. The expression proposed by Sherman (1931) has been validated and used largely by many researchers. In all cases, the four parameters of this formulation are obtained through a numerical procedure. Although these parameters are obtained from historical rainfall observations, the optimization of these parameters implies an infinite combination between them and all those solutions would be valid. Of the four parameters, only one of them (C) has units, and for this reason, a physical sense of parameter C is searched for. Having certainty that some of them can be measured in situ would represent a great advance for modern hydrology. With data from 523 storms monitored every minute, a parametric adjustment was made to the Sherman equation and the typical duration of storms at each site was also obtained. To demonstrate how rainfall intensities vary with the change in C value, rainfall intensities calculations for of 5, 10, 15, and 20 min rainfall duration are used to validate the proposed methodology. The results show that typical storm duration is correlated with the additive parameter of Sherman's formula. the rainfall depths of 5, 10, 15, and 30 min are inversely correlated with the rainfall depth of one hour, establishing empirical factors 0.29, 0.45, 0.57, and 0.79 respectively. Using data from nearly 200 rain gauges, Hershfield found values for non-dimensional factors that allowed the transformation of daily rainfall data to calculate IDF curves. In this research, frequency analysis was performed by fitting the Gumbel and Lognormal probability functions, using the maximum rainfall depth accumulated in 24 h to provide functional mathematical relationships for desegregation of rainfall in minutes. Even today, the same distributions are used for the analysis of the maximum annual precipitation associated with duration of 1, 2, 3, 6, 12, 18, 24, 48, and 72 h [4]. There are different methods or approaches to obtain IDF curves. A considerable literature on IDF curves has been published. The reference studies for IDF curves for Australia were conducted by [5][6][7]. In Belgium, the reference IDF curves were presented by [8,9]. In Canada, a number of investigations in the field of IDF curves were published by [10][11][12][13][14][15][16]. In Denmark [17,18] used Sherman's formulation to define IDF curves. In Sweden, detailed studies have also been formalized to define IDF curves [19][20][21]. To date, various methods have been developed and introduced in Spain to compute IDF curves [22][23][24]. In Taiwan, IDF curves were prepared according to the procedure used by [25][26][27]. Reference [28] have recently developed a methodology for select IDF curves in China. In Peninsular Malaysia, a software tool for estimated IDF curves has been developed as an Excel add-in by using Visual Basics for Applications [29]. A site in Java, Indonesia, wa...

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“…Este estudio podría estimular el debate, revelar, proporcionar evidencia y contribuir al estudio del parámetro C dentro del factor de duración de la ecuación de Sherman (1931). Estudiar intensidades de tormenta para duraciones cortas no es una idea nueva y si bien no se utilizan para el diseño de obras hidráulica, sí es importante investigar intensidades de hasta 100 mm/h, las cuales se han presentado (y está documentado) para duraciones menores a cinco minutos (Sumner, 1978).…”

Section: Materiales Y Métodosunclassified

Ajuste de curvas IDF a partir de tormentas de corta duración

Gutiérrez-López

Barragán-Regalado

2019

Tecnol. cienc. agua

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The curves intensity-duration-frequency (IDF) are used in hydrology to characterize the intensity of rainfall according to its duration and its return period. These curves are of great importance in the planning of water resources, as well as for the design of hydraulic works. The empirical equation proposed by Sherman in 1931, is still used today. The parameters of this equation are estimated by least squares or optimization methods. However, the values obtained to parameterize this equation do not have a physical sense. Using data from 523 monitored storms every minute, IDF curves are obtained. The results show that the parameter that adjusts the scale factor of the Sherman formula is a function of the typical duration storms. It is concluded that the scale factor must be obtained from physical relationships and not from analytical methods. It is recommended that traditionally calculated IDF curves be reviewed and typical storm durations compared with the scale factor of Sherman's formula.

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The prediction of short-duration storm rainfall intensity maxima

Cited by 9 publications

References 1 publication

Analysis of extreme rainfall in Barcelona using a microscale rain gauge network

Analysis of extreme rainfall in Barcelona using a microscale rain gauge network

Physical Parameterization of IDF Curves Based on Short-Duration Storms

Ajuste de curvas IDF a partir de tormentas de corta duración

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