The influence of effective rainfall on modeled runoff hydrograph

Šraj, Mojca; Dirnbek, Luka; Brilly, Mitja

doi:10.2478/v10098-010-0001-5

Cited by 25 publications

(42 citation statements)

References 13 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Table 1 shows some basic properties of the Glinščica Stream catchment. It has already been studied in some of the previous studies, and a more detailed description of the catchment is provided by Bezak et al, Šraj et al and Brilly et al [8,14,37]. The lowland areas of the Gradaščica River, once natural floodplain areas, were partly urbanised in the last couple of decades, which resulted in an elevated flood risk for the area.…”

Section: Catchment Descriptionmentioning

confidence: 99%

“…One of the methods that can be used to estimate design variables in such cases is also the application of a hydrological model to define the design peak discharge or the complete design hydrograph [8,9]. Besides hydrological model parameters that have to be estimated during the calibration of the selected model, a design hyetograph definition has a significant impact on the model results [10][11][12][13][14][15][16]. In order to construct a design rainfall event for flood risk assessment, several methods can be applied (e.g., constant intensity method, triangular hyetograph, Natural Resources Conservation Service (NRCS) design storm, frequency-based or alternating block method, and Huff method), most of which are based on intensity-duration-frequency (IDF) relationships, namely on a single point or the entire IDF curve.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the amount of rainfall with the selected magnitude, the two most important factors related to the design hyetograph selection are the design rainfall duration, and rainfall distribution within the rainfall event (which is also called internal storm structure or temporal rainfall distribution) [15,16]. Šraj et al [14] have shown that a combination of rainfall duration that is significantly longer than the catchment time of concentration, and constant rainfall intensity within the design rainfall event can yield significantly different (more than 50% smaller) design peak discharges than design hyetographs with a rainfall duration that is approximately equal to the catchment time of concentration and the application of non-uniform (i.e., actual/real) rainfall intensity distribution. The essential differences in the time-to-peak of the resulted hydrographs of the hydrological model and differences in peak discharge can also be the consequence of the maximum rainfall intensity position within the design hyetograph [10,13,14,17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of the Rainfall Duration and Temporal Rainfall Distribution Defined Using the Huff Curves on the Hydraulic Flood Modelling Results

et al. 2018

Self Cite

View full text Add to dashboard Cite

In the case of ungauged catchments, different procedures can be used to derive the design hydrograph and design peak discharge, which are crucial input data for the design of different hydrotechnical engineering structures, or the production of flood hazard maps. One of the possible approaches involves using a hydrological model where one can calculate the design hydrograph through the design of a rainfall event. This study investigates the impact of the design rainfall on the combined one-dimensional/two-dimensional (1D/2D) hydraulic modelling results. The Glinščica Stream catchment located in Slovenia (central Europe) is used as a case study. Ten different design rainfall events were compared for 10 and 100-year return periods, where we used Huff curves for the design rainfall event definition. The results indicate that the selection of the design rainfall event should be regarded as an important step, since the hydraulic modelling results for different scenarios differ significantly. In the presented experimental case study, the maximum flooded area extent was twice as large as the minimum one, and the maximum water velocity over flooded areas was more than 10 times larger than the minimum one. This can lead to the production of very different flood hazard maps, and consequently planning very different flood protection schemes.

show abstract

Section: Catchment Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of the Rainfall Duration and Temporal Rainfall Distribution Defined Using the Huff Curves on the Hydraulic Flood Modelling Results

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to determine the slope and diameter of the pipeline when designing drainage pipelines, models that simulate urban waterlogging are developed. Rainfall is the input of most kinds of hydrological and hydraulic models, whose accuracy and resolution directly affect the correctness of the model output [5,6]. Usually, a design rainstorm with a given return period is used in such models.…”

Section: Introductionmentioning

confidence: 99%

A 60-Minute Design Rainstorm for the Urban Area of Yangpu District, Shanghai, China

Wang

Chen

et al. 2018

Water

View full text Add to dashboard Cite

Rainfall with varied temporal distribution is an essential input to urban flood models. In this study, a 60-min design rainstorm with different return periods for the urban area of Yangpu District, Shanghai, China was derived. The design of areal rainfall amounts with given return periods was calculated through frequency analysis. The temporal distribution of the hyetograph was derived using the Pilgrim and Cordery method, combined with the fuzzy identification of seven mode hyetographs for single-peak and double-peak rainstorms separately. The derived hyetographs using the Pilgrim and Cordery method were compared with the classic Chicago rainstorm method. The results indicated that: (1) separating single-peak and double-peak rainstorms to derive respective hyetographs is more practical and rational; (2) a design rainstorm using the proposed methodology is superior to the Chicago rainstorm method.

show abstract

“…On the flash floods, there is still a lack of sufficient information (Gaume et al, 2009. Therefore, description and analysis (also by means of rainfallrunoff models) of every flood event is extremely important (Dzubák et al, 1995;Šťastný and Majerčáková, 2001;Kliment et al, 2011;Blaškovičová et al, 2011;Šraj et al, 2010;Braud et al, 2010;Aristeidis et al, 2011;Parajka et al, 2010). The HYDRATE project was proposed to deepen our knowledge on the flood generating mechanisms, (Borga et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Estimating Flash Flood Peak Discharge in Gidra and Parná Basin: Case Study for the 7-8 June 2011 Flood

Pekárová¹,

Svoboda²,

Miklánek³

et al. 2012

Journal of Hydrology and Hydromechanics

View full text Add to dashboard Cite

We analyzed the runoff and its temporal distribution during the catastrophic flood events on river Gidra (32.9 km 2 ) and Parná (37.86 km 2 ) of the 7th June 2011. The catchments are located in the Small Carpathian Mountains, western Slovakia. Direct measurements and evaluation of the peak discharge values after such extreme events are emphasized in the paper including exceedance probabilities of peak flows and of their causal flash rainfall events. In the second part of the paper, plausible modeling mode is presented, using the NLC (Non Linear Cascade) rainfall-runoff model. Several hypothetical extreme flood events were simulated by the NLC model for both rivers. Also the flood runoff volumes are evaluated as basic information on the natural or artificial catchment storage. Predložený príspevok analyzuje tvorbu a priebeh odtoku počas katastrofickej povodňovej situácie na Gidre (32,9 km 2 ) a na Parnej (37,86 km 2 ) dňa 7. 6. 2011. Povodia týchto tokov sa nachádzajú v Malých Karpatoch na západnom Slovensku. V príspevku sa kladie dôraz na priame zameranie a vyhodnotenie kulminačných prietokov po výskyte takýchto povodní. Diskutujú sa problémy vyjadrenia pravdepodobnosti prekročenia kulminačných prietokov a dažďov, ktoré ich spôsobili. V druhej časti príspevku je prezentovaný možný spôsob modelovania povodne jednoduchým zrážkovo-odtokovým modelom NLC. Daným modelom NLC sú následne simulované prietoky Gidry v stanici Píla a Parná v stanici Horné Orešany za extrémnej hypotetickej zrážkovej udalosti. Hodnotené sú objemy odtoku počas povodní, ako základný údaj pre reálny odhad ich prirodzeného alebo umelého zadržania.KĽÚČOVÉ SLOVÁ: bleskové povodne, rieky Gidra a Parná, analýza povodní, modelovanie odtoku.

show abstract

The influence of effective rainfall on modeled runoff hydrograph

Cited by 25 publications

References 13 publications

Impact of the Rainfall Duration and Temporal Rainfall Distribution Defined Using the Huff Curves on the Hydraulic Flood Modelling Results

Impact of the Rainfall Duration and Temporal Rainfall Distribution Defined Using the Huff Curves on the Hydraulic Flood Modelling Results

A 60-Minute Design Rainstorm for the Urban Area of Yangpu District, Shanghai, China

Estimating Flash Flood Peak Discharge in Gidra and Parná Basin: Case Study for the 7-8 June 2011 Flood

Contact Info

Product

Resources

About