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

Wang, Anqi; Qu, Ningling; Chen, Yuanfang; Li, Qi; Gu, Shanqiang

doi:10.3390/w10030312

Cited by 12 publications

(5 citation statements)

References 31 publications

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“…Design storms, along with intensity-duration-frequency (IDF) curves, are utterly useful tools internationally and widely employed in urban drainage system (UDS) projects and studies. They are used to evaluate the effects of intense rainfall events over a given urban basin, or, most generally, as a tool for urban drainage infrastructures design [1].…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Design Storms for Urban Drainage System Applications

Balbastre-Soldevila

García-Bartual

Andrés‐Domenech

2019

Water

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The present research develops a systematic application of a selected family of 11 well-known design storms, all of them obtained from the same rainfall data sample. Some of them are fully consistent with the intensity–duration–frequency (IDF) curves, while others are built according to typical observed patterns in the historical rainfall series. The employed data series consists on a high-resolution rainfall time series in Valencia (Spain), covering the period from 1990 to 2012. The goal of the research is the systematic comparison of these design storms, paying special attention to some relevant quantitative properties, as the maximum rainfall intensity, the total cumulative rainfall depth or the temporal pattern characterising the synthetic storm. For comparison purposes, storm duration was set to 1 hour and return period equal to 25 years in all cases. The comparison is enhanced by using each of the design storms as rainfall input to a calibrated urban hydrology rainfall–runoff model, yielding to a family of hydrographs for a given neighbourhood of the city of Valencia (Spain). The discussion and conclusions derived from the present research refer to both, the comparison between design storms and the comparison of resulting hydrographs after the application of the mentioned rainfall–runoff model. Seven of the tested design storms yielded to similar overall performance, showing negligible differences in practice. Among them, only Average Variability Method (AVM) and Two Parameter Gamma function (G2P) incorporate in their definition a temporal pattern inferred from empirical patterns identified in the historical rainfall data used herein. The remaining four design storms lead to more significant discrepancies attending both to the rainfall itself and to the resulting hydrograph. Such differences are ~8% concerning estimated discharges.

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Section: Introductionmentioning

confidence: 99%

A Comparison of Design Storms for Urban Drainage System Applications

Balbastre-Soldevila

García-Bartual

Andrés‐Domenech

2019

Water

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“…Wu et al (2006) and Schulte et al (2013) introduced a further differentiation of these basic types to create a finer grouping. However, all these studies assumed that the types could be described with a single-peaked event, though temporal distributions with multiple peaks occur and can be used as an additional type of distribution (Wang et al, 2018).…”

Section: Research Articlementioning

confidence: 99%

A New Unsupervised Learning Method to Assess Clusters of Temporal Distribution of Rainfall and Their Coherence with Flood Types

Oppel

Fischer

2020

Water Resources Research

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Several factors have an impact on the generation of floods, for example, antecedent moisture conditions and the shape of the catchment. A very important factor is the event rainfall, especially its temporal distribution. However, the categorization of temporal distributions is riddled with uncertainty, due to a priori assumptions on distribution types. Here, we propose a new clustering approach based on unsupervised learning, using dimensionless mass curves to describe the temporal distributions. The purpose of the proposed method is the identification of reoccurring temporal distributions of precipitation events. Additionally, the correlation of the resulting clusters of temporal distribution with rainfall-induced flood types is investigated. The application to several catchments in Germany showed the existence of spatial patterns of six different clusters for the temporal distribution and a significant coherence with the flood types. It was found that the temporal distribution of rainfall intensities shifts from early peaked to more uniformly distributed when shifting the flood type from short floods with high peaks to long-duration floods, often with several peaks.

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“…Yen and Chow (1980) proposed a triangular-shaped hyetograph. In addition to the abovementioned classic methods, other methods for deriving hyetographs have been developed more recently; please refer to Lin and Wu (2007), Lee and Ho (2008), Powell et al (2008), Yin et al (2014), Kottegoda et al (2014), NRMR (Liao et al, 2019b) for detailed descriptions (Wang et al, 2018). Furthermore, there are advantages and disadvantages among the different rainstorm hyetograph design methods.…”

Section: Introductionmentioning

confidence: 99%

Study of Four Rainstorm Design Methods in Chongqing

Liao

Qiang

Wang

et al. 2021

Front. Environ. Sci.

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Based on minute-by-minute precipitation data from 1961 to 2016 obtained from the National Basic Weather Station of Shapingba, Chongqing, China, the Chicago rainstorm method, the Pilgrim & Cordery (P&C) method, the Common-frequency method and the natural rainstorm moving regularity (NRMR) method were used to design short-duration (1–3 h) and long-duration (24 h) rainstorm hyetographs. Then, a standardization method for test samples was designed to ensure that each test sample was standardized and underwent an actual precipitation process. The designed rainstorm hyetographs and test samples were compared and analyzed, and the results show that the hyetographs for the 1, 3, and 24-h durations obtained with the NRMR method best represented the actual corresponding precipitation processes. The hyetograph for the 2-h duration obtained with the Chicago rainstorm method was best for the actual 2-h precipitation process. The design results of the Common-frequency method were generally good, but not outstanding. Finally, the P&C method showed a relatively poor performance for each duration.

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

Cited by 12 publications

References 31 publications

A Comparison of Design Storms for Urban Drainage System Applications

A Comparison of Design Storms for Urban Drainage System Applications

A New Unsupervised Learning Method to Assess Clusters of Temporal Distribution of Rainfall and Their Coherence with Flood Types

Study of Four Rainstorm Design Methods in Chongqing

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