Urban hydrologic trend analysis based on rainfall and runoff data analysis and conceptual model calibration

Sun, Siao; Barraud, Sylvie; Branger, Flora; Braud, Isabelle; Castebrunet, Hélène

doi:10.1002/hyp.11109

Cited by 14 publications

(9 citation statements)

References 30 publications

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“…Charlier et al (2015) applied the wavelet transform method to detect changes in the PRR. Sun et al (2016) assessed hydrologic trends in urban catchments using a conceptual urban precipitation-runoff model, which is beneficial for storm water management and planning. There is no doubt that variations in the PRR reflect the actual integrated volume of precipitation and runoff.…”

Section: Introductionmentioning

confidence: 99%

Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China

Zhang

Feng

2018

Hydrol. Earth Syst. Sci.

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Abstract. The frequency and intensity of drought are increasing dramatically with global warming. However, few studies have characterized drought in terms of its impacts on ecosystem services, the mechanisms through which ecosystems support life. As a result, little is known about the implications of increased drought for resource management. This case study characterizes drought by linking climate anomalies with changes in the precipitation–runoff relationship (PRR) on the Loess Plateau of China, a water-limited region where ongoing revegetation makes drought a major concern. We analyzed drought events with drought durations ≥ 5 years and mean annual precipitation anomaly (PA) values ≤ −5 % during drought periods. The results show that continuous precipitation shifts are able to change the water balance of watersheds in water-limited areas, and multi-year drought events cause the PRR to change with a significantly decreasing trend (p < 0.05) compared to other historical records. For the Loess Plateau as a whole, the average runoff ratio decreased from 10 to 6.8 % during 1991–1999. The joint probability and return period gradually increase with increasing of drought duration and severity. The ecosystem service of water yield is easily affected by drought events with durations equal to or greater than 6 years and drought severity values equal to or greater than 0.55 (precipitation ≤ 212 mm). At the same time, multi-year drought events also lead to significant changes in the leaf area index (LAI). Such studies are essential for ecosystem management in water-limited areas.

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Section: Introductionmentioning

confidence: 99%

Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China

Zhang

Feng

2018

Hydrol. Earth Syst. Sci.

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“…The Mann-Kendall method (Kendall, 1955;Mann, 1945), a nonparametric trend detection test extensively applied in climatology and hydrology (e.g., Gocic and Trajkovic, 2013;Sun et al, 2017), is used in this study to examine whether a variable exhibits a trend. It tests the null hypothesis H0 of trend absence in the vector [x1, x2,…, xn] against the alternative of a trend.…”

Section: Mann-kendall Methods and Sen's Slopementioning

confidence: 99%

Identifying hydro-climatic and socioeconomic forces of water scarcity through structural decomposition analysis: A case study of Beijing city

Sun

Bao

et al. 2019

Science of The Total Environment

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“…Global models of rainfall-runoff were applied on catchment scale as well as individual surface scale (rooftops and paved areas). The most commonly adopted approach is the constant initial loss and constant runoff coefficient e.g., [18,32,[83][84][85][86]. Few others considered variable initial losses to substitute for a continuous simulation and the effect of dry weather on initial conditions e.g., [13,78].…”

Section: Model Evaluationmentioning

confidence: 99%

Runoff Losses on Urban Surfaces during Frequent Rainfall Events: A Review of Observations and Modeling Attempts

Rammal

Berthier

2020

Water

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Quantifying urban runoff during frequent rainfall events is a key element in quality management of urban water due to their high contribution to the annual runoff flow. This explains the growing interest among hydrologists in studying runoff flow on urban surfaces. In this paper, we review most of the experimental approaches as well as the modeling ones conducted in the literature to understand and estimate runoff flow on urban areas. This review highlights the incoherence between our current understanding of the hydrological behavior of urban areas during frequent events and our conception of the loss functions in the urban drainage models. Field studies provided more insight into the determinant processes occurring on the different surface types during frequent events with depression storage being a fundamental element varying between surface types and for the same surface type and infiltration process being relatively important on paved areas especially in their cracks that constitute preferential pathways for rainwater. Analyzing a wide range of urban drainage models showed that these elements along with the temporal evolution of the hydrological behavior of urban surfaces due to seasonal and state conditions are not fully integrated in the models’ structures, which were initially developed for heavy rainfall events. Adapting the assumptions of urban drainage models based on these new factors must improve the performance of hydrological models for frequent rainfall events.

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Urban hydrologic trend analysis based on rainfall and runoff data analysis and conceptual model calibration

Cited by 14 publications

References 30 publications

Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China

Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China

Identifying hydro-climatic and socioeconomic forces of water scarcity through structural decomposition analysis: A case study of Beijing city

Runoff Losses on Urban Surfaces during Frequent Rainfall Events: A Review of Observations and Modeling Attempts

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