A step toward global-scale applicability and transferability of flow duration curve studies: A flow duration curve review (2000–2020)

Leong, Chris; Yokoo, Yoshiyuki

doi:10.1016/j.jhydrol.2021.126984

Cited by 13 publications

(12 citation statements)

References 201 publications

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“…However, Cheng et al (2012) and Ye et al (2012) suggested more complex models are needed in arid regions. Given the difficulty of modelling ephemeral flows in general (Leong & Yokoo, 2021), even with our approach, our study possibly suggests a concept that even though dry catchments have less complex model structures, perhaps the relationship between the internal components (parameter and equations) is more complex causing difficulty in reproducing FDC shapes in dry areas.…”

Section: Discussionmentioning

confidence: 98%

“…For example, Botter, Porporato, Rodriguez‐Iturbe, and Rinaldo (2007) were able to derive the probability density function of the baseflow component from assumed dominant process controls in the subsurface drainage system, showing that few simple but important parameters relating to soil moisture dynamics, characteristic residence time and stationary rainfall events could be used to interpret FDC low flows as well as high flows (see Muneepeerakul et al, 2010). Few other extensions of this framework have been discussed in the FDC review (Leong & Yokoo, 2021) while others include investigations relating to non‐linear approaches and examining recessional regime behaviours (e.g., Botter et al, 2009; Botter et al, 2013), testing framework applicability (e.g., Botter, 2010), urban streamflow (e.g., Mejia et al, 2014) and quantifying historical land use change impacts on the streamflow regime (e.g., Botter, 2014).…”

Section: Introductionmentioning

confidence: 99%

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A multiple hydrograph separation technique for identifying hydrological model structures and an interpretation of dominant process controls on flow duration curves

Leong

Yokoo

2022

Hydrological Processes

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There has been significant progress made towards understanding the process controls that govern the shapes of flow duration curves (FDC). However, the transferability of the knowledge gained to large spatial scales is still lacking, partly due to the fixed representation of the model structures representing the unobserved underground layer. In the context of improving large scale applicability/transferability of FDC studies: (1) we propose a novel approach to transform/restructure the representation of the subsurface component in hydrological models to be flexible and adaptable in any environment and (2) provide a thorough interpretation of the dominant processes that impact the shape of FDCs. The flexible structure is designed from a series of multiple connected linear reservoirs that are developed from a unique multiple hydrograph separation procedure, to estimate the number of distinct hydrological processes at play. The main results are: (1) wet catchments have more complex model structures (more reservoirs) than arid catchments; indicating that subsurface processes are potentially more present in wet catchments than in drier ones. Dry catchments have more near surface occurring processes, thus have less complex model structures. However, more complexity is potentially required within the internal reservoirs of dry catchments. (2) The strength of interference in the intermediate reservoirs in controlling the dominant processes towards the bottom determined the shape of FDCs, and this increased with aridity. The novel finding is that a model structure can be determined by the catchment's ability to generate flows as well as the strength of low flow persistence. Hence, we propose a conceptual framework for the development of flexible model structures based on the shapes of FDCs. The transformation of models to be flexible in this research, should contribute to studies that seek the transferability of models over large spatial scales.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

A multiple hydrograph separation technique for identifying hydrological model structures and an interpretation of dominant process controls on flow duration curves

Leong

Yokoo

2022

Hydrological Processes

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“…The FDC shape is unique to a catchment; it is determined by the hydrologic heterogeneity in the catchments, and the resulting shape exhibits distinct information of these interacting processes (Leong & Yokoo, 2021). Thus, in the analysis headwater, the springs had very large FDC contrasts.…”

Section: Water Production Resilience and Flow Duration Curvesmentioning

confidence: 98%

“…FDC are the probability of average daily flow of a watercourse be exceeded or equaled, obtained through the relationship between flows and percentages of time (Vogel & Fennessey, 1995). It results in a graphical that condense valuable hydrological information, that can be easily accessed (Zhang et al, 2015;Zhang, 2017;Ridolfi et al, 2020;Leong & Yokoo, 2021). The FDC was used in studies of water supply and quality (Sinha et al, 2019), water concession (Detzel et al, 2018), irrigation (Silva & Manzione, 2020), hydroelectricity (Castellarin et al, 2007;Ceola et al, 2018), environmental flows (Blanco et al, 2013), climate change and extreme hydrological events (Pumo et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Protected springs water resilience in watershed of south of Brazil

Todeschini

Swarowsky

Panziera

et al. 2022

RBRH

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Springs of the Vacacaí-Mirim river basin, in the Atlantic Forest biome, are protected by law because they provide an environmental service through water supply. No study provided identification, estimates and information about the seasonality of water resilience and environmental conditions of these springs, which supply the central region of the state of Rio Grande do Sul, Brazil. This study monitored headwater flow volume and interpreted the results through seasonality and use of the flow duration curve, characterizing the springs and showing the water production capacity. As a result, the springs presented higher flow duration curve contrasts. Considering consistent monitoring time, differences in flow characteristics occurred in the analyzed springs allowed to qualify based on their persistence, temporary or ephemeral flow, showing which springs are more resilient. The shape of the flow permanence curve was different for each spring in the basin. The study was able to determine the flow duration curve and confirm the resilience and reality of a headwater of the Vacacaí-Mirim river basin, being more accurate and necessary than estimates of flow from springs.

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“…The FDC is unique to each catchment, and it is influenced by various factors including climate, topography, physiography, vegetation cover, land use (Castellarin et al, 2013;Brown et al, 2013;Sadegh et al, 2016). It has become a popular tool used in modern hydrology for various water resources applications (Leong and Yokoo, 2021), since it provides concise and valuable information about river streamflow variability and catchment response (Blöschl et al, 2013;Boscarello et al, 2016). For example, slope steepness in the middle part of a FDC is characteristic of a catchment's precipitation retention properties (Yilmaz et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Technical note: Statistical generation of climate-perturbed flow duration curves

Yildiz¹,

Milton²,

Brown³

et al. 2023

Preprint

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Abstract. Assessing the robustness of a water resource system's performance under climate change involves exploring a wide range of streamflow conditions. This is often achieved through rainfall-runoff models, but these are commonly validated under historical conditions with no guarantee that calibrated parameters would still be valid in a different climate. In this note, we introduce the first statistical generation method to produce a range of plausible streamflow futures that are coherent across the full range of hydrological conditions. It relies on a three-parameter analytical representation the flow duration curve (FDC) that has been proved to perform well across a range of basins of different climate. We rigorously prove that for common sets of streamflow statistics mirroring average behavior, variability, and low flows, the parameterisation of the FDC under this representation is unique. We also show that conditions on these statistics for a solution to exist are commonly met in practice. These analytical results imply that streamflow futures can be explored by sampling wide ranges of three key flow statistics, and by deriving the corresponding FDC to model basin response across the full spectrum of flow conditions. We illustrate this method by exploring in which hydro-climatic futures a proposed run-of-river hydropower plant in eastern Turkey is financially viable. Results show that contrary to approaches that modify streamflow statistics using multipliers applied uniformly throughout a time series, our approach seamlessly represents a large range of futures with increased frequencies of both high and low flows. This matches expected impacts of climate change in the region, and supports analyses of the financial robustness of the proposed infrastructure to climate change. We conclude by highlighting how refinements to the approach could further support rigorous explorations of hydro-climatic futures without the help of rainfall-runoff models.

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A step toward global-scale applicability and transferability of flow duration curve studies: A flow duration curve review (2000–2020)

Cited by 13 publications

References 201 publications

A multiple hydrograph separation technique for identifying hydrological model structures and an interpretation of dominant process controls on flow duration curves

A multiple hydrograph separation technique for identifying hydrological model structures and an interpretation of dominant process controls on flow duration curves

Protected springs water resilience in watershed of south of Brazil

Technical note: Statistical generation of climate-perturbed flow duration curves

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