Use of baseflow indices to delineate baseflow dominated and rapid response flow dominated watersheds.

Rudra, R. P.; Ahmed, Imran; Khan, Alamgir Akhtar; Singh, Kunwar; Goel, Pradeep K.; Khayer, M; Dickenson, Trevor

doi:10.7451/cbe.2015.57.1.1

Cited by 4 publications

(5 citation statements)

References 15 publications

(18 reference statements)

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“…Annually, our model showed baseflow close to BFI Standard, higher than HYSEP Minimum, and lower than the other 4 models (Table 2). Third, our results are in good agreement with, and supported by, the results obtained in other studies, including Rudra et al (2015), which analysed BFI for 115 Ontario watersheds, and Wang and Russell (2016) and Wang et al (2017), which explicitly estimated the snowmelt runoff.…”

Section: Discussionsupporting

confidence: 91%

“…Streamflow includes baseflow (the longer-term delayed flow from natural water storage such as groundwater discharge from aquifers) and quick flow (or surface runoff, the short-term response to a rainfall event or snow melt). Separating streamflow observed at a gauging site into baseflow and surface runoff helps characterize watershed hydrogeology and understand the water dynamics such as rainfall-runoff relationships and climate change impact on groundwater discharge (van Dijk, 2010;Gao et al, 2015;Rudra et al, 2015;Foks et al, 2019). Information on baseflow and surface runoff is also critical when dealing with a wide range of water-related issues such as flow regulations, water quality, habitat, reservoir design and operation, and hydroelectric power generation (Boulton and Hancock, 2006;Santhi et al, 2008;U.S.…”

Section: Introductionmentioning

confidence: 99%

“…Streamflow hydrograph analysis has long been used for separating streamflow into baseflow and surface runoff components and can be traced back to Boussinesq (1904) and Maillet (1905). A wide variety of approaches have evolved since then, and several reviews have described this development including Hall (1968), Nathan and McMahon (1990), Tallaksen (1995), Smakhtin (2001), and Rudra et al (2015). The approaches started with manual separation of the streamflow hydrograph into surface runoff and baseflow.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, incorrectly identifying snowmelt runoff as groundwater discharge has long been hypothesized, but, to the best of our knowledge, no studies have quantified this bias. Another limitation for the existing approaches is that most of them are limited to watershed sizes of no more than 1000-2000 km 2 (Rutledge, 1998). Despite these limitations, traditional hydrograph separation approaches are still widely used because of the modest data requirements and ease of implementation.…”

Section: Introductionmentioning

confidence: 99%

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A novel method for cold-region streamflow hydrograph separation using GRACE satellite observations

Wang

Russell

2021

Hydrol. Earth Syst. Sci.

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Abstract. Streamflow hydrograph analysis has long been used for separating streamflow into baseflow and surface runoff components, providing critical information for studies in hydrology, climate and water resources. Issues with established methods include the lack of physics and arbitrary choice of separation parameters, problems in identifying snowmelt runoff, and limitations on watershed size and hydrogeological conditions. In this study, a Gravity Recovery and Climate Experiment (GRACE)-based model was developed to address these weaknesses and improve hydrograph separation. The model is physically based and requires no arbitrary choice of parameters. The new model was compared with six hydrograph separation methods provided with the U.S. Geological Survey Groundwater Toolbox. The results demonstrated improved estimates by the new model particularly in filtering out the bias of snowmelt runoff in baseflow estimate. This new model is specifically suitable for applications over large watersheds which is complementary to the traditional methods that are limited by watershed size. The output from the model also includes estimates for watershed hydraulic conductivity and drainable water storage, which are useful parameters in evaluating aquifer properties, calibrating and validating hydrological and climate models, and assessing regional water resources.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A novel method for cold-region streamflow hydrograph separation using GRACE satellite observations

Wang

Russell

2021

Hydrol. Earth Syst. Sci.

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“…Their results showed that RDF has outperformed than ADUKIH method. Rudra et al (2015) examined baseflow indices to identify a baseflow and rapid flow in 150 basins in Ontario (Canada). By using the PART, RDF, UKIH, local minimum, fixed distances, and moving distances methods, they stated that BFI levels above 80% occur in group A and B soils and occur less than 80% in groups C and D. Minea (2017) examined the baseflow for three basins in the northeastern region of Romania.…”

Section: Introductionmentioning

confidence: 99%

A new approach to use of wavelet transform for baseflow separation of Karst springs (case study: Gamasiyab spring)

2022

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Today, groundwater is the essential resource the whole water sector demands. The spring baseflow discharge analysis can significantly help us better manage water resources. This study was focused on the separation baseflow discharge of the Gamasiyab karstic spring (western Iran) using the wavelet transform (WT). The recursive digital filter (RDF) method with different algorithms has been used to compare the approach performance. Forty-nine years (1968–2018) of the recorded springs’ daily discharge data were used for this aim. The isotopic content (IC) method was used to determine the best RDF algorithm and WT for baseflow separation. The IC of the monthly samples taken in 2017–2018 was measured. The results showed that the WT had the adjusted coefficient of determination ($$R_{{{\text{adjusted}}}}^{2}$$ R adjusted 2 ) of 0.95 and root mean square error (RMSE) of 0.552 (m3/s) compared to the IC index method. The best algorithm in the RDF method was related to the Eckhardt algorithm with $$R_{{{\text{adjusted}}}}^{2}$$ R adjusted 2 of 0.97 and RMSE of 0.670 (m3/s), which had the best performance compared to the IC index method. Results showed that in most samples, the values of the separated baseflow by the WT are closer to the isotopic values. Also, based on the RMSE criterion, the WT has a lower RMSE than the RDF method and is known as the best method in this study. The results showed that the WT accurately separated the spring baseflow discharge and could split the baseflow of rivers.

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Trends and legacy of freshwater salinization: untangling over 50 years of stream chloride monitoring

Mazumder

Wellen

Kaltenecker

et al. 2021

Environ. Res. Lett.

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Excessive use of road salts to maintain safe winter travel conditions leads to increasing chloride (Cl) concentrations in streams, damaging the structure and function of freshwater ecosystems. Long-term increasing stream Cl trends are generally attributed to increases in urban land cover, however recent research shows that even relatively rural streams can retain Cl and exceed water quality guidelines in summer after road salting has stopped. Untangling the relative influences of long-term changes in streamflow and urban growth on Cl trends is critical for making informed decisions about road salt management. The portion of Cl trends not explained by changes in streamflow or urban growth could be due to changes in road salt application rates and/or legacy Cl in groundwater that is slowly making its way to streams. This study assessed seasonal, long-term stream Cl trends across the Province of Ontario, Canada, where urbanization accelerated and road salt management plans started to develop since early 2000s. We compared stream Cl trends over salting and non-salting seasons with urban growth estimates from two independent time periods, 1965–1995 and 2002–2018. For a subset of sites with sufficient flow data in the periods analyzed, we parsed the seasonal trends into flow and management trend components. We found that most of the variance in the management trend component in the winter salting season could be explained by urbanization, while about half of it could be explained in the summer non-salting season. We further analyzed Cl estimates in low-flow conditions to explore the extent of subsurface contributions to Cl trends, and concluded with a summary of challenges and recommendations for future studies on road salt legacy in streams.

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Use of baseflow indices to delineate baseflow dominated and rapid response flow dominated watersheds.

Cited by 4 publications

References 15 publications

A novel method for cold-region streamflow hydrograph separation using GRACE satellite observations

A novel method for cold-region streamflow hydrograph separation using GRACE satellite observations

A new approach to use of wavelet transform for baseflow separation of Karst springs (case study: Gamasiyab spring)

Trends and legacy of freshwater salinization: untangling over 50 years of stream chloride monitoring

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