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HESS | Articles | Volume 23, issue 2
Hydrol. Earth Syst. Sci., 23, 1103–1112, 2019
https://doi.org/10.5194/hess-23-1103-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Hydrol. Earth Syst. Sci., 23, 1103–1112, 2019
https://doi.org/10.5194/hess-23-1103-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Technical note 25 Feb 2019

Technical note | 25 Feb 2019

Technical note: Analytical sensitivity analysis and uncertainty estimation of baseflow index calculated by a two-component hydrograph separation method with conductivity as a tracer

Weifei Yang et al.

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Subject: Catchment hydrology | Techniques and Approaches: Uncertainty analysis
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Cited articles

Cartwright, I., Gilfedder, B., and Hofmann, H.: Contrasts between estimates of baseflow help discern multiple sources of water contributing to rivers, Hydrol. Earth Syst. Sci., 18, 15–30, https://doi.org/10.5194/hess-18-15-2014, 2014. 
Costelloe, J. F., Peterson, T. J., Halbert, K., Western, A. W., and McDonnell, J. J.: Groundwater surface mapping informs sources of catchment baseflow, Hydrol. Earth Syst. Sci., 19, 1599–1613, https://doi.org/10.5194/hess-19-1599-2015, 2015. 
Eckhardt, K.: How to construct recursive digital filters for baseflow separation, Hydrol. Process., 19, 507–515, https://doi.org/10.1002/hyp.5675, 2005. 
Eckhardt, K.: Technical Note: Analytical sensitivity analysis of a two parameter recursive digital baseflow separation filter, Hydrol. Earth Syst. Sci., 16, 451–455, https://doi.org/10.5194/hess-16-451-2012, 2012. 
Ernest, L.: Gaussian error propagation applied to ecological data: Post-ice-storm-downed woody biomass, Ecol. Monogr., 75, 451–466, https://doi.org/10.1890/05-0030, 2005.  
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This paper analyzed the sensitivity of the baseflow index to the parameters of the conductivity two-component hydrograph separation method. The results indicated that the baseflow index is more sensitive to the conductivity of baseflow and the separation method may be more suitable for the long time series in a small watershed. After considering the mutual offset of the measurement errors of conductivity and streamflow, the uncertainty in baseflow index was reduced by half.
This paper analyzed the sensitivity of the baseflow index to the parameters of the conductivity...
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