Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework.

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Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework. / Younger, Philip M.; Freer, Jim E.; Beven, Keith J.
In: Hydrological Processes, Vol. 23, No. 14, 01.07.2009, p. 1988-2003.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Younger, PM, Freer, JE & Beven, KJ 2009, 'Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework.', Hydrological Processes, vol. 23, no. 14, pp. 1988-2003. https://doi.org/10.1002/hyp.7341

APA

Younger, P. M., Freer, J. E., & Beven, K. J. (2009). Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework. Hydrological Processes, 23(14), 1988-2003. https://doi.org/10.1002/hyp.7341

Vancouver

Younger PM, Freer JE, Beven KJ. Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework. Hydrological Processes. 2009 Jul 1;23(14):1988-2003. doi: 10.1002/hyp.7341

Author

Younger, Philip M. ; Freer, Jim E. ; Beven, Keith J. / Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework. In: Hydrological Processes. 2009 ; Vol. 23, No. 14. pp. 1988-2003.

Bibtex

@article{1d755bda04f44dfc83b9cd002aa9e483,

title = "Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework.",

abstract = "Spatial patterns of rainfall are known to cause differences in observed flow. In this paper, the effects of perturbations in rainfall patterns on changes in parameter sets as well as model output are explored using the hydrological model Dynamic TOPMODEL for the Brue catchment (135 km2) in southwest England. Overall rainfall amount remains the same at each time step so the perturbations act as effectively treated errors in the spatial pattern. The errors were analysed with particular emphasis on when they could be detected under an uncertainty framework. Higher rainfall perturbations (multipliers of × 4 and greater) in the low lying and high areas of the catchment resulted in changes to event peaks and accompanying compensation in the baseflow. More significantly, changes in the effective model parameter values required by the best models to take account of the more extreme patterns were able to be detected by noting when distributions of parameters change under uncertainty.",

keywords = "spatial patterns • precipitation • dynamic TOPMODEL • parameter changes • spatial error",

author = "Younger, {Philip M.} and Freer, {Jim E.} and Beven, {Keith J.}",

year = "2009",

month = jul,

day = "1",

doi = "10.1002/hyp.7341",

language = "English",

volume = "23",

pages = "1988--2003",

journal = "Hydrological Processes",

issn = "0885-6087",

publisher = "John Wiley and Sons Ltd",

number = "14",

}

RIS

TY - JOUR

T1 - Detecting the effects of spatial variability of rainfall on hydrological modelling within an uncertainty analysis framework.

AU - Younger, Philip M.

AU - Freer, Jim E.

AU - Beven, Keith J.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Spatial patterns of rainfall are known to cause differences in observed flow. In this paper, the effects of perturbations in rainfall patterns on changes in parameter sets as well as model output are explored using the hydrological model Dynamic TOPMODEL for the Brue catchment (135 km2) in southwest England. Overall rainfall amount remains the same at each time step so the perturbations act as effectively treated errors in the spatial pattern. The errors were analysed with particular emphasis on when they could be detected under an uncertainty framework. Higher rainfall perturbations (multipliers of × 4 and greater) in the low lying and high areas of the catchment resulted in changes to event peaks and accompanying compensation in the baseflow. More significantly, changes in the effective model parameter values required by the best models to take account of the more extreme patterns were able to be detected by noting when distributions of parameters change under uncertainty.

AB - Spatial patterns of rainfall are known to cause differences in observed flow. In this paper, the effects of perturbations in rainfall patterns on changes in parameter sets as well as model output are explored using the hydrological model Dynamic TOPMODEL for the Brue catchment (135 km2) in southwest England. Overall rainfall amount remains the same at each time step so the perturbations act as effectively treated errors in the spatial pattern. The errors were analysed with particular emphasis on when they could be detected under an uncertainty framework. Higher rainfall perturbations (multipliers of × 4 and greater) in the low lying and high areas of the catchment resulted in changes to event peaks and accompanying compensation in the baseflow. More significantly, changes in the effective model parameter values required by the best models to take account of the more extreme patterns were able to be detected by noting when distributions of parameters change under uncertainty.

KW - spatial patterns • precipitation • dynamic TOPMODEL • parameter changes • spatial error

U2 - 10.1002/hyp.7341

DO - 10.1002/hyp.7341

M3 - Journal article

VL - 23

SP - 1988

EP - 2003

JO - Hydrological Processes

JF - Hydrological Processes

SN - 0885-6087

IS - 14

ER -

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