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Sensitivity to space and time resolution of a hydrological model using digital elevation data.

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Sensitivity to space and time resolution of a hydrological model using digital elevation data. / Bruneau, P.; Gascuelodoux, C.; Robin, P. et al.
In: Hydrological Processes, Vol. 9, No. 1, 01.1995, p. 69-81.

Research output: Contribution to Journal/Magazine › Journal article

Harvard

Bruneau, P, Gascuelodoux, C, Robin, P, Merot, P & Beven, KJ 1995, 'Sensitivity to space and time resolution of a hydrological model using digital elevation data.', Hydrological Processes, vol. 9, no. 1, pp. 69-81. https://doi.org/10.1002/hyp.3360090107

APA

Bruneau, P., Gascuelodoux, C., Robin, P., Merot, P., & Beven, K. J. (1995). Sensitivity to space and time resolution of a hydrological model using digital elevation data. Hydrological Processes, 9(1), 69-81. https://doi.org/10.1002/hyp.3360090107

Vancouver

Bruneau P, Gascuelodoux C, Robin P, Merot P, Beven KJ. Sensitivity to space and time resolution of a hydrological model using digital elevation data. Hydrological Processes. 1995 Jan;9(1):69-81. doi: 10.1002/hyp.3360090107

Author

Bruneau, P. ; Gascuelodoux, C. ; Robin, P. et al. / Sensitivity to space and time resolution of a hydrological model using digital elevation data. In: Hydrological Processes. 1995 ; Vol. 9, No. 1. pp. 69-81.

Bibtex

@article{f29f70e4fa1d4de6a64d9ded094ea83a,
title = "Sensitivity to space and time resolution of a hydrological model using digital elevation data.",
abstract = "The space and time resolutions used for the input variables of a distributed hydrological model have a sufficient impact on the model results. This resolution depends on the required accuracy, experimental site and the processes and variables taken into account in the hydrological model. The influence of space and time resolution is studied here for the case of TOPMODEL, a model based on the variable contributing area concept, applied to an experimental 12 km2 catchment (Co{\"e}t-Dan, Brittany, France) during a two month winter period. A sensitivity analysis to space and time resolution is performed first for input variables derived from the digital elevation data, secondly for the optimized values of the TOPMODEL parameters and finally for modelling efficiency. This analysis clearly shows that a relevant domain of space and time resolutions where efficiency is fairly constant can be defined for the input topographic variables, as opposed to another domain of larger resolutions that induces a strong decrease of modelling efficiency. It also shows that the use of a single set of parameters, defined as mean values of parameters on this relevant domain of resolution, does not modify the accuracy of modelling. The sensitivity of the parameters to space and time resolution allows the physical significance of the parameter values to be discussed.",
keywords = "Hydrological models • Digital elevation data • Sensitivity analysis • Space/time resolution",
author = "P. Bruneau and C. Gascuelodoux and P. Robin and P. Merot and Beven, {K. J.}",
year = "1995",
month = jan,
doi = "10.1002/hyp.3360090107",
language = "English",
volume = "9",
pages = "69--81",
journal = "Hydrological Processes",
issn = "1099-1085",
publisher = "John Wiley and Sons Ltd",
number = "1",

}

RIS

TY - JOUR

T1 - Sensitivity to space and time resolution of a hydrological model using digital elevation data.

AU - Bruneau, P.

AU - Gascuelodoux, C.

AU - Robin, P.

AU - Merot, P.

AU - Beven, K. J.

PY - 1995/1

Y1 - 1995/1

N2 - The space and time resolutions used for the input variables of a distributed hydrological model have a sufficient impact on the model results. This resolution depends on the required accuracy, experimental site and the processes and variables taken into account in the hydrological model. The influence of space and time resolution is studied here for the case of TOPMODEL, a model based on the variable contributing area concept, applied to an experimental 12 km2 catchment (Coët-Dan, Brittany, France) during a two month winter period. A sensitivity analysis to space and time resolution is performed first for input variables derived from the digital elevation data, secondly for the optimized values of the TOPMODEL parameters and finally for modelling efficiency. This analysis clearly shows that a relevant domain of space and time resolutions where efficiency is fairly constant can be defined for the input topographic variables, as opposed to another domain of larger resolutions that induces a strong decrease of modelling efficiency. It also shows that the use of a single set of parameters, defined as mean values of parameters on this relevant domain of resolution, does not modify the accuracy of modelling. The sensitivity of the parameters to space and time resolution allows the physical significance of the parameter values to be discussed.

AB - The space and time resolutions used for the input variables of a distributed hydrological model have a sufficient impact on the model results. This resolution depends on the required accuracy, experimental site and the processes and variables taken into account in the hydrological model. The influence of space and time resolution is studied here for the case of TOPMODEL, a model based on the variable contributing area concept, applied to an experimental 12 km2 catchment (Coët-Dan, Brittany, France) during a two month winter period. A sensitivity analysis to space and time resolution is performed first for input variables derived from the digital elevation data, secondly for the optimized values of the TOPMODEL parameters and finally for modelling efficiency. This analysis clearly shows that a relevant domain of space and time resolutions where efficiency is fairly constant can be defined for the input topographic variables, as opposed to another domain of larger resolutions that induces a strong decrease of modelling efficiency. It also shows that the use of a single set of parameters, defined as mean values of parameters on this relevant domain of resolution, does not modify the accuracy of modelling. The sensitivity of the parameters to space and time resolution allows the physical significance of the parameter values to be discussed.

KW - Hydrological models • Digital elevation data • Sensitivity analysis • Space/time resolution

U2 - 10.1002/hyp.3360090107

DO - 10.1002/hyp.3360090107

M3 - Journal article

VL - 9

SP - 69

EP - 81

JO - Hydrological Processes

JF - Hydrological Processes

SN - 1099-1085

IS - 1

ER -