In: Journal of Hydrology and Hydromechanics, vol. 66, no. 3
Alberto Viglione - Magdalena Rogger - Herbert Pirkl - Juraj Parajka - Günter Blöschl
Detaily:
Rok, strany: 2018, 303 - 315
Kľúčové slová:
Rainfall-runoff; Catchment geology; Hydrologic models; Runoff response times; A-priori information.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
Since the beginning of hydrological research hydrologists have developed models that reflect their perception
about how the catchments work and make use of the available information in the most efficient way. In this paper we develop
hydrologic models based on field-mapped runoff generation mechanisms as identified by a geologist. For four different
catchments in Austria, we identify four different lumped model structures and constrain their parameters based on
the field-mapped information. In order to understand the usefulness of geologic information, we test their capability to
predict river discharge in different cases: (i) without calibration and (ii) using the standard split-sample calibration/
validation procedure. All models are compared against each other. Results show that, when no calibration is
involved, using the right model structure for the catchment of interest is valuable. A-priori information on model parameters
does not always improve the results but allows for more realistic model parameters. When all parameters are calibrated
to the discharge data, the different model structures do not matter, i.e., the differences can largely be compensated
by the choice of parameters. When parameters are constrained based on field-mapped runoff generation mechanisms, the
results are not better but more consistent between different calibration periods. Models selected by runoff generation
mechanisms are expected to be more robust and more suitable for extrapolation to conditions outside the calibration
range than models that are purely based on parameter calibration to runoff data.
Ako citovať:
ISO 690:
Viglione, A., Rogger, M., Pirkl, H., Parajka, J., Blöschl, G. 2018. Conceptual model building inspired by field-mapped runoff generation
mechanisms. In Journal of Hydrology and Hydromechanics, vol. 66, no.3, pp. 303-315. 0042-790X (until 2019) .
APA:
Viglione, A., Rogger, M., Pirkl, H., Parajka, J., Blöschl, G. (2018). Conceptual model building inspired by field-mapped runoff generation
mechanisms. Journal of Hydrology and Hydromechanics, 66(3), 303-315. 0042-790X (until 2019) .