In: Journal of Hydrology and Hydromechanics, vol. 64, no. 1
Andrzej Brandyk - Adam Kiczko - Grzegorz Majewski - Małgorzata Kleniewska - Marcin Krukowski
Detaily:
Rok, strany: 2016, 23 - 29
Kľúčové slová:
Soil moisture; Modelling; Parameters uncertainty; GSA-GLUE analysis.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
Knowledge on soil moisture is indispensable for a range of hydrological models, since it exerts a considerable
influence on runoff conditions. Proper tools are nowadays applied in order to gain in-sight into soil moisture status, especially
of uppermost soil layers, which are prone to weather changes and land use practices. In order to establish relationships
between meteorological conditions and topsoil moisture, a simple model would be required, characterized by low
computational effort, simple structure and low number of identified and calibrated parameters. We demonstrated, that
existing model for shallow soils, considering mass exchange between two layers ( the upper and the lower), as well as
with the atmosphere and subsoil, worked well for sandy loam with deep ground water table in Warsaw conurbation.
GLUE (Generalized Likelihood Uncertainty Estimation) linked with GSA (Global Sensitivity Analysis) provided for final
determination of parameter values and model confidence ranges. Including the uncertainty in a model structure,
caused that the median soil moisture solution of the GLUE was shifted from the one optimal in deterministic sense. From
the point of view of practical model application, the main shortcoming were the underestimated water exchange rates between
the lower soil layer (ranging from the depth of 0.1 to 0.2 m below ground level) and subsoil. General model quality
was found to be satisfactory and promising for its utilization for establishing measures to regain retention in urbanized
conditions.
Ako citovať:
ISO 690:
Brandyk, A., Kiczko, A., Majewski, G., Kleniewska, M., Krukowski, M. 2016. Uncertainty of Deardorff’s soil moisture model based on continuous TDR
measurements for sandy loam soil. In Journal of Hydrology and Hydromechanics, vol. 64, no.1, pp. 23-29. 0042-790X (until 2019) .
APA:
Brandyk, A., Kiczko, A., Majewski, G., Kleniewska, M., Krukowski, M. (2016). Uncertainty of Deardorff’s soil moisture model based on continuous TDR
measurements for sandy loam soil. Journal of Hydrology and Hydromechanics, 64(1), 23-29. 0042-790X (until 2019) .