TY  - GEN
A1  - Reusser, Dominik
A1  - Blume, Theresa
A1  - Schaefli, Bettina
A1  - Zehe, Erwin
T1  - Analysing the temporal dynamics of model performance for hydrological models
N2  - The temporal dynamics of hydrological model performance gives insights into errors that cannot be obtained from global performance measures assigning a single number to the fit of a simulated time series to an observed reference series. These errors can include errors in data, model parameters, or model structure. Dealing with a set of performance measures evaluated at a high temporal resolution implies analyzing and interpreting a high dimensional data set. This paper presents a method for such a hydrological model performance assessment with a high temporal resolution and illustrates its application for two very different rainfall-runoff modeling case studies. The first is the Wilde Weisseritz case study, a headwater catchment in the eastern Ore Mountains, simulated with the conceptual model WaSiM-ETH. The second is the Malalcahuello case study, a headwater catchment in the Chilean Andes, simulated with the physicsbased model Catflow. The proposed time-resolved performance assessment starts with the computation of a large set of classically used performance measures for a moving window. The key of the developed approach is a data-reduction method based on self-organizing maps (SOMs) and cluster analysis to classify the high-dimensional performance matrix. Synthetic peak errors are used to interpret the resulting error classes. The final outcome of the proposed method is a time series of the occurrence of dominant error types. For the two case studies analyzed here, 6 such error types have been identified. They show clear temporal patterns, which can lead to the identification of model structural errors.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 140 
KW  - Rainfall-runoff response
KW  - Process identification
KW  - Improved calibration
KW  - Soil-moisture
KW  - Catchment
Y1  - 2010
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/4314
UR  - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-45114
ER  -