Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) A comprehensive distributed hydrological modeling intercomparison to support processes representation and data collection strategies
Autor Baroni, G.; Schalge, B.; Rakovec, O.; Kumar, R.; Schüler, L.; Samaniego, L.; Simmer, C.; Attinger, S.;
Journal / Serie Water Resources Research
Erscheinungsjahr 2019
Department CHS;
Band/Volume 55
Heft 2
Sprache englisch;
POF III (gesamt) T53;
Supplements https://agupubs.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1029%2F2018WR023941&file=wrcr23798-sup-0001-2018WR023941-SI.docx
Keywords hydrological models; assessments; monitoring strategies; improvements
Abstract The improvement of process representations in hydrological models is often only driven by the modelers’ knowledge and data availability. We present a comprehensive comparison between two hydrological models of different complexity that is developed to support 1) the understanding of the differences between model structures and 2) the identification of the observations needed for model assessment and improvement. The comparison is conducted on both space and time and by aggregating the outputs at different spatio‐temporal scales. In the present study, mHM, a process‐based hydrological model and ParFlow‐CLM, an integrated subsurface‐surface hydrological model, are used. The models are applied in a mesoscale catchment in Germany. Both models agree in the simulated river discharge at the outlet and the surface soil moisture dynamics, lending their supports for some model applications (drought monitoring). Different model sensitivities are, however, found when comparing evapotranspiration and soil moisture at different soil depths. The analysis supports the need of observations within the catchment for model assessment, but it indicates that different strategies should be considered for the different variables. Evapotranspiration measurements are needed at daily resolution across several locations while highly‐resolved spatially distributed observations with lower temporal frequency are required for soil moisture. Finally, the results show the impact of the shallow groundwater system simulated by ParFlow‐CLM and the need to account for the related soil moisture re‐distribution. Our comparison strategy can be applied to other models types and environmental conditions to strengthen the dialog between modelers and experimentalists for improving process representations in Earth system models.
ID 21348
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=21348
Baroni, G., Schalge, B., Rakovec, O., Kumar, R., Schüler, L., Samaniego, L., Simmer, C., Attinger, S. (2019):
A comprehensive distributed hydrological modeling intercomparison to support processes representation and data collection strategies
Water Resour. Res. 55 (2), 990 - 1010