Extreme flood reconstruction by using the 3DNet platform for hydrological modelling

Abstract

Notwithstanding recent advances in hydrological modelling, flood simulations remain challenging since many processes must be simulated with high computational efficiency. This paper presents a novel geographic information system (GIS)-oriented platform 3DNet and the associated hydrologic model, with focus on the platform and model features that are relevant for flood simulations. The platform enables hydraulic structures to be incorporated in the hydrologic model, as well as water retention. A limiting capacity can be imposed on every river reach enabling estimation of flooding volume. Runoff is simulated within irregularly shaped units that can be aggregated providing spatial flexibility, i.e. model setup can vary from lumped to semi- and fully-distributed. The model contains many parameters with a physical connotation that can be inferred from catchment characteristics, and it enables simulations with minimum data requirements. All algorithms are implemented in C++ warranting fast computations, while the spatial flexibility can provide additional speed-up. The model is used for a reconstruction of a devastating flood in the Kolubara catchment in May 2014. Despite incomplete and uncertain observations, reasonable results across the catchment are obtained with the plausible parameter estimates. The results suggest that enclosure of the presented features in flood simulation tools would improve simulation accuracy and efficiency.

Incorporating stakeholders’ preferences into a multi-criteria framework for planning large-scale Nature-Based Solutions

“…In 2006 and 2009 similar events with similar consequences occurred. The most severe problems were caused by the flood in May 2014, when the population, economy, infrastructure and natural resources along Tamnava and its tributaries suffered enormous damage (Stanić et al 2018 ). Therefore, strategies to reduce flood risk level and the impacts of extreme events are needed.…”

Evaluation of Green and Grey Flood Mitigation Measures in Rural Watersheds

“…An overview of the characteristics of this model and its calibration are presented in the Supplementary material. Details on the reconstruction of this flood event can be found in the literature [29].…”

“…Only MODEL 2014 was used for non-stationary simulations. The hydrographs used to run MODEL 2014 were either observed at the stream gauges or simulated by hydrologic models [29]. The remaining model versions were used for stationary simulations and were driven with design flood flows of various return periods.…”

Ocena Vremena Pojave Oticaja U Hidrološkim Modelima

“…The 3DNet-Catch hydrologic model is used for runoff simulations. The model comprises three routines intended for runoff volume simulations, and runoff and channel routing routines [9]. Runoff volume is simulated with the interception, snow and soil routine.…”