University of Twente Student Theses
Application of the fast flood simulation model for local risk-informed decision-making on flood risk reduction : a case study of Pamba Basin, Kerala India
Glas, Vera (2023) Application of the fast flood simulation model for local risk-informed decision-making on flood risk reduction : a case study of Pamba Basin, Kerala India.
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| Abstract: | Flood simulation models are an important source of information in risk-informed decision making to mitigate flood risks. Conventional physically-based flood models are associated with large computational demands. Novel advancements have led to the development of the opensource Fast Flood Simulation (FFS) model, which is available on de fastflood.org website. The FFS-model is up to 1500 times faster than conventional flood models. This offers large potential for application in interactive planning tools, scenario-based flood risks assessments and real-time flood modelling. This report reflects on the practical applicability and accuracy of the FFS-model using the case-study area of the Pamba Basin in Kerala, India. Analyses of historical timeseries led to the development of catchment-specific discharge and rainfall-related return periods. In the subsequent calibration process a Nash Sufficient Efficiency of 0.79 and a PBIAS of 2.4% was reached using six independent historic events. Additionally, the practical applicability of the FFS-model was studied for climate change scenarios, different intervention designs and by executing a flood exposure and risks assessment for local self-governments (LSGs). Nevertheless, the different FFS-model usage scenarios showed that the FFS-model offers large potential to contribute to the understanding of scenario-based flood hazard and consequently, risk-informed decision-making. |
| Item Type: | Essay (Master) |
| Faculty: | ITC: Faculty of Geo-information Science and Earth Observation |
| Subject: | 30 exact sciences in general, 38 earth sciences, 43 environmental science, 56 civil engineering, 74 (human) geography, cartography, town and country planning, demography |
| Programme: | Spatial Engineering MSc (60962) |
| Link to this item: | https://purl.utwente.nl/essays/97911 |
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