Applicability of a conceptual tool in quantifying the effectiveness of Nature-Based Solutions in tropical urban flood mitigation

A case study in Paramaribo, Suriname

Master thesis (2023)

Authors

P. Keesmaat Civil Engineering & Geosciences

Contributors

R. Uijlenhoet Water Resources - CEG (mentor)
Jeroen Langeveld Sanitary Engineering - CEG (graduation committee member)
J.G. Langeveld Sanitary Engineering - CEG (graduation committee member)
Karel Heijnert Royal HaskoningDHV (graduation committee member)
Geert Prinsen Deltares (graduation committee member)
Faculty
Civil Engineering & Geosciences, Civil Engineering & Geosciences
Copyright: © 2023 Perrin Keesmaat
More Info
expand_more

Published Date

01-05-2023

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Civil Engineering & Geosciences

Abstract

This thesis aims to assess the applicability of the CRCTool for evaluating the effectiveness of NBS for mitigating tropical urban floods in the city center of Paramaribo. Assumptions related to urban flood mitigation were tested, a sensitivity analysis for the most sensitive parameters was performed, and the hydrological behaviour of groundwater processes, evapotranspiration, and percolation were critically assessed. In addition, the model outcomes were compared to a hydrodynamic model, developed in D-HYDRO, to determine the importance of spatial effects such as flow routing and elevation. It was found that the current state of the CRCTool restricts its applicability to areas with low rainfall and runoff volumes. The continuous modelling capabilities are limited due to the way hydrological fluxes are implemented. Minor model adjustments can be made to make the tool more suitable for areas with larger rainfall volumes. This research recommends implementing these adjustments and thoroughly testing the tool's performance. Additionally, to minimize the impact of flow routing and elevation, it is advised to test the tool on smaller areas where the hydrological conditions are more clearly defined.

Files

MSc_thesis_Perrin_Keesmaat.pdf
(pdf | 10.9 Mb)
Unknown license