Print Email Facebook Twitter Point cloud data fusion for enhancing 2d urban flood modelling Title Point cloud data fusion for enhancing 2d urban flood modelling Author Meesuk, V. (TU Delft Environmental Fluid Mechanics) Contributor Mynett, A.E. (promotor) Vojinovic, Zoran (promotor) Degree granting institution Delft University of Technology Date 2017-06-14 Abstract Modelling urban flood dynamics requires proper handling of a number of complex urban features. Although high-resolution topographic data can nowadays be obtained from aerial LiDAR surveys, such top-view LiDAR data still have difficulties to represent some key components of urban features. Incorrectly representing features like underpasses through buildings or apparent blockage of flow by sky trains may lead to misrepresentation of actual flood propagation, which could easily result in inadequate flood protection measures. Hence, proper handling of urban features plays an important role in enhancing urban flood modelling. This research explores present-day capabilities of using computer-based environments to merge side-view Structure from- Motion data acquisition with top-view LiDAR data to create a novel Multi-Source Views (MSV) topographic representation for enhancing 2D model schematizations. A new MSV topographic data environment was explored for the city of Delft and compared with the conventional top-view LiDAR approach. Based on the experience gained, the effects of different topographic descriptions were explored for 2D urban flood models of (i) Kuala Lumpur, Malaysia for the 2003 flood event; and (ii) Ayutthaya, Thailand for the 2011 flood event. It was observed that adopting the new MSV data as the basis for describing the urban topography, the numerical simulations provide a more realistic representation of complex urban flood dynamics, thus enhancing conventional approaches and revealing specific features like flood watermarks identification and helping to develop improved flood-protection measures. To reference this document use: http://resolver.tudelft.nl/uuid:839b7277-4c34-4c8b-8869-a0beb896cbd6 Publisher CRC Press / Balkema - Taylor & Francis Group ISBN 978-1-138-30617-2 Bibliographical note Dissertation submitted in fulfillment of the requirements of the Board for Doctorates of Delft University of Technology and of the Academic Board of the UNESCO-IHE Institute for Water Education. Part of collection Institutional Repository Document type doctoral thesis Rights © 2017 V. Meesuk Files PDF 2017_unesco_ihe_phd_thesi ... esuk_i.pdf 14.47 MB Close viewer /islandora/object/uuid:839b7277-4c34-4c8b-8869-a0beb896cbd6/datastream/OBJ/view