Print Email Facebook Twitter The need for high resolution precipitation data to improve urban drainage modelling Title The need for high resolution precipitation data to improve urban drainage modelling Author Ten Veldhuis, J.A.E. Ochoa-Rodriguez, S. Gires, A. van Assel, J. Ichiba, A. Kroll, S. Wang, L. Tchiguirinskaia, I. Schertzer, D. Willems, P. Faculty Civil Engineering and Geosciences Department Water Management Date 2015-12-31 Abstract Cities are particularly vulnerable to rainfall-generated floods that are typically characterised by their rapid onset and localised nature. This implies that precipitation and catchment information need to be available at high resolution to reliably predict hydrological response and potential flooding. On the contrary, urban areas constitute a major knowledge gap as most flood risk studies have concentrated on natural basins and records of rain gauges and water level gauges in cities are scarce. While increase in intense precipitation as a result of climate change is expected in many areas around the world, it is at present not possible to assess how this will affect urban pluvial flood risk. Collection of reliable, high resolution data in cities needs to start urgently to build up datasets in support of urban flood risk assessment and to enable detection of changes in flood risk whether these are induced by climate change, urbanisation or other future developments. This study shows how implementation of polarimetric X-band radar can contribute to filling the knowledge gap of flood risk quantification in cities. To reference this document use: http://resolver.tudelft.nl/uuid:f9d77304-60c2-4e61-9c42-06c889c7e270 Publisher International Union of Geodesy and Geophysics Source Proceedings of the 26th IUGG General Assembly, Prague (Czech Republic), June 22-July 2, 2015; Authors version Part of collection Institutional Repository Document type conference paper Rights (c) 2015 The Authors Files PDF 323621.pdf 638.47 KB Close viewer /islandora/object/uuid:f9d77304-60c2-4e61-9c42-06c889c7e270/datastream/OBJ/view