Print Email Facebook Twitter Weather radar for urban hydrological applications: Lessons learnt and research needs identified from 4 pilot catchments in North-West Europe Title Weather radar for urban hydrological applications: Lessons learnt and research needs identified from 4 pilot catchments in North-West Europe Author Ten Veldhuis, J.A.E. Ochoa-Rodriguez, S. Bruni, G. Gires, A. Van Assel, J. Wang, L. Reinoso Rodinel, R. Kroll, S. Schertzer, D. Onof, C. Willems, P. Faculty Civil Engineering and Geosciences Department Water Management Date 2014-04-07 Abstract This study investigates the impact of rainfall estimates of different spatial resolutions on the hydraulic outputs of the models of four of the EU RainGain project’s pilot locations (the Cranbrook catchment (UK), the Herent catchment (Belgium), the Morée-Sausset catchment (France) and the Kralingen District (The Netherlands)). Two storm events, one convective and one stratiform, measured by a polarimetric X-band radar located in Cabauw (The Netherlands) were selected for analysis. The original radar estimates, at 100 m and 1 min resolutions, were aggregated to a spatial resolution of 1000 m. These estimates were then applied to the high-resolution semi-distributed hydraulic models of the four urban catchments, all of which have similar size (between 5 and 8 km2), but different morphological, hydrological and hydraulic characteristics. When doing so, methodologies for standardising rainfall inputs and making results comparable were implemented. The response of the different catchments to rainfall inputs of varying spatial resolution is analysed in the light of model configuration, catchment and storm characteristics. Rather surprisingly, the results show that for the two events under consideration the spatial resolution (i.e.100 m vs 1000 m) of rainfall inputs does not have a significant influence on the outputs of urban drainage models. The present study will soon be extended to more storms as well as model structures and resolutions, with the final aim of identifying critical spatial-temporal resolutions for urban catchment modelling in relation to catchment and storm event characteristics To reference this document use: http://resolver.tudelft.nl/uuid:e80ea693-8b8a-4948-8336-3964e32d9fe5 Publisher ACSE Source Proceedings of the International Symposium Weather Radar and Hydrology, Washington, April 7-10, 2014; Authors version Part of collection Institutional Repository Document type conference paper Rights (c) 2014 The Authors Files PDF 305588.pdf 1.14 MB Close viewer /islandora/object/uuid:e80ea693-8b8a-4948-8336-3964e32d9fe5/datastream/OBJ/view