Print Email Facebook Twitter Critical scales to explain urban hydrological response Title Critical scales to explain urban hydrological response: An application in Cranbrook, London Author Cristiano, E. (TU Delft Sanitary Engineering) ten Veldhuis, Marie-claire (TU Delft Water Resources) Gaitan Sabogal, S. (TU Delft Water Resources; Environmental Analytics) Ochoa Rodriguez, Susana (RPS Water) van de Giesen, N.C. (TU Delft Water Resources) Date 2018-04-23 Abstract Rainfall variability in space and time, in relation to catchment characteristics and model complexity, plays an important role in explaining the sensitivity of hydrological response in urban areas. In this work we present a new approach to classify rainfall variability in space and time and we use this classification to investigate rainfall aggregation effects on urban hydrological response. Nine rainfall events, measured with a dual polarimetric X-Band radar instrument at the CAESAR site (Cabauw Experimental Site for Atmospheric Research, NL), were aggregated in time and space in order to obtain different resolution combinations. The aim of this work was to investigate the influence that rainfall and catchment scales have on hydrological response in urban areas. Three dimensionless scaling factors were introduced to investigate the interactions between rainfall and catchment scale and rainfall input resolution in relation to the performance of the model. Results showed that (1) rainfall classification based on cluster identification well represents the storm core, (2) aggregation effects are stronger for rainfall than flow, (3) model complexity does not have a strong influence compared to catchment and rainfall scales for this case study, and (4) scaling factors allow the adequate rainfall resolution to be selected to obtain a given level of accuracy in the calculation of hydrological response. To reference this document use: http://resolver.tudelft.nl/uuid:8df6282e-191f-4b86-84d7-69f278906311 DOI https://doi.org/10.5194/hess-22-2425-2018 ISSN 1027-5606 Source Hydrology and Earth System Sciences, 22 (4), 2425-2447 Part of collection Institutional Repository Document type journal article Rights © 2018 E. Cristiano, Marie-claire ten Veldhuis, S. Gaitan Sabogal, Susana Ochoa Rodriguez, N.C. van de Giesen Files PDF hess_22_2425_2018.pdf 5.79 MB Close viewer /islandora/object/uuid:8df6282e-191f-4b86-84d7-69f278906311/datastream/OBJ/view