Setup for Scenario-free Modelling of Urban Flood Risk in Non-stationary Climate and Urban Development Conditions

Roland Löwe, Christian Urich, Murat Kulahci, Mohanasundar Radhakrishnan, Ana Deletic, Karsten Arnbjerg-Nielsen

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Abstract

An early flood warning system has been developed for urban catchments and is currently running in online operation in Copenhagen. The system is highly dependent on the quality of rainfall forecast inputs. An investigation of precipitation inputs from Radar Nowcast (RN), Numerical Weather Prediction (NWP) with assimilation of radar and cloud data (RA3), and Ensemble NWP with 25 members (S05) is conducted by comparing against rain gauge measurements and flood extent. Despite lower spatial and temporal resolution, the ensemble product seems promising for forecasting extreme events. A combination of the three forecast products is expected to yield the optimal input for flood warning.
Original languageEnglish
Publication date2017
Number of pages4
Publication statusPublished - 2017
Event14th IWA/IAHR International Conference on Urban Drainage 2017 - Prague Congress Centre, Prague, Czech Republic
Duration: 10 Sep 201715 Sep 2017
http://www.icud2017.org/

Conference

Conference14th IWA/IAHR International Conference on Urban Drainage 2017
LocationPrague Congress Centre
CountryCzech Republic
CityPrague
Period10/09/201715/09/2017
Internet address

Cite this

Löwe, R., Urich, C., Kulahci, M., Radhakrishnan, M., Deletic, A., & Arnbjerg-Nielsen, K. (2017). Setup for Scenario-free Modelling of Urban Flood Risk in Non-stationary Climate and Urban Development Conditions. Abstract from 14th IWA/IAHR International Conference on Urban Drainage 2017, Prague, Czech Republic.