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Water 2017, 9(2), 71; doi:10.3390/w9020071

Integrating Local Scale Drainage Measures in Meso Scale Catchment Modelling

Institute of River and Coastal Engineering, Hamburg University of Technology, Denickestrasse 22, 21073 Hamburg, Germany
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Academic Editors: Zoran Vojinovic and Michael B. Abbott
Received: 12 September 2016 / Revised: 23 December 2016 / Accepted: 30 December 2016 / Published: 25 January 2017
(This article belongs to the Special Issue Hydroinformatics and Urban Water Systems)
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Abstract

This article presents a methodology to optimize the integration of local scale drainage measures in catchment modelling. The methodology enables to zoom into the processes (physically, spatially and temporally) where detailed physical based computation is required and to zoom out where lumped conceptualized approaches are applied. It allows the definition of parameters and computation procedures on different spatial and temporal scales. Three methods are developed to integrate features of local scale drainage measures in catchment modelling: (1) different types of local drainage measures are spatially integrated in catchment modelling by a data mapping; (2) interlinked drainage features between data objects are enabled on the meso, local and micro scale; (3) a method for modelling multiple interlinked layers on the micro scale is developed. For the computation of flow routing on the meso scale, the results of the local scale measures are aggregated according to their contributing inlet in the network structure. The implementation of the methods is realized in a semi-distributed rainfall-runoff model. The implemented micro scale approach is validated with a laboratory physical model to confirm the credibility of the model. A study of a river catchment of 88 km2 illustrated the applicability of the model on the regional scale. View Full-Text
Keywords: urban drainage; multiscale hydrologic modelling; semi-distributed modelling; GIS based modelling; SUDS; LID; WSUD & BMPs; model implementation; model validation urban drainage; multiscale hydrologic modelling; semi-distributed modelling; GIS based modelling; SUDS; LID; WSUD & BMPs; model implementation; model validation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hellmers, S.; Fröhle, P. Integrating Local Scale Drainage Measures in Meso Scale Catchment Modelling. Water 2017, 9, 71.

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