Vesuviano, G., Sonnenwald, F. and Stovin, V.R. orcid.org/0000-0001-9444-5251 (2013) A two-stage storage routing model for green roof runoff detention. Water Science and Technology, 69.6. pp. 1191-1197. ISSN 0273-1223
Abstract
Green roofs have been adopted in urban drainage systems to control the total quantity and volumetric flow rate of runoff. Modern green roof designs are multi-layered, their main components being vegetation, substrate and, in almost all cases, a separate drainage layer. Most current hydrological models of green roofs combine the modelling of the separate layers into a single process; these models have limited predictive capability for roofs not sharing the same design. An adaptable, generic, two-stage model for a system consisting of a granular substrate over a hard plastic “egg box”-style drainage layer and fibrous protection mat is presented. The substrate and drainage layer/protection mat are modelled separately by previously verified sub-models. Controlled storm events are applied to a green roof system in a rainfall simulator. The time-series modelled runoff is compared to the monitored runoff for each storm event. The modelled runoff profiles are accurate (mean Rt 2 = 0.971), but further characterization of the substrate component is required for the model to be generically applicable to other roof configurations with different substrate.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013 IWA Publishing. This is an author produced version of a paper subsequently published in Water Science and Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Green roof; modelling; substrate; growing medium; drainage layer; storage routing; reservoir routing |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Sep 2016 10:51 |
Last Modified: | 28 Mar 2018 20:36 |
Published Version: | http://dx.doi.org/10.2166/wst.2013.808 |
Status: | Published |
Publisher: | IWA Publishing |
Refereed: | Yes |
Identification Number: | 10.2166/wst.2013.808 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:79783 |