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dc.contributor.authorPons, Vincent
dc.contributor.authorMuthanna, Tone Merete
dc.contributor.authorSivertsen, Edvard
dc.contributor.authorBertrand-Krajewski, Jean-Luc
dc.date.accessioned2022-03-03T14:55:22Z
dc.date.available2022-03-03T14:55:22Z
dc.date.created2022-02-08T08:26:11Z
dc.date.issued2022
dc.identifier.issn0273-1223
dc.identifier.urihttps://hdl.handle.net/11250/2982898
dc.description.abstractHistorically, green infrastructure for stormwater management has been event-based designed. This study aims to realign the green infrastructure design strategies with principles for robust decision making, through the example of green roofs design with the variational method and exemplified using the Norwegian context of the 3-step approach (3SA) for stormwater management. The 3SA consists of planning solutions to handle day-to-day rain at site scale through infiltration (step 1) and detention (step 2), and extreme events with safe floodways (step 3). An innovative framework based on downscaling of rainfall timeseries is suggested as follows: (i) long duration continuous simulation for retention variation and day-to-day discharge, corresponding to step 1 in the 3SA; (ii) intensive sampling of local extreme events to estimate reliability and robustness of solutions, corresponding to steps 2 and 3 in the 3SA. Comparing the traditional variational method to Highly-Informed-Design-Evaluation-Strategy (HIDES), it was found that the variational method possibly leads to incorrect decisions while the suggested novel approach was found to give more informed and reliable results by suggesting a design based on both operating mode and failure mode. It allows to embed solutions within the urban water system by facilitating the link between the steps of the 3SA. Such a framework was found to be data-wise applicable in the Norwegian context.
dc.language.isoeng
dc.publisherIWA Publishing
dc.rightsCC BY NC ND 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectContinuous simulation
dc.subjectEvent-based simulation
dc.subjectGreen infrastructure design
dc.subjectRobust decision making
dc.subjectTemporal downscaling
dc.titleRevising Green roof design methods with downscaling model of rainfall time series
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
dc.rights.holder© 2022 The Authors.
dc.subject.nsiVDP::Teknologi: 500
dc.source.journalWater Science and Technology
dc.identifier.doi10.2166/wst.2022.023
dc.identifier.cristin1998848
dc.relation.projectNorges forskningsråd: 237859
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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CC BY NC ND 4.0
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