A simple stochastic rainfall disaggregation scheme for urban drainage modelling

Zarris, D; Koutsoyiannis, D; Karavokiros, G

dc.contributor.author	Zarris, D	en
dc.contributor.author	Koutsoyiannis, D	en
dc.contributor.author	Karavokiros, G	en
dc.date.accessioned	2014-03-01T02:54:21Z
dc.date.available	2014-03-01T02:54:21Z
dc.date.issued	1998	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36834
dc.subject	IDF curves	en
dc.subject	Design storm approach	en
dc.subject.classification	Rain and rainfall	en
dc.subject.classification	Storms	en
dc.title	A simple stochastic rainfall disaggregation scheme for urban drainage modelling	en
heal.type	conferenceItem	en
heal.publicationDate	1998	en
heal.abstract	An alternative method to both the design storm approach and the continuous simulation of historic or synthetic storms is presented. The method is based on, and uses as the only input, the intensity-duration-frequency (IDF) curves of the particular urban catchment of interest. The main concept is to keep the design storm approach for the determination of the total characteristics of the design storm event, i.e. duration and depth extracted from the IDF curves of the particular region, and use a disaggregation technique to generate a ensemble of alternative hyetographs (instead of adopting a unique arbitrary design time profile). The stochastically generated hyetographs are then entered into a rainfall - runoff model and then routed through the sewer network in order to simulate the hydraulic performance of the sewer network. This enables the determination of the conditional distribution of the outflow peak, which can then be utilised for studying the design characteristics and the behaviour of the sewer network.	en
heal.journalName	4th International Conference on Developments in Urban Drainage Modelling	en