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dc.contributor.authorBasnayaka, Amila
dc.contributor.authorSarukkalige, Priyantha
dc.contributor.editorVanissom Vimonsatit, Amarjit Singh and Siamak Yazdani
dc.date.accessioned2017-01-30T11:06:20Z
dc.date.available2017-01-30T11:06:20Z
dc.date.created2013-01-31T20:00:26Z
dc.date.issued2012
dc.identifier.citationBasnayaka, Amila Prasad and Sarukkalige, Priyantha Ranjan. 2012. Sensitivity Analysis of Catchment Characteristics in Urban Stormwater Management Modeling, in Vimonsatit, V. and Singh, A. and Yazdani, S. (ed), Research, Development, and Practice in Structural Engineering and Construction, The 1st Australasia and South East Asia Conference in Structural Engineering and Construction (ASEA-SEC-1), Nov 28-Dec 2 2012, pp. 775-779. Perth, Western Australia: Research Publishing Services.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/8379
dc.description.abstract

Numerical stormwater management modeling helps to understand the urban hydrological catchment behavior. Urban hydrological modeling is a complex process, when considering all the urban hydrological catchment characteristics. Selecting and/or prioritizing catchment characteristics according to their sensitivity on modeling results helps to generate simplified and accurate catchment models. Sensitivities of selected catchment characteristics depend on land use change have been analyzed by hydrological modeling of an urban catchment. Changes to surface roughness coefficients increased the modeled post development peak flow up to 10.3% and 15.5% in 1 year and 100 year ARI events. Changing of infiltration parameters caused to 8.8% and 0.3% changes in peak flows under two scenarios. These results show that the sensitivity of parameters associated with the portion of impervious land use is more significant than the characteristics associated with the pervious land use portion. Results have suggested that the overall land use change is more sensitive to the modeling results of minor rainfall events than the results of major rainfall events. Results will help to decide most sensitive catchment characteristics and applicable range of their values, when modeling similar urban catchments.

dc.publisherResearch Publishing Services
dc.subjectUrban hydrology
dc.subjectSensitivity analysis
dc.subjectCatchment characteristics
dc.subjectStormwater management
dc.subjectHydrological modeling
dc.titleSensitivity Analysis of Catchment Characteristics in Urban Stormwater Management Modeling
dc.typeConference Paper
dcterms.source.startPage775
dcterms.source.endPage779
dcterms.source.titleProceedings of the 1st Australasia and South East Asia Conference in Structural Engineering andConstruction (ASEA-SEC-1)
dcterms.source.seriesProceedings of the 1st Australasia and South East Asia Conference in Structural Engineering andConstruction (ASEA-SEC-1)
dcterms.source.isbn978-981-07-3678-1
dcterms.source.conferenceThe 1st Australasia and South East Asia Conference in Structural Engineering andConstruction (ASEA-SEC-1)
dcterms.source.conference-start-dateNov 28 2012
dcterms.source.conferencelocationPerth, Western Australia
dcterms.source.placeSingapore
curtin.department
curtin.accessStatusFulltext not available


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