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dc.contributor.authorYu, Bofuen_US
dc.date.accessioned2017-04-04T17:39:26Z
dc.date.available2017-04-04T17:39:26Z
dc.date.issued2000en_US
dc.date.modified2010-07-06T06:58:21Z
dc.identifier.issn00221694en_US
dc.identifier.doi10.1016/S0022-1694(00)00223-7en_AU
dc.identifier.urihttp://hdl.handle.net/10072/3087
dc.description.abstractFor medium-sized runoff plots to small watersheds, it is a common practice to record water levels in a flume or upstream of a weir and to convert the data on water level into flow hydrographs via a rating curve. The flow hydrograph can be integrated using the trapezoidal rule to determine the runoff amount for storm events. It can be shown that such an approach to runoff calculation involves a systematic error, always resulting in an over-estimation of the runoff amount. The relative error lies in the range from 0 to (b-1)/2, where b is the exponent of the power function describing the rating curve. A case study using the data for 34 storm events with runoff amount varying from 2.7 to 186 mm showed that the average relative error was 8.6% and the maximum relative error can be as high as 23%. Formulas with essentially no additional computational cost are recommended to calculate the runoff amount exactly.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevier Scienceen_US
dc.publisher.placeNetherlandsen_US
dc.publisher.urihttp://www.elsevier.com/wps/find/journaldescription.cws_home/503343/description#descriptionen_AU
dc.relation.ispartofpagefrom258en_US
dc.relation.ispartofpageto262en_US
dc.relation.ispartofjournalJournal of Hydrologyen_US
dc.relation.ispartofvolume233en_US
dc.subject.fieldofresearchHISTORY AND ARCHAEOLOGYen_US
dc.subject.fieldofresearchcode210000en_US
dc.titleA systematic over-estimation of Flowsen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.date.issued2000
gro.hasfulltextNo Full Text


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