DEVELOPMENT AND APPLICATION OF AN EFFICIENT METHOD TO RIVER DISCHARGE MEASUREMENT-中国期刊网

摘要 Ahighlyefficientflowdischargemeasuringmethodwasproposedinthisstudy.EitherthetraditionalvelocimetersortheAcousticDopplerProfiler(ADP)canbeusedtomeasurethemaximumflowvelocity,Umaxatthey-axis(verticalpassingthroughthemaximumpointvelocityinachannelcrosssection).Themeanvelocityofthecrosssection(U)wascomputedbyφUmax,whereφwasestimatedfromthefielddatacollectedwiththecup-typecurrentmeterusingthe"two-pointmethod".Theflowdischargewasthencomputedbymultiplyingtheestimatedflowareawith(U).Incontrasttothetraditionalmethod,whereflowdepthandflowvelocitymeasurementsareneededforeachvertical,theproposedmethodhastheadvantagesofshortoperationtimeandhighaccuracy.Thesefeaturesareespeciallyimportantforthemeasurementofunsteadyflow.

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DEVELOPMENT AND APPLICATION OF AN EFFICIENT METHOD TO RIVER DISCHARGE MEASUREMENT

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DEVELOPMENT AND APPLICATION OF AN EFFICIENT METHOD TO RIVER DISCHARGE MEASUREMENT

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