BED MORPHOLOGY OF THE KOSI RIVER, GANGETIC PLAINS-中国期刊网

摘要 Amathematicalmodelforsimulatingmorphologicalchangesinspaceandtimeofthe124kmlongalluvialreachoftheKosiRiverbasedonthedataintheperiod1968-79isdeveloped.Equationsareobtainedtodescribethechangesofstreambedparameterssuchasminimumbedlevel,riverwidthandmaximumriverdepth.Fouriersineseriesareusedtofittherivercross-sectionsoverthestudiedreachfordifferentyears.Thegeneraltrendofastreamcross-sectioncanbemodeledsatisfactorilywiththeFouriersineseries.Temporalvariationsinbedlevelandwidthoftheriverhavetimeperiodsofabout7yearand3.2-4.3years,respectively,andarecontrolledbymeanannualdischargewithatimeperiodof13.9years.

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BED MORPHOLOGY OF THE KOSI RIVER, GANGETIC PLAINS

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BED MORPHOLOGY OF THE KOSI RIVER, GANGETIC PLAINS

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