简介：Watermotioninestuarinewatersistheresultoftheactionofvariousdynamicfactors.Firstly,basedonthehydrodynamiccharacteristicsinestuarinewaters,neglectingthenonlineareffectsofvariousflowhydrodynamicfactors,thelogarithmvelocityprofileoftidalcurrentandthecubicvelocityprofileofHansenandRattray(1965)madeforlinearsuperpositionatasenseoffirstorder,anewmodelforvelocityprofileinestuarinewatersisestablished.Then,byintroducingtheleastsquaremethodcombinationofenumeration,thevelocityprofiledataofwind-drivencurrentmeasuredinthelaboratoryandthatobservedattheNorthandtheSouthBranchesoftheYangtzeEstuaryareverifiedandcomparedwithotherformulas,allwithsatisfactoryresults.Theresultsshowthatthenewmodelnotonlyconsiderstheinfluencesofvariousdynamicfactors,suchastide,windforce,run-offanddensitypressurewithhighaccuracy,butalsoprovidesreasonableboundaryconditionsonthebottomforhydrodynamicsnumericalsimulationinestuarinewaters.Thereby,theaccuracyandcredibilityofnumericalcomputationandpredictionofwaterflowareimproved.Theresearchistheoreticallyimportantfortheestuarinehydrodynamics.