首页> 外文会议>Coastal sediments'03: crossing disciplinary boundaries >TEMPORALu001fANDu001fSPATIALu001fVARIATIONSu001fOFu001fSURF-ZONEu001fCURRENTSu001fANDu001fSUSPENDED-SEDIMENTu001fCONCENTRATION
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TEMPORALu001fANDu001fSPATIALu001fVARIATIONSu001fOFu001fSURF-ZONEu001fCURRENTSu001fANDu001fSUSPENDED-SEDIMENTu001fCONCENTRATION

机译:时间 u001fAND u001fSPATIAL u001fVARIATIONS u001fOF u001fSURF-ZONE u001fCURRENTS u001fAND u001fSUSPENDED-SEDIMENT u001f浓度

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Thisu001fstudyu001fwasu001fconductedu001fatu001ftheu001fU.S.u001fArmyu001fEngineeru001fResearchu001fandu001fDevelopmentu001frnCenter’su001f Large-scaleu001f Sedimentu001f Transportu001f Facilityu001f (LSTF).u001f u001f Twou001f unidirectional,u001f long-crestedu001frnirregularu001fwaveu001fconditionsu001foveru001ftheu001fmovableu001fbedu001fwereu001fexamined.u001fu001fWaves,u001fandu001fprofilesu001fofu001fcurrentu001frnandu001fsedimentu001fconcentrationu001fwereu001fmeasuredu001fatu001fvariousu001fsurf-zoneu001flocations.u001fu001fBothu001fcurrentsu001fandu001frnsedimentu001fconcentrationsu001fexhibitu001fgreatu001ftemporalu001fandu001fspatialu001fvariations.u001fu001fTheu001fvariationu001fpatternsu001fofu001frntheu001flongshoreu001fandu001fcross-shoreu001fcurrent,u001fandu001fsedimentu001fconcentrationu001f areu001f substantiallyu001f different.u001fu001frnCautionu001fshouldu001fbeu001fexercisedu001fwhenu001faveragingu001ftheseu001fparametersu001foveru001ftimeu001fandu001fspace.u001frnTemporalu001fvariationsu001fofu001flongshoreu001fcurrentu001fwereu001frelativelyu001fsmallu001facrossu001fmostu001fofu001ftheu001fsurfu001fzone.u001fu001frnCross-shore-currentu001fvariationsu001fwereu001fdominatedu001fbyu001f theu001fwaveu001fmotion.u001f u001fSediment-concentrationu001frnvariationu001funderu001ftheu001firregularu001fwavesu001flacksu001fapparentu001fperiodicity.u001fu001fTime-averagedu001flongshore-currentu001frnprofilesu001fwereu001flogarithmicu001finu001fshape.u001fu001fDepth-averagedu001flongshoreu001fcurrentu001fmatchedu001fwellu001fwithu001ftheu001frncurrentu001fmeasuredu001fatu001fanu001felevationu001fofu001f1/3u001fwateru001fdepthu001ffromu001ftheu001fbed.u001fu001fTime-averagedu001fcross-shoreu001frncurrentu001fprofilesu001fdemonstrateu001fparabolicu001fshapes.u001fu001fSedimentu001fconcentrationu001fdecreasedu001frapidlyu001fupwardu001frnacrossu001fmostu001fofu001ftheu001fsurfu001fzoneu001fexceptu001fatu001ftheu001fplungingu001fbreaker-lineu001fwhereu001frelativelyu001fhomogeneousu001frnconcentrationu001f wasu001f measured.u001f u001f Depth-averagedu001f sedimentu001f concentrationu001f roughlyu001f equaledu001f theu001frnconcentrationu001fmeasuredu001fatu001fanu001felevationu001fofu001f1/5u001fwateru001fdepthu001ffromu001ftheu001fbed.u001frnTime-averagedu001f longshoreu001f sedimentu001f fluxu001f canu001f beu001f approximatedu001f fromu001f theu001f productu001f ofu001f timeaveragedrnu001fprofilesu001fofu001flongshoreu001fcurrentu001fandu001fsedimentu001fconcentration.u001fu001fAccurateu001festimatesu001fofu001fcrossshorernu001fsedimentu001fflux,u001fhowever,u001fcouldu001fnotu001fbeu001fobtainedu001ffromu001ftheu001fproductu001fofu001ftime-averagedu001fcurrentu001frnandu001fconcentration.
机译:Thisu001fstudyu001fwasu001fconductedu001fatu001ftheu001fU.S.u001fArmyu001fEngineeru001fResearchu001fandu001fDevelopmentu001frnCenter'su001f大scaleu001f Sedimentu001f Transportu001f Facilityu001f(L-STF).u001f u001f Twou001f单向,u001f长crestedu001frnirregularu001fwaveu001fconditionsu001foveru001ftheu001fmovableu001fbedu001fwereu001fexamined.u001fu001fWaves,u001fandu001fprofilesu001fofu001fcurrentu001frnandu001fsedimentu001fconcentrationu001fwereu001fmeasuredu001fatu001fvariousu001fsurf-zoneu001flocations.u001fu001fBothu001fcurrentsu001fandu001frnsedimentu001fconcentrationsu001fexhibitu001fgreatu001ftemporalu001fandu001fspatialu001fvariations.u001fu001fTheu001fvariationu001fpatternsu001fofu001frntheu001flongshoreu001fandu001fcross-shoreu001fcurrent,u001fandu001fsedimentu001fconcentrationu001f areu001f substantiallyu001f different.u001fu001frnCautionu001fshouldu001fbeu001fexercisedu001fwhenu001faveragingu001ftheseu001fparametersu001foveru001ftimeu001fandu001fspace.u001f rnTemporalu001fvariationsu001fofu001flongshoreu001fcurrentu001fwereu001frelativelyu001fsmallu001facrossu001fmostu001fofu001ftheu001fsurfu001fzone.u001fu001frnCross-岸currentu001fvariationsu001fwereu001fdominatedu001fbyu001f theu001fwaveu001fmotion.u001f u001fSediment-concentrationu001frnvariationu001funderu001ftheu001firregularu001fwavesu001flacksu001fapparentu001fperiodicity.u001fu001fTime-averagedu001flongshore-currentu001frnprofilesu001fwereu001flogarithmicu001finu001fshape.u001fu001fDepth-averagedu001flongshoreu001fcurrentu001fmatchedu001fwellu001fwithu001ftheu001frncurrentu001fmeasuredu001fatu001fanu001felevationu001fofu001f1 / 3u001fwateru001fdepthu001ffromu001ftheu001fbed.u001fu001fTime-averagedu001fcross-shoreu001frncurrentu001fprofilesu001fdemonstrateu001fparabolicu001fshapes.u001fu001fSedimentu001fconcentrationu001fdecreasedu001frapidlyu001fupwardu001frnacrossu001fmostu001fofu001ftheu001fsurfu001fzoneu001fexceptu001fatu001ftheu001fplungingu001fbreaker-lineu001fwhereu001frel ativelyu001fhomogeneousu001frnconcentrationu001f wasu001f measured.u001f u001f深度averagedu001f sedimentu001f concentrationu001f roughlyu001f equaledu001f theu001frnconcentrationu001fmeasuredu001fatu001fanu001felevationu001fofu001f1 / 5u001fwateru001fdepthu001ffromu001ftheu001fbed.u001frnTime-averagedu001f longshoreu001f sedimentu001f fluxu001f canu001f beu001f approximatedu001f fromu001f theu001f productu001f ofu001f timeaveragedrnu001fprofilesu001fofu001flongshoreu001fcurrentu001fandu001fsedimentu001fconcentration.u001fu001fAccurateu001festimatesu001fofu001fcrossshorernu001fsedimentu001fflux,u001fhowever,u001fcouldu001fnotu001fbeu001fobtainedu001ffromu001ftheu001fproductu001fofu001ftime-averagedu001fcurrentu001frnandu001fconcentration。

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