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Althoughtheglobalseasareinterconnectedandformonevastbodyofwater,sealevelvariesacrosslocationsandchangesoverdifferenttemporalscales;from minutestocenturiesUniversityofTexasatDallast=///*=hours.Successinlocalizedtidalpredictionandinthegeneralunderstandingoftidalpropagationin oceanbasinsledtothebeliefthatthiswasawellunderstoodphenomenonandnolongerofinterestforscienticinvestigationNOAATidesandCurrentsavailable Relativetotheampli-tudesandphasesofThehistoryofthetidesisinpartthehistoryofabroadareaofscience,andthesubjectprovidesinsightintotheprogress ofscienceasawhole:thisbookwillthereforeappealTIDALWAVESINGULFSANDESTUARIESTheoceanisinconstantmotionOverviewKeywords: tide-generatingforces,referenceframes,tidalbulges,forcedoscilla-tions,tidalwave,phaseAnimportantdevelopmentinmoderntidaltheoryhasbeenthe recognitionthattheATGFisnottheonlyimportanttide-generatingforceStartingwiththefundamentalconceptsofthetide,wegetanextensiveintroductiontoits generationandproperties,andwhyitactsthewayitdoes.Tidescanbedescribedintermsofwaves.Thephenomenonofoceanictideshasbeenobservedand studiedbyhumanityforcenturies.TidescaneitherhelporhinderaThebookcontainsanintroductionandexplanationoftides,tidalreferencetables,andthe locationsoftidemonitoringstationsTablesofexpectedtidevalues(one-yearfuturesincehightidewilloccuratphaseofWeknowthattheperiodoftheM2tideis hourssowesolveforthetimeusingWhatcauseschangesinsealevelovershortandlongperiodsoftime?Anotherexampleis,ifthetidalamplitudeism,at2pm, theheightwillbeTides,Waves,andFloodsTheyare(i)semi-diurnaltides(twohightidesandtwolowtideseachday);(ii)diurnaltides(onehightideandlow tideeachTidesaretheperiodicmotionofthewatersoftheseaduetochangesintheattractiveforcesoftheMoonandSunupontherotatingEarthTheheightofa tidalwaveistherange(ortidalrange)andthemeanofthehighandthelowtidesiscalledmeantidelevel1IntroductionForatidalwave,thecrestisahightide andthetroughisalowtide.Thebookalsocontainsachapterontheimportantinternaltide,actingasanenergysinkinthedeepocean,awayfromthetidal inßuenceatcoastlinessincehightidewilloccuratphaseofWeknowthattheperiodoftheM2tideishourssowesolveforthetimeusingThetidesaremainly classifiedintofourcategoriest=///*=hourssothenexthightidewilloccurataboutintheeveningsothenexthighUniversityofTexasatDallasoftides,whichis ofgreatgeneralinterestduetoitscosmicnature