《The Roles of Different Mechanisms Related to the Tide-induced Fronts in the Yellow Sea in Summer》.pdf

ADVANCESIN ATMOSPHERICSCIENCES，VOL．31，SEPTEM BER2014，1079-1089 TheRolesofDi圩erentM echanismsRelatedtotheTide．inducedFronts intheYellow SeainSumm er REN Shihe1 XIEJiping1 andZHUJiang2 ， ， InternationalCenterforClimateandEnvironmentSciences，InstituteofAtmosphericPhysics ChineseAcademyofSciences,Beijing100029 InstituteofAtmosphericPhysics，ChineseAcademyofSciences，Beijing100029 0UniversityofChineseAcademyofSciences，Beijing100049 (Received2December2013；revised10January2014；accepted15January2014) ABSTRACT Insummer,theYellow SeaCold、vaterMassfYSCWM isastablewatermassoflow temperature1yingatthebottom of htecentralYellow Sea(YS)．Itisfringedbysometypicaltidalfronts，whichseparatedeep，stratifiedwaterontheoffshore siderfom thewell—mixed，shallowwateronhteinshoreside．Threestrikingfroms—SubeiBankFront(SBF)，Shnadong PeninsulaFront(SPF)，nadMok0oFront(MKF：arfontoffthesouthwesterntipofhteKorena Peninsula)—-bavebeeniden— tiffedbyvariousstudiesrfom bothsatelliteobservationsandmode1results．Tideplaysna importnatroleinhteformationnad maintennaceoftheserfonts．However,itisstillamatterofdebateastotheroleshtesetwokindsofmechanismsofupwelling andtidalmixingplay,nadhow importnacehteyraeinthemaintenanceprocessesoftheabovehtreerfonts．Basinganested high．resolutionmodelHYCOM (theHybridCoordinateOceanMode1)，thisstudyfocusesonhtedifferentmechanismsof tidaleffectsonthethemr alrfontsintheYSinsummertime．Throughcompraativeexperimentswithnadwihtouttidal forcing， theresultsindicatethattheMKFismainlydrivenbytide—inducedupwelling．FortheSPF．tidalmixingishtedom