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dc.contributor.authorChang, C.P.
dc.dateOct 01, 1985en_US
dc.date.accessioned2018-09-27T00:06:39Z
dc.date.available2018-09-27T00:06:39Z
dc.date.issued1985-10
dc.identifier.citationNAS-NRC Proceedings of the First National Workshop on the Global Weather Experiment, Vol. 2, Pt. 2; p. p 543-560en_US
dc.identifier.other19860014681
dc.identifier.urihttp://hdl.handle.net/10945/60104
dc.identifier.urihttps://ntrs.nasa.gov/search.jsp?R=19860014681
dc.descriptionApproved for public release, distribution unlimiteden_US
dc.description.abstractPre-FGGE and FGGE/MONEX data are used to identify short term midlatitude tropical and longitudinal interactions during the winter monsoon. These interactions occur as cold surges, which develop over the East Asian continent and penetrate deep into the tropics with fast gravity wave speed. The observed interactions that occur after a surge include cyclogenesis and enhanced convection in the equatorial region, feedback from equatorial convection to midlatitude circulation systems, tropical east-west (Walker) circulations, and cross-equatorial influence. These interactions are also studied theoretically by analytical solutions of linearized shallow water equations. Response to transient forcing (monsoon surges) are mainly in Rossby and Kelvin modes. When the forcing time scale is short, significant gravity modes are also excited. The responses closely resemble observed winter monsoon flow. Responses to stationary forcing show that deep (barotropic) motions propagate energy away into high latitudes and that shallow (baroclinic) motions are trapped around the equator. It is shown that the barotropic teleconnection-type response to tropical sources found in previous numerical studies was due to the specified vertical wind shear and surface friction.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleMidlatitude tropical interactions during winteren_US
dc.typeConference Paper
dc.contributor.corporateUnspecified Center
dc.subject.authorGLOBAL ATMOSPHERIC RESEARCH PROGRAMen_US
dc.subject.authorGRAVITY WAVESen_US
dc.subject.authorMONSOONSen_US
dc.subject.authorTROPICAL METEOROLOGYen_US
dc.subject.authorWAVE INTERACTIONen_US
dc.subject.authorWINTERen_US
dc.subject.authorATMOSPHERIC CIRCULATIONen_US
dc.subject.authorBAROCLINIC INSTABILITYen_US
dc.subject.authorBAROTROPIC FLOWen_US
dc.subject.authorCOLD FRONTSen_US
dc.subject.authorCYCLONESen_US
dc.subject.authorEQUATORIAL ATMOSPHEREen_US
dc.subject.authorTELECONNECTIONS (METEOROLOGY)en_US
dc.subject.authorWIND SHEARen_US


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