{"612639":{"#nid":"612639","#data":{"type":"event","title":"Uncovering the Extratropical Pacemaker Effect on El Nino","body":[{"value":"\u003Ch3\u003E\u003Cstrong\u003EDillon Amaya\u003C\/strong\u003E\u003C\/h3\u003E\r\n\r\n\u003Cp\u003EGraduate Researcher at Scripps Institution of Oceanography\u003Cbr \/\u003E\r\n\u003Ca href=\u0022mailto:djamaya@ucsd.edu?subject=Your%20seminar%20at%20Georgia%20Tech\u0022\u003Edjamaya@ucsd.edu\u003C\/a\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003ESchedule of Visit \u003Ca href=\u0022https:\/\/docs.google.com\/spreadsheets\/d\/1JUPndcvx743H7QnRr0aqHCL3dUUf8kFYEIX0bcfsll8\/edit?usp=sharing\u0022\u003Ehere\u003C\/a\u003E\u003C\/p\u003E\r\n\r\n\u003Ch3\u003E\u003Cstrong\u003EResearch Interests\u003C\/strong\u003E\u003C\/h3\u003E\r\n\r\n\u003Cul\u003E\r\n\t\u003Cli\u003ETropical climate variability on seasonal, interannual, and decadal timescales and its impact on higher latitudes.\u003C\/li\u003E\r\n\t\u003Cli\u003EEl Ni\u0026ntilde;o and its teleconnections.\u003C\/li\u003E\r\n\t\u003Cli\u003EClimate mode extremes and their predictability.\u003C\/li\u003E\r\n\u003C\/ul\u003E\r\n\r\n\u003Ch3\u003E\u003Cstrong\u003EDegrees\u003C\/strong\u003E\u003C\/h3\u003E\r\n\r\n\u003Cul\u003E\r\n\t\u003Cli\u003EB.S., Meteorology, Texas A\u0026amp;M University\u003C\/li\u003E\r\n\t\u003Cli\u003EM.S., Oceanography, Scripps Institution of Oceanography\u003C\/li\u003E\r\n\t\u003Cli\u003EPh.D., Oceanography, Scripps Institution of Oceanography (In Progress)\u003C\/li\u003E\r\n\u003C\/ul\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EWill present a seminar entitled:\u003C\/p\u003E\r\n\r\n\u003Ch2\u003E\u003Cstrong\u003EUncovering the Extratropical Pacemaker Effect on ENSO\u003C\/strong\u003E\u003C\/h2\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Ch3\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/h3\u003E\r\n\r\n\u003Cdiv\u003E\r\n\u003Cp\u003EThe Pacific Meridional Mode (PMM) is a coupled mode of climate variability found in the subtropical North and South Pacific that integrates extratropical surface wind variability into a propagating pattern of SST\/wind anomalies that stretches into the deep tropics. In recent years, many studies have indicated that the PMM can act as a precursor and predictor of the El Ni\u0026ntilde;o-Southern Oscillation (ENSO) due to this propagation; however, there has been little effort to put these extratropical-tropical interactions into the context of ENSO events in the historical record. To quantify the role of the extratropics in pacing the timing and magnitude of historical ENSO events, we use a fully-coupled climate model to produce an ensemble of North Pacific Ocean-Global Atmosphere (nPOGA) pacemaker simulations, which are forced by the observed trajectory of North Pacific (\u0026gt;15\u02daN) SST anomalies in addition to historical radiative forcing. We are then able to utilize the ensemble mean of nPOGA to analyze the relationship between extratropical atmospheric variability, the PMM, and ENSO. We find that North Pacific SST variability accounts for approximately 16% of total ENSO variance, but can be a much larger contributor on an event-by-event basis. For example, nPOGA reproduces the complicated 2014-2016 ENSO cycle remarkably well. Our results illustrate the significant role of extratropical noise in pacing the initiation and magnitude of ENSO events and may improve the predictability of ENSO on seasonal timescales.\u003C\/p\u003E\r\n\u003C\/div\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"A seminar by Dillon Amaya Ocean Science and Engineering"}],"uid":"33273","created_gmt":"2018-10-11 19:43:49","changed_gmt":"2018-10-11 19:51:32","author":"Emanuele Di Lorenzo","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2018-10-16T12:00:00-04:00","event_time_end":"2018-10-16T13:00:00-04:00","event_time_end_last":"2018-10-16T13:00:00-04:00","gmt_time_start":"2018-10-16 16:00:00","gmt_time_end":"2018-10-16 17:00:00","gmt_time_end_last":"2018-10-16 17:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"hg_media":{"612641":{"id":"612641","type":"image","title":"Dillon Amaya","body":null,"created":"1539287376","gmt_created":"2018-10-11 19:49:36","changed":"1539287376","gmt_changed":"2018-10-11 19:49:36","alt":"","file":{"fid":"233209","name":"dillon-amaya.jpg","image_path":"\/sites\/default\/files\/images\/dillon-amaya.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/dillon-amaya.jpg","mime":"image\/jpeg","size":25023,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/dillon-amaya.jpg?itok=gqHUBXKk"}}},"media_ids":["612641"],"groups":[],"categories":[],"keywords":[{"id":"179341","name":"OSE Seminars"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"177814","name":"Postdoc"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Cstrong\u003EDaniela Estrada\u003C\/strong\u003E\u003Cbr \/\u003E\r\nProgram Coordinator for Ocean Science and Engineering\u003Cbr \/\u003E\r\n\u003Ca href=\u0022mailto:daniela.estrada@eas.gatech.edu?subject=Dillon%20Amaya%20Seminar\u0022\u003Edaniela.estrada@eas.gatech.edu\u003C\/a\u003E\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}