{"666893":{"#nid":"666893","#data":{"type":"event","title":"A Brazil Basin Reprise","body":[{"value":"\u003Cp\u003EThe School of Earth and Atmospheric Sciences presents Dr. Kurt Polzin, Woods Hole Oceanographic Institution\u003C\/p\u003E\r\n\r\n\u003Cp\u003EA Brazil Basin Reprise\u003C\/p\u003E\r\n\r\n\u003Cp\u003EA series of recent modeling studies (Drake et al. 2022, Ogden and Ferrari submitted, Ledwell submitted) concerning an iconic tracer release in the Brazil Basin (Polzin et al. 1997, Ledwell et al. 2000) document levels of \u0026nbsp;diapycnal mixing required to explain the long term dispersion of the tracer about its target surface. \u0026nbsp;The required mixing is inconsistent with microstructure observations obtained during the experiment. \u0026nbsp;This inconsistency has helped sustain a community myth about \u201cMissing Mixing\u201d. \u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThis presentation will discuss the details of the tracer injection effort, leading to the conclusion that the the microstructure observations need to be taken at face value and are likely consistent with the tracer dispersion. \u0026nbsp;The presentation will conclude by discussing ongoing and future efforts to address what is missing from the observational record: \u0026nbsp;the near boundary coupling of the bottom boundary layer to the internal wavefield above steep and rough topography. \u0026nbsp;\u003C\/p\u003E\r\n","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EGeorgia Institute of Technology School of Earth and Atmospheric Science spring 2023 seminar series presents Dr. Kurt Polzin.\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"A seminar by Dr. Kurt Polzin, School of Earth and Atmospheric Sciences"}],"uid":"34458","created_gmt":"2023-03-30 13:12:25","changed_gmt":"2023-03-30 13:17:19","author":"nlawson3","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2023-04-13T11:00:00-04:00","event_time_end":"2023-04-13T12:00:00-04:00","event_time_end_last":"2023-04-13T12:00:00-04:00","gmt_time_start":"2023-04-13 15:00:00","gmt_time_end":"2023-04-13 16:00:00","gmt_time_end_last":"2023-04-13 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Ford Environmental Science and Technology Building (ES\u0026T), Room L1205","extras":[],"hg_media":{"670353":{"id":"670353","type":"image","title":"Kurt Polzin","body":null,"created":"1680181531","gmt_created":"2023-03-30 13:05:31","changed":"1680181563","gmt_changed":"2023-03-30 13:06:03"}},"media_ids":["670353"],"groups":[{"id":"364801","name":"EAS"}],"categories":[],"keywords":[{"id":"175623","name":"EAS Seminar"}],"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\u003EDr. Annalisa Bracco\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}