{"618456":{"#nid":"618456","#data":{"type":"event","title":"Why is Sea Level Changing at Different Rates along the U.S. East Coast?","body":[{"value":"\u003Ch4\u003E\u003Cstrong\u003EOcean, Science and Engineering Presents Dr. Christopher Piecuch, Woods Hole Oceanographic Institution\u003C\/strong\u003E\u0026nbsp;\u003C\/h4\u003E\r\n\r\n\u003Cp\u003EWhy is Sea Level Changing at Different Rates along the U.S. East Coast?\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIdentifying the causes of historical trends in relative sea level--the height of the sea surface\u0026nbsp;relative to Earth\u0026#39;s crust--is a prerequisite for predicting future changes. Rates of change along the U.S.\u0026nbsp;East Coast during the last century were spatially variable, and relative sea level rose faster along the Mid-Atlantic Bight than the South Atlantic Bight and Gulf of Maine.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPast studies suggest that Earth\u0026#39;s ongoing\u0026nbsp;response to the last deglaciation, surface redistribution of ice and water, and changes in ocean\u0026nbsp;circulation contributed importantly to this large-scale spatial pattern.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EHere we analyze instrumental data\u0026nbsp;and proxy reconstructions using probabilistic methods to show that vertical motions of Earth\u0026#39;s crust\u0026nbsp;exerted the dominant control on regional spatial differences in relative sea level trends along the U.S.\u0026nbsp;East Coast during 1900-2017, explaining a majority of the large-scale spatial variance. Rates of coastal\u0026nbsp;subsidence caused by ongoing relaxation of the peripheral forebulge associated with the last\u0026nbsp;deglaciation are strongest near North Carolina, Maryland, and Virginia.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ESuch structure indicates that\u0026nbsp;Earth\u0026#39;s elastic lithosphere is thicker than has been assumed in other models. We also find a significant\u0026nbsp;coastal gradient in relative sea level trends over this period that is unrelated to deglaciation, and suggests\u0026nbsp;contributions from twentieth-century redistribution of ice and water.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EOur results indicate that the majority\u0026nbsp;of large-scale spatial variation in longterm rates of relative sea level rise on the U.S. East Coast was due\u0026nbsp;to geological processes that will persist at similar rates for centuries into the future.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EWebinar link:\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E\u003Ca href=\u0022https:\/\/global.gotomeeting.com\/join\/302104821\u0022 id=\u0022LPlnk46582\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/global.gotomeeting.com\/join\/302104821\u003C\/a\u003E\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EUse your microphone and speakers (VoIP) - a headset is recommended. Or, call in using your telephone.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDial +1 (773) 897-3016\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAccess Code: 302-104-821\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAudio PIN: Shown after joining the meeting\u003C\/p\u003E\r\n\r\n\u003Cp\u003EMeeting ID: 302-104-821\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ESuggested reading material\u003C\/strong\u003E\u0026nbsp;(any or all of the following *short* papers)-\u003C\/p\u003E\r\n\r\n\u003Cp\u003EEngelhart et al. (2009) [\u003Ca href=\u0022https:\/\/pubs.geoscienceworld.org\/gsa\/geology\/article-abstract\/37\/12\/1115\/103884\/spatial-variability-of-late-holocene-and-20th?redirectedFrom=fulltext\u0022 id=\u0022LPlnk979629\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/pubs.geoscienceworld.org\/gsa\/geology\/article-abstract\/37\/12\/1115\/103884\/spatial-variability-of-late-holocene-and-20th?redirectedFrom=fulltext\u003C\/a\u003E]\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDavis and Mitrovica (1996) [\u003Ca href=\u0022https:\/\/www.nature.com\/articles\/379331a0\u0022 id=\u0022LPlnk968070\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/www.nature.com\/articles\/379331a0\u003C\/a\u003E]\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"A seminar by Christopher Piecuch, Ocean Science and Engineering"}],"uid":"34458","created_gmt":"2019-02-26 14:18:59","changed_gmt":"2019-02-26 14:49:41","author":"nlawson3","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-03-01T15:00:00-05:00","event_time_end":"2019-03-01T16:00:00-05:00","event_time_end_last":"2019-03-01T16:00:00-05:00","gmt_time_start":"2019-03-01 20:00:00","gmt_time_end":"2019-03-01 21:00:00","gmt_time_end_last":"2019-03-01 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"hg_media":{"618454":{"id":"618454","type":"image","title":"Christopher Piecuch","body":null,"created":"1551190162","gmt_created":"2019-02-26 14:09:22","changed":"1551190162","gmt_changed":"2019-02-26 14:09:22","alt":"","file":{"fid":"235402","name":"Christopher Piecuch.png","image_path":"\/sites\/default\/files\/images\/Christopher%20Piecuch.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/Christopher%20Piecuch.png","mime":"image\/png","size":249456,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/Christopher%20Piecuch.png?itok=EYBexBVs"}}},"media_ids":["618454"],"related_links":[{"url":"https:\/\/global.gotomeeting.com\/join\/302104821","title":"Join the Seminar Online"}],"groups":[{"id":"565971","name":"Ocean Science and Engineering (OSE)"}],"categories":[],"keywords":[{"id":"176779","name":"OSE 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\u003EEmanuele Di Lorenzo\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}