{"id":28417,"date":"2024-04-09T16:54:34","date_gmt":"2024-04-09T16:54:34","guid":{"rendered":"https:\/\/usoceandiscovery.org\/?page_id=28417"},"modified":"2024-12-23T18:15:02","modified_gmt":"2024-12-23T18:15:02","slug":"isabel-dove","status":"publish","type":"page","link":"https:\/\/usoceandiscovery.org\/isabel-dove\/","title":{"rendered":"Isabel Dove"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:var(--awb-color3);border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1456px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_2_3 2_3 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-1\"><h3><strong>Tracking oceanographic changes and climate implications in Holocene Antarctic coastal zones<\/strong><\/h3>\n<p>&nbsp;<\/p>\n<p><strong><a href=\"https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2022\/10\/Dove.jpg\"><img decoding=\"async\" class=\"wp-image-25618 size-full alignright\" src=\"https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2022\/10\/Dove.jpg\" alt=\"\" width=\"230\" height=\"300\" \/><\/a>Abstract<\/strong><\/p>\n<p>A possible explanation for the rise in atmospheric CO2 over the past 10,000 years is increased supply of deep water-sourced nutrients to the surface ocean coupled to lower relative nutrient utilization in the open ocean, allowing outgassing of deeply stored carbon. Coastal Antarctic zones are highly productive regions that sequester a significant proportion of carbon fixed in the Southern Ocean surface, yet changes in nutrient utilization throughout the Holocene, and consequent impact on atmospheric CO2, remain unconstrained. A circum-Antarctic Neoglacial transition occurred ~4.5 ka, leading to reduced primary productivity in coastal zones due to increased sea ice extent. In my project, I will generate a high-resolution Holocene record of diatom-bound nitrogen isotopes at IODP Site 1357 in the Ade\u0301lie Basin, East Antarctica to characterize nutrient utilization under an open ocean versus sea ice-dominated coastal regime.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Biography<\/strong><\/p>\n<p>I grew up in Collegeville, Pennsylvania, but it was family trips around the country that motivated my interest in Earth science. While we attempted to visit all 50 states, I was fascinated by changing landscapes and weather patterns. As a geology major at Colgate University, I was introduced to paleoclimate research under the mentorship of Dr. Amy Leventer. I used diatom assemblages in marine sediments to reconstruct environmental changes in Antarctica over the last 10,000 years. Now, as I pursue my Ph.D. at the University of Rhode Island\u2019s Graduate School of Oceanography, working with Dr. Rebecca Robinson, I use the nitrogen isotopic composition of diatoms\u2019 shells to investigate oceanographic changes between glacial and interglacial cycles. I am fortunate to work with both live diatoms in culture as well as diatom fossils in Antarctic marine sediments as I study how past climate change informs projections of future\u00a0change. In addition to my research, I enjoy knitting, and sometimes combine my passions by knitting patterns based on paleoceanographic datasets.<\/p>\n<\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-0{width:66.666666666667% !important;margin-top : 0px;margin-bottom : 0px;}.fusion-builder-column-0 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 2.88%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 2.88%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-0{width:66.666666666667% !important;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 2.88%;margin-left : 2.88%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-0{width:100% !important;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-1{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":12,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"footnotes":""},"class_list":["post-28417","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - 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