{"id":363702,"date":"2019-02-13T12:58:42","date_gmt":"2019-02-13T17:58:42","guid":{"rendered":"http:\/\/www.rochester.edu\/newscenter\/?p=363702"},"modified":"2019-02-13T13:06:34","modified_gmt":"2019-02-13T18:06:34","slug":"law-dome-ice-cores-antarctica-climate-change-363702","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/law-dome-ice-cores-antarctica-climate-change-363702\/","title":{"rendered":"Unearthing climate clues buried in ice"},"content":{"rendered":"

\"AEVER…COLDER:<\/strong> The Meliora flag flies high at the Law Dome research station in Antarctica, where scientists from the University of Rochester are leading a research effort aimed at understanding how human activity has affected the ability of the atmosphere to cleanse itself. One of the goals of the project is to estimate changes in the concentration of atmospheric hydroxyl radicals since the pre-industrial period. Hydroxyl radicals are the main atmospheric oxidant and are responsible for removing reactive greenhouse gases such as methane as well as many pollutants such as carbon monoxide.<\/p>\n

 <\/p>\n

\"Metal
\nTRAPPED IN ICE:<\/strong> The research team\u2014which includes Vasilii Petrenko, associate professor of Earth and environmental sciences, postdoctoral research associate Peter Neff, and laboratory manager Edward Crosier\u2014recently spent three months in Antarctica. The group drilled more than 1000 meters of ice core and extracted approximately 500 liters of ancient air trapped in the ice. This is a continuation of their research to analyze ice samples for clues about past and present climate change<\/a>.<\/p>\n

 <\/p>\n

\"sunset<\/p>\n

NO SNOW DAYS:<\/strong> Conditions in the field this past season, including bitter cold temperatures and some of the heaviest snowfalls in the world, made data collection difficult, Petrenko says. \u201cThis was probably the most challenging polar field campaign that my group has ever undertaken because of the length of the field season, tremendously bad weather, multiple logistical hurdles, and the difficulties associated with cleanly drilling the ice cores and extracting ancient air from them.”<\/p>\n

This research is jointly supported by the US National Science Foundation<\/a> and the Australian Antarctic Division.<\/a><\/p>\n

(University of Rochester photos \/\u00a0Vasilii Petrenko)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

The Meliora flag flies over the Law Dome research station in Antarctica, where Rochester scientists are battling some of the toughest field conditions ever in their effort to understand humans\u2019 impact on climate. <\/p>\n","protected":false},"author":912,"featured_media":363932,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[116],"tags":[21782,18852,16072],"class_list":["post-363702","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sci-tech","tag-climate-change","tag-department-of-earth-and-environmental-sciences","tag-school-of-arts-and-sciences"],"acf":[],"yoast_head":"\nUnearthing climate clues buried in ice<\/title>\n<meta name=\"description\" content=\"The Meliora flag flies over Law Dome research station in Antarctica, where Rochester scientists are battling some of the toughest field conditions ever.\" \/>\n<meta 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