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X-WR-CALNAME;VALUE=TEXT:UMCES Events
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DTSTART:20211107T020000
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DTSTART:20220313T020000
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UID:calendar.23009.field_date_time.0@www.umces.edu
DTSTAMP:20260404T015250Z
CREATED:20220317T193604Z
DESCRIPTION:March 30\, 2022 3:30pm    \n    \n      \n\n\n    \n\n         
      \nChesapeake Biological Laboratory\n      \n\n\n\n\n  \n\n    \n\n   
            \n\n\n              Special Seminar: Dr. Samantha Bova\n       
    \n  \n\n    \n\n              \n\n\nSpecial seminar: 2022 Ocean Discove
 ry Lecturer\n\n\n\nITS GETTING HOT IN HERE: REINTERPRETED CLIMATE PROXIES 
 ALTER UNDERSTANDING OF INTERGLACIAL WARMTH\n\n\n\nDr. Samantha Bova \n\n\n
 \nSan Diego State University\n\n\n\nMarch 30\, 2022\, 3:30pm\n\n\n\nHosted
  by Chesapeake Biological Lab\, \n\n\n\nUniversity of Maryland Center for 
 Environmental Science\n\n\n\nRemote zoom login: \n\n\n\nhttps://umces-edu.
 zoom.us/j/97903285754?pwd=S2lIbDFERHpzeEpJdGRUV0RyZmZCQT09\nMeeting ID: 97
 9 0328 5754\nPasscode: 1925\n\n\n\n(More login info at end of document)\n
 \n\n\nAbstract: Predicting the response of Earth’s climate system to risin
 g global temperatures is one of the grand challenges facing the scientific
  community today. Scientific ocean drilling has been at the forefront of t
 his challenge for decades enabling the collection of sedimentary archives 
 that offer a perspective on Earth’s climate during previous interglacials 
 unaffected by human activities. Paleoclimate records\, such as these\, are
  the only way to observe the response of Earth’s climate system to warmer 
 than present temperatures. The Holocene and last interglacial thermal maxi
 ma\, occurring approximately 10 to 6 and 128 to 123 thousand years ago\, r
 espectively\, are the two most recent warm intervals in the geologic recor
 d and are often used as analogs of future climate. This is because proxy r
 econstructions\, arguably interpreted to record global mean temperatures\,
  indicate these periods were as warm or warmer than recent decades. Howeve
 r\, early interglacial warmth is not simulated in the annual mean by state
 -of-the-art climate models. This model-data inconsistency thereby limits o
 ur understanding of both the cause and climate system response of the obse
 rved warmth\, and thus the utility of these time intervals to help predict
  our future. Using sediments collected off the north coast of Papua New Gu
 inea on IODP Expedition 363 and a suite of sediment cores recovered on pre
 vious ocean coring expeditions\, I will demonstrate that early interglacia
 l warmth\, as recorded by proxies\, is a seasonal feature driven by change
 s in incoming northern hemisphere summer solar radiation\, and that peak m
 ean annual global temperature actually occurs thousands of years later. Th
 is result confirms climate model simulations that show global mean annual 
 temperature warming\, rather than cooling\, across past interglacial perio
 ds\, and thus resolves the long-standing interglacial temperature conundru
 m. The new results show that Earth’s global temperatures have reached unch
 arted territory that has not been observed over the past 12\,000 and perha
 ps 128\,000 years.\n\n\n\nLecturer Bio: Dr. Samantha Bova is a marine geol
 ogist and paleoceanographer specializing in the reconstruction of past cha
 nges in Earth’s climate using marine sediment and geochemistry. Her areas 
 of interest include the evolution and drivers of past warm periods in Eart
 h history\, abrupt climate change\, natural climate variability\, and cont
 rols on tropical rainfall. Her current research investigates the history o
 f global temperature during the past two warm intervals in Earth history\,
  suggesting that modern global temperatures exceed those observed over at 
 least the past 125\,000 years. Bova is also actively engaged in the recove
 ry of sediment from the seafloor\, having led a month-long ocean expeditio
 n to collect sediment from offshore Chile in 2019 that will be utilized to
  reconstruct oceanographic conditions in the southeast Pacific and the his
 tory of the Patagonia icefields. Bova received a Ph.D. in Earth\, Environm
 ental and Planetary Science as well as an M.S. in Geological Sciences from
  Brown University and an A.B. in Earth and Planetary Science from Washingt
 on University in St. Louis.  Bova started as an Assistant Professor at San
  Diego State University this fall. 
DTSTART;TZID=America/New_York:20220330T153000
DTEND;TZID=America/New_York:20220330T153000
LAST-MODIFIED:20220317T193729Z
SUMMARY:Special Seminar: Dr. Samantha Bova (San Diego State University)
URL;TYPE=URI:https://www.umces.edu/events/special-seminar-dr-samantha-bova-
 san-diego-state-university
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