BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Talks.cam//talks.cam.ac.uk// X-WR-CALNAME:Talks.cam BEGIN:VEVENT SUMMARY:The use of marine geophysical data to investigate the climate and environment of the Quaternary - Christine Batchelor\, Norwegian University of Science and Technology (NTNU)\, Trondheim\, Norway DTSTART:20200227T130000Z DTEND:20200227T140000Z UID:TALK139051@talks.cam.ac.uk CONTACT:Frazer Christie DESCRIPTION:An understanding of the configuration and dynamics of ice shee ts during the Quaternary Period (last c.2.6 million years) is essential to constrain numerical models of past environmental conditions and to predic t the likely future responses of ice sheets to climatic change. Whereas su baerial erosion and human activity have produced a fragmented glacial reco rd in many terrestrial environments\, evidence of past ice-sheet activity is often well-preserved on and beneath the seafloor of deglaciated contine ntal shelves. Marine geophysical data can be used to analyse glacial landf orms and sediments at a variety of spatial and temporal scales. 2D and 3D seismic data show how mid- and high-latitude continental margins have been shaped by the repeated advance and retreat of ice sheets during the last few million years. Bathymetric data enable the interpretation of glacial l andforms preserved on the seafloor\, revealing the dynamic behaviour of ic e masses during the last glacial cycle. The recent use of Autonomous Under water Vehicles (AUVs) to acquire high-resolution geophysical data provides a step-change in our ability to image submarine landforms and facilitates new interpretations about ice dynamics at a fine temporal scale. In this presentation\, the use of marine geophysical data to investigate the clima te and environment of the Quaternary will be demonstrated using examples o f recent research into the past behaviour of ice sheets on mid- and high-l atitude continental margins. LOCATION:Rm 101\, William Hardy Building\, Department of Geography\, Downi ng Site END:VEVENT END:VCALENDAR