Abrupt changes in atmospheric methane and carbon dioxide during Heinrich Stadials from very high resolution ice core data

Edward J Brook1, James Edward Lee2, Thomas K Bauska3, Rachael Rhodes4, Shaun A Marcott5, Jinho Ahn6, Vasilii V Petrenko7, Jeffrey P Severinghaus8, Michael Kalk9, Hubertus Fischer10 and Jochen Schmitt10, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (2)Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, United States, (3)University of Cambridge, Earth Sciences, Cambridge, United Kingdom, (4)Oregon State University, Corvallis, OR, United States, (5)University of Wisconsin Madison, Department of Geoscience, Madison, United States, (6)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (7)University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States, (8)Scripps Institution of Oceanography, La Jolla, United States, (9)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (10)University of Bern, Climate and Environmental Physics and Oeschger Centre for Climate Research, Bern, Switzerland