Institution: | Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015,;USA. E-mail: Atmospheric, Climate, and Environmental Dynamics Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545,;USA Département de physique, Universitéde Montréal, Montréal, Québec H3C 3J7;, Canada Department of Geology and Geophysics, Yale University, New Haven, CT 06520,;USA Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455,;USA Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455,;USA |