1. Institute for Multiscale Simulations, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91058, Germany
2. Department of Geosciences, University of Cologne, Pohligstraße 3, 50969 Cologne, Germany
3. Institute for Multiscale Simulations, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91058, Germany; Max-Planck-Institut für Physik komplexer Systeme, D-01187 Dresden, Germany; Instituto de Altos Estudos da Paraíba, Rua Silvino Lopes 419-2502, 58039-190 João Pessoa, Brazil; and Complexity Sciences Center, 9225 Collins Avenue Suite 1208, Surfside, Florida 33154