1. Department of Earth and Planetary Sciences; Rutgers University; New Brunswick New Jersey USA
2. Non-Linear Physics Group, Faculty of Physics; Universidade de Santiago de Compostela; Galicia Spain
3. International Centre for Water Hazard and Risk Management (ICHARM) under the auspices of UNESCO; Tsukuba Japan
4. Planetary Geodynamics Laboratory; NASA Goddard Space Flight Center; Greenbelt Maryland USA