1. Earth Resources Laboratory, Department of Earth, Atmospheric and Planetary Sciences; Massachusetts Institute of Technology; Cambridge Massachusetts USA
2. School of Engineering; Tohoku University; Sendai Japan
3. Institute of Fluid Science; Tohoku University; Sendai Japan
4. Fukushima Renewable Energy Institute; National Institute of Advanced Industrial Science and Technology; Koriyama Japan
5. Häring GeoProject; Liestal Switzerland