1. Istituto Nazionale di Geofisica e Vulcanologia Rome Italy
2. Department of Science University of Roma Tre Rome Italy
3. Department of Chemistry University of California Irvine Irvine CA USA
4. Department of Environmental Science, Policy, & Management University of California Berkeley Berkeley CA USA
5. College of Hydrology and Water Resources Hohai University Nanjing China
6. Pacific Northwest National Laboratory Richland WA USA
7. Department of Physics and Astronomy University of Iowa Iowa City IA USA
8. U.S. Geological Survey Moffett Field CA USA
9. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
10. Department of Environmental Sciences Rutgers University New Brunswick NJ USA
11. Department of Geology University of Otago Dunedin New Zealand
12. Atmosphere and Ocean Research Institute The University of Tokyo Tokyo Japan