1. Department of Physics North Carolina A&T State University Greensboro NC USA
2. College of Oceanography Hohai University Nanjing China
3. Southern Marine Science and Engineering Guangdong Laboratory Zhuhai China
4. Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
5. Department of Geosciences University of Oslo Oslo Norway
6. College of Atmosphere Science Nanjing University of Information Science & Technology Nanjing China