1. College of Marine Science University of South Florida St. Petersburg FL USA
2. Department of Geophysics Colorado School of Mines Golden CO USA
3. Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography University of California, San Diego La Jolla CA USA
4. Department of Land Resources and Environmental Science Montana State University Bozeman MT USA
5. Applied Physics Laboratory University of Washington Seattle WA USA
6. University of Nebraska–Lincoln Lincoln NE USA
7. Department of Geology Colgate University Hamilton NY USA