1. Scripps Institution of Oceanography University of California at San Diego La Jolla CA USA
2. California State Parks, Division of Natural Resources University of California at San Diego La Jolla CA USA
3. Curtis Instruments, Inc. Livermore CA USA
4. Department of Earth, Planetary, and Space Sciences University of California Los Angeles CA USA
5. Institute of Geophysics and Planetary Physics Los Angeles CA USA
6. Doppler, Ltd. Poway CA USA