Alfaro, Eric J., 1. School of Physics, University of Costa Rica, 11501-2060 San José, Costa Rica.
2. Center for Geophysical Research (CIGEFI), University of Costa Rica, 11501-2060 San José, Costa Rica.
3. Marine Sciences and Limnology Research Center (CIMAR), University of Costa Rica, 11501-2060 San José, Costa Rica., Costa Rica