Improving the resolution of very long-period seismic data for normal mode seismology
Adam T Ringler, USGS Geologic Hazards Science Center, Golden, United States, Joseph M Steim, Quanterra Inc, Shirley, MA, United States, David Wilson, Albuquerque Seismological Lab, Albuquerque, NM, United States and Robert E Anthony, USGS Geologic Hazards Science Center, Golden, CO, United States