JanuaryIssue 1: 1 - 53 Oceanic seismic exploration
AprilIssue 2: 61 - 121 Simulation and modeling
JulyIssue 3: 125 - 221 Extremely low frequency (ELF) communications
OctoberIssue 4: 229 - 284
DecemberIssue 5: 289 - 389 Microwave signatures of the sea, sea ice, and snow