Table 3 The DR violation statistics for the impedance tensors from the integrated offshore MT database of ERI and JAMSTEC
From: Validity of the dispersion relations in magnetotellurics. Part II: synthetic and field data
Projects | The amount of impedance tensors examined | |||
|---|---|---|---|---|
Total number | Anomalous | Strongly anomalous | Non-causal | |
TIARES (1989, 2008–2010, South Pacific Ocean) | 20 (100%) | 4 (20%) | 4 (20%) | 4 (20%) |
NOMAN (2010–2015, North Pacific Ocean) | 23 (100%) | 0 (0%) | 0 (0%) | 0 (0%) |
Other projects (1996–2013, Sea of Japan, Philippine Sea, Atlantic Ocean, etc.) | 101 (100%) | 8 (8%) | 7 (7%) | 7 (7%) |
All together | 144 (100%) | 16 (11%) | 15 (10%) | 15 (10%) |