Table 2
List of oblique ionogram paths used here. The path length is the distance between transmitter and receiver. The sounding cadence of 5/10 min indicates that synchronised ionograms are produced alternatingly at five-minute and ten-minute intervals. The distances and azimuths to the eruption are calculated as in Table 1, from the midpoint of the oblique sounding path.
| Transmitter | Receiver | Midpoint | Path-length | Cadence | Distance | Azimuth |
|---|---|---|---|---|---|---|
| PQ052 | JR055 | 52.4°N, 14.0°E | 518 km | 15 min | 16,123 km | 31.4° |
| DB049 | JR055 | 52.4°N, 8.8°E | 780 km | 5/10 min | 16,285 km | 23.2° |
| DB049 | EB040 | 40.5°N, 2.6°E | 1082 km | 15 min | 17,689 km | 19.3° |
| EA036 | EB040 | 39.0°N, 3.3°E | 747 km | 5/10 min | 17,824 km | 22.5° |
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