Open Access
Table 1
Geophysical parameters of GPS and ionosonde stations used in the study.
| Station name | ID | Country | Geog lat (°) | Geog lon (°) | Mag lat (°) |
|---|---|---|---|---|---|
| GPS receiver stations | |||||
| Daejeon | DAEJ | South Korea | 36.40 | 127.37 | 30.62 |
| Koganei | KGNI | Japan | 35.71 | 139.49 | 29.46 |
| Aira | AIRA | Japan | 31.82 | 130.59 | 25.92 |
| Changchu | CHAN | China | 43.79 | 125.44 | 38.15 |
| Shimosato Hydrographic | SMST | Japan | 33.58 | 135.94 | 27.46 |
| Suwon | SUWN | South Korea | 37.27 | 127.05 | 31.51 |
| Hsinchu | TCMS | Taiwan | 24.79 | 120.99 | 19.29 |
| Hsinchu | TNML | Taiwan | 24.79 | 120.99 | 19.29 |
| Usuda | USUD | Japan | 36.13 | 138.36 | 29.91 |
| Yongsan | YONS | South Korea | 37.54 | 127.00 | 31.78 |
| BJNM, NIM | BJNM | China | 40.24 | 116.22 | 34.94 |
| Beijing Fangshan | BJFS | China | 39.61 | 115.89 | 34.31 |
| Yuzhno-Sakhalinsk | YSSK | Russia | 47.03 | 142.71 | 40.71 |
| Tsukuba 2-A | TSK2 | Japan | 36.11 | 140.09 | 29.85 |
| Chichijima-A | CCJ2 | Japan | 27.07 | 142.20 | 20.96 |
| Ionosonde stations | |||||
| Jeju | JJ433 | South Korea | 33.43 | 126.30 | 27.70 |
| Kokubunji | TO536 | Japan | 35.70 | 139.50 | 29.45 |
| Icheon | IC437 | South Korea | 37.10 | 127.50 | 31.32 |
| Okinawa | OK426 | Japan | 26.33 | 127.80 | 20.62 |
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