Table 1 Geomagnetic and geographic coordinates of stations used in this study
Region | Station name (code) | Geographic | Geomagnetic | ||
|---|---|---|---|---|---|
Lat. (°) | Lon. (°) | Lat. (°) | Lon. (°) | ||
South America | Ancon (ANC) | −11.77 | −77.15 | 0.77 | 354.33 |
Fuquene (FUQ) | 5.40 | −73.73 | 15.72 | 357.99 | |
African | Ilorin (ILR) | 8.50 | 4.68 | −1.82 | 76.80 |
Tamanrasset (TAM) | 22.8 | 5.5 | 25.4 | 80.6 | |
Adis Ababa (AAB) | 9.04 | 38.77 | 0.18 | 110.47 | |
Nairobi (NAB) | −1.16 | 36.48 | −10.65 | 108.18 | |
India | Tirunelveli (TIR) | 8.70 | 77.80 | 0.21 | 149.30 |
Alibag (ABG) | 18.62 | 72.87 | 10.36 | 146.54 | |
Southeast Asia | Langkawi (LKW) | 6.30 | 99.78 | −2.32 | 171.29 |
Kototabang (KTB) | −0.20 | 100.32 | −10.63 | 171.93 | |
Davao (DAV) | 7.00 | 125.40 | −1.02 | 196.54 | |
Muntinlupa (MUT) | 14.37 | 121.02 | 6.79 | 192.25 | |