| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 14h 21m | 19d 14h | sudden | +37 | 212 | 16.4 | 78 | 251 | 49 |
| Memambetsu | 14h 21m | 19d 14m | sudden | +48 | 211 | 21.5 | 72 | 21 | 64 |
| Kanoya | 14h 21m | 19d 14h | sudden | +40 | 230 | 13.6 | 82 | 71 | 20 |
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 17 August 2003.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 17 August 2003.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 17 August 2003.
*) Plot diagram opens in a separate window.
| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 15.5h | 25d 12h | gradual | 96 | 12.8 | 67 | 151 | 24 | |
| Memambetsu | 15.5h | 25d 12m | gradual | 108 | 16.4 | 39 | 16 | 51 | |
| Kanoya | 15.5h | 25d 12h | gradual | 96 | 12.5 | 60 | 38 | 13 | |
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 20 August 2003.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 20 August 2003.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 20 August 2003.
*) Plot diagram opens in a separate window.
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