| 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 | 12h 41m | 02d 06h | sudden | +14 | 77 | 8.2 | 36 | ||
| Memambetsu | 12h 42m | 02d 10m | sudden | +18 | 95 | 11.8 | 14 | ||
| Kanoya | 12h 41m | 02d 06h | sudden | +15 | 78 | 7.6 | 29 | ||
(*) 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 1 May 1997.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 1 May 1997.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 1 May 1997.
*) 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 | 01h 59m | 15d 23h | sudden | +21 | 170 | 14.6 | 73 | ||
| Memambetsu | 01h 59m | 15d 24m | sudden | +17 | 172 | 21.4 | 45 | ||
| Kanoya | 01h 59m | 15d 24h | sudden | +27 | 196 | 13 | 89 | ||
(*) 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 15 May 1997.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 15 May 1997.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 15 May 1997.
*) Plot diagram opens in a separate window.
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