| 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 | 11h 00m | 08d 24h | sudden | +39 | 97 | 7.9 | 56 | 267 | 42 |
| Memambetsu | 11h 00m | 08d 24m | sudden | +44 | 120 | 14.8 | 38 | 23 | 73 |
| Kanoya | 11h 00m | 08d 24h | sudden | +42 | 114 | 6.7 | 50 | 75 | 30 |
(*) 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 8 April 2001.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 8 April 2001.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 8 April 2001.
*) 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 | 13h 43m | 12d 19h | sudden | +20 | 322 | 19.8 | 127 | 483 | 90 |
| Memambetsu | 13h 43m | 12d 19m | sudden | +26 | 384 | 27.7 | 63 | 44 | 140 |
| Kanoya | 13h 43m | 12d 19h | sudden | +21 | 358 | 17.7 | 110 | 136 | 50 |
(*) 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 11 April 2001.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 11 April 2001.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 11 April 2001.
*) 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 | 07h 34m | 13d 24h | sudden | +16 | 107 | 8.4 | 59 | 365 | 63 |
| Memambetsu | 07h 34m | 13d 24m | sudden | +23 | 116 | 13.9 | 33 | 25 | 63 |
| Kanoya | 07h 34m | 13d 24h | sudden | +20 | 128 | 8.5 | 61 | 97 | 39 |
(*) 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 13 April 2001.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 13 April 2001.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 13 April 2001.
*) 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 | 00h 46m | 18d 19h | sudden | +15 | 86 | 16.4 | 58 | 162 | 33 |
| Memambetsu | 00h 46m | 18d 19m | sudden | -21 | 122 | 21.7 | 38 | 22 | 71 |
| Kanoya | 00h 46m | 18d 19h | sudden | +23 | 98 | 15.1 | 85 | 67 | 19 |
(*) 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 18 April 2001.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 18 April 2001.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 18 April 2001.
*) 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 | 16h 01m | 22d 22h | sudden | +19 | 129 | 12.4 | 68 | 161 | 21 |
| Memambetsu | 16h 01m | 22d 22m | sudden | +25 | 122 | 15.4 | 46 | 11 | 46 |
| Kanoya | 16h 01m | 22d 22h | sudden | +22 | 146 | 10.6 | 81 | 44 | 16 |
(*) 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 21 April 2001.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 21 April 2001.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 21 April 2001.
*) 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 | 05h 00m | 29d 16h | sudden | +48 | 128 | 6.6 | 50 | 452 | 81 |
| Memambetsu | 05h 00m | 29d 16m | sudden | +53 | 142 | 9.7 | 27 | 39 | 39 |
| Kanoya | 05h 00m | 29d 16h | sudden | +65 | 157 | 6 | 42 | 103 | 44 |
(*) 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 28 April 2001.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 28 April 2001.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 28 April 2001.
*) Plot diagram opens in a separate window.
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