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Geomagnetic storm information (September 2015)


yGeomagnetic storm observed on 8 September 2015z
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 22.3h 10d 03h gradual 131 9.1 52 214 35
Memambetsu 22.3h 10d 03m gradual 131 13.3 32 15 52
Kanoya 22.3h 10d 03h gradual 145 10.1 64 40 9

(*) 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 September 2015.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 8 September 2015.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 8 September 2015.

*) Plot diagram opens in a separate window.



yGeomagnetic storm observed on 11 September 2015z
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 04.2h 11d 19h gradual 103 6.8 65 215 37
Memambetsu 04.2h 11d 19m gradual 123 10.7 19 26 71
Kanoya 04.2h 11d 19h gradual 111 8 68 48 10

(*) 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 September 2015.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 11 September 2015.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 11 September 2015.

*) Plot diagram opens in a separate window.



yGeomagnetic storm observed on 20 September 2015z
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 06h 03m 20d 21h sudden +14 113 4.8 59 189 30
Memambetsu 06h 03m 20d 21m sudden +18 118 7.6 22 17 46
Kanoya 06h 03m 20d 21h sudden +17 125 4.2 55 39 10

(*) 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 September 2015.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 20 September 2015.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 20 September 2015.

*) Plot diagram opens in a separate window.



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