Просмотр архива за вторник, 10 апреля 2001
Отчет о солнечной активности
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Отчет о солнечно-геофизической активности 2001 Apr 10 2200 UTCПодготовлено NOAA © SWPC и представлено SpaceWeatherLive.com
Совместный отчет USAF/NOAA о солнечной и геофизической активности
Количество SD 100 на уровне 2200Z 10 Apr 2001IA. Анализ активных солнечных регионов и активности от 09 - 2100Z до 10 - 2100Z Solar activity remained at high levels. Region 9415
(S23W19) produced a long-duration X2/3b parallel-ribbon flare at
10/0526 UTC. This flare was associated with a 4000 SFU Tenflare,
Type II and IV radio sweeps, a 14-degree filament disappearance, and
a fast full-halo CME. Region 9415 showed decay in its trailer spots,
but maintained a strong magnetic delta configuration in its leader
portion, where a minor increase in spots was noted. Minor growth
occurred in Region 9417 (S08W39). It produced a C6/Sf at 10/1451
UTC. Minor growth was also observed in Region 9425 (S25W49). The
remaining regions were simply-structured and stable. No new regions
were assigned.
IB. Прогноз солнечной активности
Solar activity is expected to be at
moderate to high levels. Region 9415 is expected to produce another
major flare during the period.
IIA. Обзор геофизической активности от 09 - 2100Z до 10 - 2100Z
Geomagnetic field activity ranged from quiet to active levels. A
greater than 10 MeV proton event followed today's X2/3b flare. It
began at 10/0850 UTC and was in progress as the period ended. The
greater than 10 MeV proton flux was near 100 PFU at the close of the
period and gradually increasing. A greater than 100 MeV proton flux
enhancement was also associated with the X2/3b flare. A polar cap
absorption (PCA) event began around 10/1200 UTC and continued as the
period ended. Thus far, maximum absorption associated with the PCA
event has been estimated at 8.5 dB. The greater than 2 MeV electron
flux reached high levels during the period.
IIB. Прогноз геофизической активности
A major geomagnetic storm is
expected during 11 - 12 April in response to halo-CMEs observed on
09 - 10 April. Active to major storm levels are expected during this
disturbance with brief severe storm levels possible at high
latitudes. Unsettled to minor storm levels are expected on 13 April
as the storm subsides. The greater than 10 MeV proton event is
expected to continue through most of the period. The PCA event is
expected to end during the latter half of the period. The greater
than 2 MeV electron flux is expected to be at moderate to high
levels during the period.
III. Вероятность события от 11 - Apr до 13 - Apr
| M-класс | 80% | 80% | 80% |
| X-класс | 25% | 25% | 25% |
| Протон | 90% | 80% | 25% |
| PCAF | In Progress | ||
IV. Радиоизлучение λ = 10,7см
Наблюдаемый 10 Apr 170 Прогнозируемый 11 Apr-13 Apr 165/165/160 среднее значение за последние 3 месяца 10 Apr 167
V. Геомагнитные индексы
Наблюдаемый Afr/Ap 09 Apr 017/019 По оценкам Afr/Ap 10 Apr 013/009 Прогнозируемый Afr/Ap 11 Apr-13 Apr 050/040-050/090-020/030
VI. Вероятность геомагнитной активности с 11 - Apr до 13 - Apr
| A. Средние широты | |||
|---|---|---|---|
| Активно | 15% | 15% | 35% |
| Слабый шторм | 25% | 25% | 15% |
| Большой шторм | 45% | 45% | 10% |
| B. Высокие широты | |||
|---|---|---|---|
| Активно | 15% | 25% | 35% |
| Слабый шторм | 30% | 30% | 20% |
| Большой шторм | 50% | 35% | 15% |
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