Просмотр архива за воскресенье, 30 сентября 2001
Отчет о солнечной активности
Любая солнечная вспышка, упомянутая в этом расчете, имеет масштабирующий коэффициент, применяемый Центром прогнозирования космической погоды (SWPC). Из-за него солнечные вспышки здесь на 42% слабее, чем в научных данных. Из наших архивов этот коэффициент был удален, чтобы показать реальные величины вспышек.
Отчет о солнечно-геофизической активности 2001 Sep 30 2200 UTC
Подготовлено NOAA © SWPC и представлено SpaceWeatherLive.comСовместный отчет USAF/NOAA о солнечной и геофизической активности
Количество SD 273 на уровне 2200Z 30 Sep 2001
IA. Анализ активных солнечных регионов и активности от 29 - 2100Z до 30 - 2100Z
Solar activity remained at moderate levels. Region 9628
(S17W76) produced a long-duration M1/Sf flare at 30/1141 UTC
associated with minor discrete frequency radio emission. Region 9628
may have decayed a bit as it approached the west limb, but remained
large and complex. Decay was also noted in Region 9632 (S18W61) as
its large interior spot mass began to split, which may have
dissipated the magnetic delta structure contained therein.
Nonetheless, this region remained large and complex. Region 9636
(N14W15), a reverse-polarity sunspot group, showed gradual
development during the day. It was moderate in size and complexity
as it produced isolated subflares, none of which were associated
with significant X-ray or radio emission.
IB. Прогноз солнечной активности
Solar activity is expected to remain
at moderate levels. Isolated M-class flares will be possible from
Regions 9628, 9632, and 9636. Regions 9628 and 9632 each could
produce an isolated major flare before they rotate out of view on 01
and 02 October, respectively.
IIA. Обзор геофизической активности от 29 - 2100Z до 30 - 2100Z
Geomagnetic field activity ranged from quiet to minor storm levels.
Minor storm levels occurred globally during 29/2100 - 2400 UTC
following a sustained period of southward IMF Bz (as measured by
NASA's ACE spacecraft). Activity decreased to quiet to unsettled
levels during 30/0000 - 1500 UTC, then increased to active levels
for the rest of the period. An interplanetary shock passed the ACE
spacecraft at 30/1848 UTC. The source for this shock may have been a
CME that followed a long-duration M3/2n flare from Region 9636 at
28/0830 UTC. The greater than 10 MeV event that began at 24/1215 UTC
ended at 30/1710 UTC.
IIB. Прогноз геофизической активности
Active geomagnetic conditions
will be possible during 01 - 02 October due to recent CME activity.
Field activity is expected to decrease to quiet to unsettled levels
on 03 October. There will be a slight chance for a proton flare from
Region 9628 or 9632 during the period.
III. Вероятность события от 01 - Oct до 03 - Oct
| M-класс | 80% | 75% | 70% |
| X-класс | 25% | 20% | 10% |
| Протон | 20% | 15% | 10% |
| PCAF | yellow
|
IV. Радиоизлучение λ = 10,7см
Наблюдаемый 30 Sep 236
Прогнозируемый 01 Oct-03 Oct 230/225/225
среднее значение за последние 3 месяца 30 Sep 176
V. Геомагнитные индексы
Наблюдаемый Afr/Ap 29 Sep 019/021
По оценкам Afr/Ap 30 Sep 012/012
Прогнозируемый Afr/Ap 01 Oct-03 Oct 020/015-015/012-012/012
VI. Вероятность геомагнитной активности с 01 - Oct до 03 - Oct
| A. Средние широты |
| Активно | 40% | 40% | 30% |
| Слабый шторм | 20% | 20% | 10% |
| Большой шторм | 10% | 10% | 01% |
| B. Высокие широты |
| Активно | 50% | 50% | 35% |
| Слабый шторм | 25% | 25% | 15% |
| Большой шторм | 15% | 15% | 01% |
Все время в UTC
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