查看星期日, 27 3月 2011歷史檔案

太陽活動報表

本報告中提到的任何太陽耀斑都有太空天氣預報中心(SWPC) 應用的比例因子。由於 SWPC 比例因子,據報導太陽耀斑比科學質量數據小 42%。比例因子已從我們存檔的太陽耀斑資料中刪除,以反映真實的物理單位。
太陽地球物理活動報告 2011 Mar 27 2200 UTC
由美國國家海洋暨大氣總署 NOAA 及 太空天氣預測中心 SWPC 複製並編製,並由 ©SpaceWeatherLive.com 處理

美國空軍/美國國家海洋暨大氣總署太陽與地球物理活動聯合報告

SDF 編號 086 在 27 Mar 2011 上以 2200Z 發行

IA. 太陽活動區域和 26-2100Z到 27-2100Z的活動分析

Solar activity was low. Region 1176 (S15E02) produced a C3/Sf at 27/0014Z with discrete radio emissions. Associated with this event was a CME, first observed in LASCO C2 and C3 imagery at 27/0200Z and 27/0242Z respectively. The CME appeared as a narrow band extending east, as viewed in LASCO, and had an estimated plane-of-sky velocity of 630 km/s. SDO/AIA 193 imagery indicated material movement in a wide band extending north through east with stronger movement in an easterly direction. Region 1176 showed little change during the period. At 27/0511Z, Type II (estimated shock velocity of 651 km/s) and Type IV radio signatures were observed. GOES13 and 15 were in eclipse phase, so GOES XRS data was not available. At 27/0512Z, limited GOES-15 SXI data indicated surging and material movement off the NE limb in the vicinity of new Region 1183 (N15E62). LASCO C2 (27/0536Z) and C3 (27/0606Z) imagery detected an asymmetric, partial-halo CME lifting off the NE limb with an estimated plane-of-sky velocity of 880 km/s. New Region 1183 rotated on as a large, 8-spot E-type group with beta-gamma magnetic characteristics. New Region 1182 (N13E01) evolved on the disk as a single spot unipolar group. The remaining groups were quiet and stable during the period. At this time, neither CMEs observed on 27 March appeared to have an Earth-directed component. The Penticton 10.7 cm flux and 90 day mean are estimated due to non-receipt of 27 Marchs flux reading.
IB. 太陽活動預報
Solar activity is expected to be moderate for the next three days (28-30 March). A chance for M-class activity exists on day one (28 March) becoming likely on days two and three (29 - 30 March) with a slight chance for X-class activity on 29 - 30 March. This expected increase in activity is due to the complex nature of Regions 1176 and 1183 plus the return of old Regions 1166 (N10, L=110) on 28 March and 1169 (N17, L=078) on 30 March. On their last transit across the disk, these regions produced a total of six M-class events and one X-class event.
IIA. 地球物理活動摘要 26-2100Z 至 27-2100Z
The geomagnetic field was quiet. ACE solar wind velocities were low, varying between 300 to 370 Km/s, while the Bz component of the IMF was generally north through a majority of the period.
IIB. 地球物理活動預報
The geomagnetic field is expected to be at quiet to unsettled levels, with isolated active periods, on day one (28 March) due to possible effects from the 24 March CME. Mostly quiet conditions are expected for day two (29 March). By day three (30 March), quiet to unsettled conditions, with isolated active periods, are expected due to the arrival of a recurrent coronal hole high speed stream.
III. 事件機率 28 Mar 至 30 Mar
M級50%60%70%
X級05%10%10%
質子01%01%01%
碳核算金融聯盟green
IV. 彭迪克頓10.7厘米通量
  觀測的       27 Mar 117
  預測的   28 Mar-30 Mar  125/125/130
  90天平均值        27 Mar 097
V. 地磁 A 指數
  觀測的 Afr/Ap 26 Mar  001/001
  估算值     Afr/Ap 27 Mar  001/001
  預測的    Afr/Ap 28 Mar-30 Mar  010/010-005/005-010/010
VI. 地磁活動機率 28 Mar 至 30 Mar
A. 中緯度
可見20%10%20%
小風暴05%01%05%
特大強風暴01%01%01%
B. 高緯度
可見25%15%25%
小風暴10%01%10%
特大強風暴01%01%01%

所有時間均採用 UTC 時間

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