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台灣HF傳播預測
HF傳播預測
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條件 :
天線 : Dipole, 高度 : 10M, ShortPath
輸出功率 : 100W

Propagation maps created with HamCAP
本資料來源 : 國家通訊傳播委員會電離層資訊網--高頻通訊最佳運用頻率預報 [簡介]
UTC : 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
全球地區與台灣地區最佳運用頻率預報圖
Sunspot Number Prediction
這是過去400+年太陽黑子狀況,1650~1700太陽黑子幾乎沒有,如取過去世界各地所觀測黑子的平均數目,對年份作圖,即可看出太陽黑子的週期性變化 。每一黑子週期長者可達13.3年,短的只有7.3年,而平均值是10.8 年,所以現在最常被引用的黑子週期為11 年。
Sunspot Number Prediction - Solar Cycle 24
FYI -
by the NOAA Space Weather Prediction Center (SWPC)
May 8, 2009 -- Solar Cycle 24 Prediction Update The Solar Cycle 24 Prediction Panel has reached a consensus decision on the prediction of the next solar cycle (Cycle 24). First, the panel has agreed that solar minimum occurred in December, 2008. This still qualifies as a prediction since the smoothed sunspot number is only valid through September, 2008. The panel has decided that the next solar cycle will be below average in intensity, with a maximum sunspot number of 90. Given the predicted date of solar minimum and the predicted maximum intensity, solar maximum is now expected to occur in May, 2013. Note, this is a consensus opinion, not a unanimous decision. A supermajority of the panel did agree to this prediction.
Sun spot number pregression
F10.7 Radio Flux pregression
AP pregression
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