Solar Activity and Space Weather

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Solar Terrestial Activity Report
by Jan Alvestad, Sandnes/Norway
Report on forecasts and recent development of solar & geomagnetic data; Average monthly solar flux; Average monthly sunspot number; Planetary A & K indices; Solar wind & electron fluence charts; chart of solar cycles since the start of cycle 21; updated daily
  World Data Center for the Sunspot Index (Regional Warning Center Brussels)
latest sunspot data/forecasts/overviews
The NASA Space Weather Bureau
Current space weather :
solar wind, sunspots, meteor/comet outlook,
daily count of visual/radio meteor rates
Solar Terrestial Dispatch   Space Weather,
Solar & Geophysical Support Services
near-real-time info about solar, auroral activity; alerts & warnings; with special page for
space weather concerning ham radio
Radio Users' Page
by SEC, The Space Environment Center
Today's Space Weather
by SEC, The Space Environment Center
Solar Cycle Predictions
by NASA Marshall Space Flight Center
Solar Cycle 23, 2nd peak  Some solar cycles
are double-peaked, the ongoing Cycle 23 may be a double - and the 2nd peak has arrived
by NASA Space Science News
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Red Sprites and Blue Jets
Is there an association between Sporadic-E
propagation and thunderstorms ?
Research on upper atmospheric optical/
electrical phenomena conducted by
Geophysical Institute
of the University of Alaska / Fairbanks
  Lightning and Atmospheric Electricity
by NASA Space Science News

Rattling Old Bones about Sporadic-E
theories about causes of Sporadic-E
by GM4DGT, from the archives of UKSMG

Sporadic-E propagation at VHF   by W3EP
from the archives of UKSMG
Sporadic-E Reference Page
by <AMFMDX.NET>
VHF Propagation Info
by WA5IYX
TransEquatorial Propagation TEP
on 144MHz   by EA6VQ

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