Propagation, Solar & Space Weather

Revised 2025-10-24

New or updated entries indicated with New or Updated. Labels expire in 30-60 days.

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Links

Angry sunSpace weather and solar disturbances impacts the ionosphere, affecting radio wave transmission (propagation).

  1. Solar Data: Current (graphics)
  2. Atmospheric Imaging Assembly : Sun In Time
  3. GFZ-Pottsdam : HPO index
  4. Global Ionosphere Radio Observatory
    1. Propagation | KC2G
  5. Gray Line (Sunrise‒Sunset Terminator)
    1. Day & Night World Map
    2. Fourmilab Earth View
    3. Gray Line Map
  6. Helioviewer
    1. Eclipse Watch
  7. International_Geophysical_Year: 1957-1958
    1. The Great Magnetic Storm of February 1958
    2. Solar Activity in 1957
  8. International Space Environment Service
  9. Lockheed Martin Solar and Astrophysics Laboratory
  10. ITU Radiowave Propagation Publications
  11. NASA's ICON | Ionospheric Connection Explorer (ionosphere study
  12. NOAA Space Weather Prediction Center
    1. Advanced Composition Explorer (ACE) Real Time Wind
    2. Geophysical Alert WWV/NBS Message (latest)
    3. GOES Magnetometer
    4. GOES X-ray Flux
    5. Last 30 Days Daily Solar Data
    6. Aurora—30-Minute Forecast
    7. Radio Communications Dashboard
    8. Solar Cycle Progression (interactive)
    9. Space Weather Enthusiasts Dashboard
  13. Propagation Predictions Updated
  14. Reflected Tsunamis and Space Weather
  15. Solar and Heliospheric Observatory (SOHO)
  16. Solar Flares and Disturbances for Radio Propagation
  17. Solar Ham (by VE3EN)
  18. Solar Monitor (NASA, one-stop)
  19. Solar Resource Page (by WM7D)
  20. Solar Influences Data Center
  21. Space Weather Canada
  22. Space Weather Services (Australia)
    1. Hourly Area Prediction Charts
    2. Large Monthly Sunspot Numbers
    3. What is the Sunspot Number?
  23. Spaceweather
    1. The Great Geomagnetic Storm of May 1921
    2. Starfish Prime: The First Accidental Geomagnetic Storm
  24. SpaceweatherLive
  25. Stereo
  26. Tromsø Geophysical Observatory
  27. Useable HF Frequencies
  28. Understanding HF Skywave Propagation New
  29. VOACAP (Voice of America Coverage Analysis Program)
  30. World Data Center for Geomagnetism, Kyoto

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