Solar Activity and Ionospheric Propagation
This section stems from being an Amateur Radio operator (KD4SYW) and my interest in HF/VHF wave propagation. The data and maps below show the current state of solar activity and wave propagation information across a range of radio frequencies.
Solar-Terrestrial Data Summary:
Current Total Electron Content (TEC):
Animated version of the Total Electron Content (TEC) Map
Real-time MUF 3000 Km HF Propagation Map:
(Courtesy of: Andrew Rodland, KC2G)
Animated version of the Maximum Useable Frequency (MUF) Map
NVIS real-time worldwide map (critical frequency: foF2):
(Courtesy of: Andrew Rodland, KC2G)
Anomaly of the critical frequency, foF2, compared to monthly median:
(Courtesy of: Australian Bureau of Meteorology, Space Weather Forecasting Centre)
For additional information on HF Propagation:
See the HF Propagation Prediction and Forecasting page on qsl.net