ips-whfpr -- Weekly HF Propagation Report


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The SWS Weekly HF Propagation Report provides a one week summary and forecast of HF propagation and ionospheric conditions, along with a one month outlook for disturbed HF propagation conditions, for the Australian region.

The weekly summary is based on ionospheric vertical maximum usable frequencies obtained from a network of SWS ionosondes. A daily text summary of ionospheric support level and a calculated ionospheric index called the T-index is provided. SWS customers that have purchased the SWS prediction software ASAPS can use this index. More informationon the SWS Tindex is available at: T index Information

The first few days forecast is a combination of recent solar coronal mass ejection activity and 27 day patterns. The remainder of the days of the forecast week are based on 27 day recurrent patterns (typically coronal hole induced geomagnetic activity degrading HF conditions, and the possible return of active solar regions which may flare and produce fadeouts)

Ionospheric data is available for download from the SWS World Data Centre at:
SWS WDC Ionospheric data

Background reading space weather and radio communication is available at:
SWS Educational Pages - Space Weather and Radio Communication

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