NOAA / Space Weather Prediction Center
Updated: 2009 May 05 2327 UTC Current Xray Flux:A0.0
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Conditions in the D-Region of the Ionosphere have a dramatic effect on High Frequency (HF) communications and Low Frequency (LF) navigation systems like Loran. SWPC has developed a new, global, D-Region Absorption Product, depicting the D-region at high latitudes where it is driven by particles as well as low latitudes, where photons cause the prompt changes. This new product merges all latitudes using appropriate displays, and promises to be useful to customers such as commercial aviation and numerous maritime users.
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Documentation | Tabular Values | Latest X-ray Flux Plot | Black Background Monitor |
D-Region Major Event Animations
Major X-level X-ray Events since 2000 | Smaller M-level X-ray Events | ||||
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