Solar Burst Micro Bursts

[Celzo, Celsius F.]

Good day!

On August 29 and 30, around 3:00 UTC to 6:00 UTC, our deployed dual dipole antenna situated in a rural municipality of Baras in the Philippines received unusual radio bursts. Could it be a Type III Solar Radio Storm or something else? How these bursts formed and where these came from? 

Thank you!


Best,

Celsius F. Celzo

[Nathan]

There was quite a lot of activity from 10/28 to 10/30.  What I saw was
mostly type III and type IIIb, but also other types including the
general morphology in your dynamic spectrum.  The activity seemed to let
up 10/31.

Nathan

[Celzo, Celsius F.]

What are the sources of these bursts and how do you classify them? 

Thanks! 

Celsius Celzo

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[Nathan]

I am not knowledgeable regarding the sources of these bursts.  In general they are from plasma instabilities in the sun's corona, and perhaps shocks associated with coronal mass ejections.  Here is a tutorial on classifications by W. Reeve.  A review article on type III bursts is Reid and Ratcliffe, "A Review of Solar Type III Radio Bursts".  And a recent article on the relationship between types III and IIIb bursts is Chen et al., "The frequency ratio and time delay of solar radio emissions with fundamental and harmonic components". 

Nathan

On 9/7/25 00:30, Celzo, Celsius F. wrote: