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태양전파관측기

30MHz ~ 2500MHz 대역의 태양전파를 관측합니다.

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  • Solar Radio

    The Sun emits the all the known radio wave of communication range (U/VHF) that we use every day in a radio, TV, beeper, and mobile phone.
    Radio noise enhances with the activity of the Sun, its intensity at solar maximum is about 7 times powerful than solar minimum, and also the solar radio burst that occurs during the process of the rapid variation of the Sun’s activity (Flare) is about 1000 times powerful than the emitted radio wave during solar minimum.
    Especially, monitoring and researching the solar radio burst, in the same manner the x-ray and shock wave, proton and charged particles, are important for predicting and analyzing the cause of the space weather variation.

    Solar Radio Graph

    The solar radio burst follows within a few minutes after the flare occurs, and is classified by its spectral type and spectral structure, and duration into 5 big types by table below.

    Radio Burst
    Radio Burst Type Characteristics Related Events
    Type I Short narrow band events that usually occur in great numbers together with a broader band continuum. Eruptive Prominence.
    Geomagnetic Storms.
    Ionospheric Storms.
    Type II Eruptive Prominence.
    Geomagnetic Storms.
    Ionospheric Storms.
    Coronal shock waves.
    Geomagnetic storms.
    Type III Rapidly drift from high to low frequencies.
    May exhibit harmonics.
    Often accompany the flash phase of large flares.
    Solar Flares.
    Type IV Flare-related broad-band continua Solar plasmoids
    Type V Broad-band continua which may appear with Type III bursts.
    Last 1 or 2 minutes, which duration increasing as frequency decreases.
    High speed electron beams

    Type I An example of the dynamic spectrum of various types of radiowave explosions, Type II An example of the dynamic spectrum of various types of radiowave explosions, Type III An example of the dynamic spectrum of various types of radiowave explosions,Type IV An example of the dynamic spectrum of various types of radiowave explosions