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What is different in Solar Radio vs Radio Flux 10.7 cm?

  1. Nov 22, 2012 #1
    Referring to following links, I would like to know whether Solar Radio is equal to Radio Flux or not, it seems that it describes Solar Radio in different format.

    Are they monitoring the same objects?
    Does anyone have any suggestions on what the different is between them?

    Thanks in advance for any suggestions

    Radio Flux 10.7 cm
    http://www.swpc.noaa.gov/ftpdir/weekly/27DO.txt [Broken]

    Solar Radio at different Freq
    http://www.swpc.noaa.gov/ftpdir/lists/radio/rad.txt [Broken]
    4 minutes ago - 4 days left to answer.
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Nov 22, 2012 #2

    Drakkith

    User Avatar

    Staff: Mentor

    The site says the following:
    http://www.swpc.noaa.gov/forecast_verification/F10.html [Broken]

    Your second link has multiple frequencies listed, not just the 10.7 cm wavelength, but they are measured in the same units.
     
    Last edited by a moderator: May 6, 2017
  4. Nov 22, 2012 #3
    Thanks you very much for suggestions

    I get some questions not understand well about Solar Radio Flux.

    Questions about Solar Radio Flux

    Referring to following image, I would like to know how to define the measured units for Solar Radio Flux.

    http://i1093.photobucket.com/albums/i438/junk000/Radio.jpg [Broken]
    http://www.swpc.noaa.gov/ftpmenu/lists/radio.html [Broken]

    For example,

    Under column for 0500 UTC, will it refer to period starting from 0500 UTC to 1200 UTC?
    Under column for 0500 UTC, will it refer to period starting from 2300 UTC to 0500 UTC?


    Under the row for 410 Freq MHZ, wiill it referring to range starting from 245 to 410 Freq MHZ?
    Under the row for 410 Freq MHZ, wiill it referring to range starting from 410 to 610 Freq MHZ?


    Referring to following linked image, the data for solar radio flux are always missing for periods 500 UTC and 1200 UTC.
    Do you have any suggestion? Will equipment be turned off during this period?

    Thanks you very much for any suggestions
    http://i1093.photobucket.com/albums/i438/junk000/Radio.jpg [Broken]
     
    Last edited by a moderator: May 6, 2017
  5. Nov 23, 2012 #4
    Referring to following link, F10.7 represents a measure of diffuse, nonradiative heating of the coronal plasma trapped by magnetic fields over active regions. Does it represent a measure of amount of charges particles within plasma as well? which is Electric Flux Density.

    I am so confused, does anyone have any suggestions?
    Thanks everyone very much for any suggestions

    http://en.wikipedia.org/wiki/Solar_cycle#Solar_radio_flux
    Solar radio flux
    Emission from the Sun at centimetric (radio) wavelength is due primarily to coronal plasma trapped in the magnetic fields overlying active regions.[17] The F10.7 index is a measure of the solar radio flux per unit frequency at a wavelength of 10.7 cm, near the peak of the observed solar radio emission. F10.7 is often expressed in SFU or solar flux units. It represents a measure of diffuse, nonradiative heating of the coronal plasma trapped by magnetic fields over active regions, and is an excellent indicator of overall solar activity levels. The solar F10.7 cm record extends back to 1947, and is the longest direct record of solar activity available, other than sunspot-related quantities.
     
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