What are Web sources for flux density for the Sun at specific radiomagnetic frequencies? This answer is courtesy of Kent Doggett, of the National Oceanic and Atmospheric Administration (NOAA).

There are a number of sources of solar radio flux data on the Web. Our NOAA gopher server has daily flux values (taken at local noon at the measuring observatory) at a number of discrete frequencies. From our homepage http://www.sec.noaa.gov follow the "Data Directores" link to "Lists of Solar-Geophysical Data" to "Solar Radio Flux Data." The direct address is gopher://solar.sec.noaa.gov:70/11/lists/radio.

The National Geophysical Data Center has a few radio solar radio links at http://www.ngdc.noaa.gov/stp/otherinterest.htm. The Penticton site has current flux values at 2800 MHz at http://www.drao.nrc.ca/icarus/www/sol_home.shtml. Some of the other links may be useful, too.

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Special Thanks to K. Doggett                 Last Modified by ALG on January 25, 1998.