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SOLARGEOPHYSICAL ACTIVITY SEPTEMBER 724
SOLAR RADIO EVENTS
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absorption active region amplitude associated auroral zone chromospheric Colorado component counting rate cycle detector electrojet electron energy enhancement filament flux density fmin foF2 Forbush decrease frequency geomagnetic storm Geophysical increase indicate intensity interplanetary interval ionospheric isomaps latitude magnetic field magnetograms magnetosphere maximum McMath plage region McMath Region 14943 measured Mirny Murmansk neutron monitor NOAA November 22 Observatory observed OCCT onset OOCT parameters particle peak period phase plasma plasmasphere plotted polar cap proton proton flare proton flux pulsations radio bursts radio emission recorded reported riometer satellite Sept September 19 September 1977 September 7-24 shown in Figure shows solar cosmic ray solar flare Solar Radio solar wind Solar-Geophysical Data Solar-Terrestrial Physics spectral spectrum spot stations structure substorm sunspot Table Type U.S. Department values variations wave wavelength World Data Center X-ray