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Using the Wind/WAVES radio observations from 2010-2013, we present ananalysis of the 123 decametric-hectometric (DH) type II solar radio burstsduring this period, the associated type III burst properties, and theircorrelation with solar energetic proton (SEP) properties determined fromanalysis of the Geostationary Operational Environmental Satellite (GOES)observations. We present a useful catalog of the type II burst, type III burst,Langmuir wave, and proton flux properties for these 123 events, which we employto develop a statistical relationship between the radio properties and peakproton flux that can be used to forecast SEP events. We find that all SEPevents with a peak > 10 MeV flux above 15 pfu are associated with a type IIburst and virtually all SEP events, 92%, are also associated with a type IIIradio burst. Based on a principal component analysis, the radio burstproperties that are most highly correlated with the occurrence of gradual SEPevents and account for the most variance in the radio properties are the typeIII burst intensity and duration. Further, a logistic regression analysis withthe radio-derived principal component (dominated by the type III and type IIradio burst intensity and type III duration) obtains SEP predictionsapproaching the human forecaster rates, with a false alarm rate of 22%, aprobability of detection of 62%, and with 85% of the classifications correct.Therefore, type III radio bursts that occur along with a DH type II burst areshown to be an important diagnostic that can be used to forecast SEP events.

Type II and Type III Radio Bursts and their Correlation with Solar Energetic Proton Events