Significant improvements in understanding coronal and interplanetary propagation of energetic particles are summarized, and their relationship to prediction techniques is indicated. Observation and theoretical evidence is drawn from synoptic compilations of solar activity and coronal magnetic structure as well as syntheses of plasma, field and energic particle observations between 1 and 6 AU, utilizing both solar and Jovian particles as probes of the heliosphere. Author
Continuation of contract N00017-72-C-4401. See also Rept. no. AFGL-TR-77-0166, AD-A045 021.