•Understand relationship between coronal and interplanetary type II bursts
•Use trajectories to understand the geometry of the magnetic field into which CMEs propagate
•Locate shock/magnetic field geometry of particle acceleration region
•Understand role of “seed particles” in SEP events
•Increase ability to predict occurrence/severity of SEP events.
•These studies will REQUIRE joint
•FASR/LOFAR/SIRA observations.