Meterwaves:
Nonthermal
Type II radio bursts
due to shocks:
Relation to CME is
controversial
(Wagner & MacQeen,
1983; Cane 1984; Gary et
al., 1994; Gopalswamy et
al., 1998; Cliver et al.,
1999; Reiner et al., 2001)
      Flare or CME?
Robinson & Stewart, 1985
Type II far behind CME
leading  Edge
Two shocks?