Correction to “Nonlinear interaction of radiation belt electrons with electromagnetic ion cyclotron waves”

[1] The paper ‘‘Nonlinear interaction of radiation belt electrons with electromagnetic ion cyclotron waves,’’ by J. M. Albert and J. Bortnik (Geophysical Research Letters, 36, L12110, doi:10.1029/2009GL038904, 2009), contained several minor errors which should be noted, although they do not affect any of the results substantially. [2] Equation (4) for the Hamiltonian expression for the inhomogeneity ratio R should read