Broadband ULF waves are routinely observed throughout the magnetosheath. These waves may be of solar wind origin or they might be generated closer to Earth, for instance, in the foreshock. Magnetohydrodynamic (MHD) wave mode conversion is a mechanism capable of delivering the energy flux carried by these ULF MHD waves to the plasma at the magnetopause. We present numerical simulations for typical subsolar magnetopause configurations. Resonant coupling to Alfve´n and slow-mode waves can occur. Energy is fed to the plasma in the resonant sheets, which can explain the enhanced ULF fluctuation level observed at the magnetopause. ©2000 American Institute of Physics.