We use acoustic pulse travel times to measure rms internal-wave currents and depth- and time- dependent rms internal-wave displacements west of Bermuda in August and September 1983. Displacement energy levels at depth ≲ 200 m are close to the standard Garrett-Munk (GM) level, while displacement energy levels in the depth range 600-900 m are about one-half GM. These levels are constant in time to ~30% over the 6 week data period. Current energy levels in the depth range 600-900 m are nearly 5 times higher than would be inferred from a GM model scaled to the observed displacements, probably indicating that near-inertial motions were much stronger than in a GM spectrum. These measurements are consistent with other in situ observations, if a general picture is formed of WKBJ-scaling violation of about a factor of 2 for displacements, and a strong non-GM inertial peak in horizontal current spectra. |