Tidal and Near-Inertial Internal Waves over the Reykjanes Ridge

Abstract Internal waves in the semidiurnal and near-inertial bands are investigated using an array of seven moorings located over Reykjanes Ridge a cross-ridge direction (57.6°–59.1°N, 28.5°–33.3°W). Continuous measurements horizontal velocity temperature for more than 2 years allow us to estimate kinetic energy density fluxes waves. We found that there is remarkable phase locking linear relationship between tidal conversion at spring–neap cycle. The energy-to-conversion ratio gives replenishment time scales 4–5 days on ridge top versus 7–9 flanks. Altogether, these results demonstrate bulk comes from near-local sources, with redistribution flanks, which endorsed by oriented direction. Implications tidally driven dissipation discussed. time-averaged smaller factor 2–3 but much variable time. It features strong seasonal cycle winter intensification subseasonal peaks associated local wind bursts. work 13–15 days, consistent short observed variability energy. In upper ocean (1 km), highest levels preferentially anticyclonic structures, twofold increase relative cyclonic illustrating funneling effect anticyclones.