Internal Tides North of the Critical Latitude in the Fram Strait

We analyze measurements of temperature on moorings in the Fram Strait. Locations of moorings differ by the slope of the bottom topography and efficient vorticity induced by mean currents in the strait. Forcing by tidal currents also differs in different regions of the strait. High negative (anticyclonic) vorticity occasionally allows existence of internal tides of the M2 frequency north of the critical latitude (74°30’ N) for these waves.