Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 99743 10.2205/2025es001050 ilumxn ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Internal Tides North of the Critical Latitude in the Fram Strait Internal Tides North of the Critical Latitude in the Fram Strait https://orcid.org/0000-0002-0251-3454 Морозов Евгений Георгиевич Morozov Eugene Georgievich egmorozov@mail.ru https://orcid.org/0000-0001-8141-9513 Фрей Дмитрий Ильич Frey D. I. Институт океанологии им. П.П. Ширшова РАН Россия Shirshov Institute of Oceanology RAS Russian Federation Институт океанологии им. П.П. Ширшова РАН Россия Shirshov Institute of Oceanology RAS Russian Federation 10 09 2025 10 09 2025 25 5 ES5005 12 06 2025 13 07 2025 https://rjes.ru/en/nauka/article/99743/view

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.

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.

 moorings Fram Strait internal tides critical latitudes vorticity moorings Fram Strait internal tides critical latitudes vorticity This research was supported by Russian Science Foundation, grants 23-77-30001 (analysis of long term measurements) 25-17-00309 (interpretation of results). This research was supported by Russian Science Foundation, grants 23-77-30001 (analysis of long term measurements) 25-17-00309 (interpretation of results).

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