Baikal ice rings: a new hydrodynamic approach

  • Zyryanov V.N. 1
  • Chebanova M.K. 1
  • Zyryanov D.V. 1
  • 1 Water Problems Institute, Russian Academy of Sciences, Moscow, Russia
Keywords: ice rings, Baikal, eddy, under-ice Ekman layer, Stewartson layer


The phenomenon of ice rings in Baikal is discussed. It is shown that the thawing of ice from below in the shape of a ring is due to the formation of a vertical circular Stewartson layer on the lateral surface of the geostrophic eddy and, as a result, the appearance of a divergent vortex in the intersection area of the vertical cylindrical Stewartson layer and the horizontal under-ice Ekman layer.