TY JOUR TI Convectively mixed layer in a boreal lake during the period of spring under-ice heating: Spatial structure and hydrodynamic parameters KW Boreal lakes; under-ice radiation; convectively mixed layer; acoustic Doppler current profilers; quasi-deterministic structures; progressive vector diagrams; up- and downwelling zones; turbulent stresses. JO Russian Journal of Earth Sciences AU Bogdanov, S.R. AU Zdorovennov, R.E. AU Palshin, N.I. AU Zdorovennova, G.E. AU Volkov, S.Y. AU Efremova, T.V. AU Gavrilenko, G.G. AU Terzhevik, A.Y. PY 2022 IS 21 PB Geophysical Center of the Russian Academy of Sciences