Аннотация:This paper presents the results of experimental studies of the turbulent structure of the surface layer in winter. Experiments were conducted over a small lake (close to White Sea Biological Station (WSBS) of Moscow State University) surrounded by forest.. The purpose of this study is evaluation of turbulent transport in the system “lake water– near-surface air – surrounding forest”. In order to distinguish the influence of the inhomogeneous landscape on the turbulent exchange in the atmosphere-surface system, excluding the effects of the thermal regime of the lake, the experiment was carried out in winter time over an ice-covered lake surface. In the first case (2015) we used an array of acoustic anemometers mounted at different distances from the lake. Measurements were taken at two heights in the center of the lake. In the second case (2017) 6-meter mast with instruments was installed in the center of the lake. There were 3 levels of ultrasonic three-component anemometers (2m, 4m and 6m) and two levels of standard meteorological measurement (3m and 5m). Temperature profile in the atmosphere was recorded with 50m step by microwave profiler MTP-5. Turbulent fluxes were calculated with Eddy-Covariance and gradient methods.
