Heat fluxes during the spring thermal bar in Lake Dolgoe, Belarus

Abstract

The values for short- and longwave radiation, latent and sensible heat fluxes were calculated for the spring thermal bar in Lake Dolgoe. A thermal bar phenomenon is a narrow zone of waters sinking in the area of temperature of maximum density. The calculations are based on meteorological data from stations in Sharkawshchyna, Polotsk and Lepel (44 km NW, 46 km NE, and 48 km SE of the lake, respectively). A comparative analysis was conducted for heat fluxes in April 2023. Maximum, minimum, and mean values of fluxes of short- and longwave radiation and latent and sensible heat were obtained.