Energy Balance at the Surface in King George Island - Preliminary Results of Eta Project

Abstract

In this work the diurnal evolution of the energy balance at the surface is estimated for the King George Island, based on in situ observations of net radiation, soil heat ux and vertical pro les of wind speed, air temperature and speci c humidity measured at the South Tower in the Brazilian Antarctic Station Comandante Ferraz. e turbulent uxes were estimated by adjusting vertical pro les expressions based on the Monin-Obukhov Similarity eory. e diurnal evolution of the energy balance components at the surface indicates, during this period, that the large input of energy causes large imbalance in the surface energy balance. e imbalanced term, estimated also for other periods, seems to be related mainly to the heterogeneity of the land use and topography.