THE PRESENTATION WILL BE GIVEN IN POLISH

The results of research on the energy budget over Poland from 1980 to 2021 will be presented. For this purpose, data from the MERRA-2 reanalysis and the results of simulations conducted using the Fu-Liou radiative transfer model coupled with climatic databases were used.

The average air temperature in Poland has been increasing in recent decades at a rate of approximately 0.5 degrees per decade. Simultaneously, there are changes in the energy budget both at the Earth's surface and at the top of the atmosphere. This is mainly due to changes in greenhouse gas concentrations but also to changes in aerosol and cloud physical parameters. The data indicate a significant increase in the shortwave transmittance resulting from the reduction of aerosols and cloud fraction. This leads to an increase in the energy budget at the Earth's surface and a reduction in the negative net energy flux at the top of the atmosphere. At the same time, the increase in temperature near the Earth's surface results in stronger radiation of energy in the form of longwave electromagnetic radiation. Changes in longwave radiation at the top of the atmosphere  are only partially compensated by a decrease in thermal radiation transmittance due to the increase in greenhouse gas concentrations. Additionally, temporal changes in selected atmospheric parameters that affect the energy budget will be discussed.