The project aims at analysing dynamics of matter circulation in the polar catchment under the deglaciation processes and its effect on topoclimatic and microclimatic diversification of the area in question. Equally important are: 1) the dynamics of periglacial and 2) hydrological processes and changes in the local environment as an indicator of global climatic changes. The proposed project shall take into account the following: - general weather and climatic conditions and topoclimatic and microclimatic differentiation of selected sites; - albedo and solar radiation and their influence on the course of the processes; - changes in the circulation of water in space and time (precipitation-evaporation-outflow) as an effect of local and global processes; - analysis of processes that determine the amount of water entering the hydrological cycle including global climatic changes and characteristics of summer ablation in terms of meteorological conditions; - analysis of the factors which determine the occurrence and circulation of waters in the permafrost active layer and assessment of static and dynamic water resources in the active layer in meteorological and hydrogeological aspects; determination and quantitative analysis of the genetic structure of fluvial outflow; - water balance of selected catchments (glacial and periglacial ones) with diverse outflow alimentation sources.