In work the first results of supervision over the snow cover lying in conditions anthropogenic of the changed landscape are presented. Supervision were spent on a site located in city boundaries of Yuzhno-Sakhalinsk. The comparative analysis of parameters of snow thickness (distribution of temperatures in snow thickness, density of layers of snow thickness, structure of layers and speed of recrystallization of snow thickness) on two platforms located in 220 m from each other was carried out. One of platforms has been put under ETL. Researches have shown that with other things being equal the same anthropogenic landscape on a platform located under ETL, parameters of snow thickness differed. Results have shown that the found out distinction doesn’t exclude influence of an electromagnetic field on structure of snow thickness.