The first of its kind course in aerohydrodynamics, built in relation to the needs of specialists related to both research and environmental protection. It discusses the issues of vortex movements in the framework of the theory of laminar hydrodynamic currents, as well as turbulent processes in the upper and lower layers of the atmosphere. Much attention is paid to buoyancy forces and circulation effects. The original statement of the problem is combined with simplicity of presentation and mathematical rigor.