Toropa I. Influence of regional tropospheric features on the results of GPS observations

The object is property of neutral atmosphere of western region of Ukraine and their influence on linear delay of signals of the companions; the purpose - development of point methods of the account of influence of neutral atmosphere for GPS observations because of experimental and theoretical researches of properties of the lower atmosphere in western region of Ukraine. Novelty - analysis of an exactitude of existing analytical models for definition composite of zenith tropospheric delay for the first time is conducted; it is offered empirical dependence of a modification of an index of an index of refraction of a water vapor with height; it is necessary to take into account the established optimum boundaries of heights of neutral atmosphere, up to which dry and humid composite index of an index of refraction; the method of the account of dynamics of properties of neutral atmosphere in western region of Ukraine for want of definition of dry and wet composite linear delay of signals of the companions isdeveloped. Outcomes - is developed models for the account of properties of neutral atmosphere in western region of Ukraine for want of definition of dry and wet composite linear delay of signals of the companions; is introduced into educational process and geodesic production; the field is geodesy.