The averaged integrated parameter representing the mean value of ratio of total water vapors on wet delay at the chosen distance of latitude is suggested. The function of interrelation of such parameters as height of location site and latitude is suggested. It is shown, that the optimal function does exist which bring the averaged integrated parameter to its minimal value.

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Beginning from 1980s, the steady increase of total amount of deposited water or general amount of water vapor in the atmosphere almost above all regions of the Earth is observed. The changing of this parameter over the oceans strongly correlates with the temperature of sea water surface both in time and space. Obviously, the increase of total amount of deposited water or sum amount of water vapor leads to the growth of corresponding components of troposphere delay of GPS signals called “wet delay”. To achieve the goal set, foremost, the correlation properties of “wet delay” of GPS signals associated with the regularities of changing of total amount of deposited water in the atmosphere have been studied. Carried out analysis of actual materials of correlation properties of “wet” troposphere delay justified the presence of the aspects negatively affecting the correlation ratio of total amount of deposited water. Special correlation indexes allowing to regulate the balance of separate components of correlation function of “wet delay” are offered and their extreme nature shown as well. A new calculation technique for zenith wet delay by set value of integrated parameters of water vapor in the atmosphere has been developed.

The analysis of existing method for calculation of total content of electrons (TEC) in ionosphere using GPS occultation method does show that due to different values of signal/noise ration in GPS signals 1 L and 2 L , the new method of optimum measurements of relevant frequency components of TEC measured by phase and code methods should be developed. The optimum quantity of measurements of the above-mentioned frequency components is determined taking into account the limitation imposed on general number of necessary measurements.