THE DEFINITIONS OF THE GEOID ON THE LOCAL TERRITORY
The results of determining of the geoid and quasi-geoid models on the local area with using of the different methods have been considered. The tasks of developing a local geoid model with using of the available measurements on the Earth’s surface have been defined. It is noted that the construction of a local system of heights using the collocation method is performed by approximating linear equations, but it is possible to use polynomials.